3dcenter.org

3dcenter.org is SSL secured

Free website and domain report on 3dcenter.org

Last Updated: 13th October, 2022 Update Now
Overview

Snoop Summary for 3dcenter.org

This is a free and comprehensive report about 3dcenter.org. The domain 3dcenter.org is currently hosted on a server located in Strasbourg, Grand Est in France with the IP address 37.61.206.102, where EUR is the local currency and the local language is French. 3dcenter.org has the potential to be earning an estimated $12 USD per day from advertising revenue. If 3dcenter.org was to be sold it would possibly be worth $9,027 USD (based on the daily revenue potential of the website over a 24 month period). 3dcenter.org receives an estimated 4,334 unique visitors every day - a large amount of traffic! This report was last updated 13th October, 2022.

About 3dcenter.org

Site Preview: 3dcenter.org 3dcenter.org
Title: 3DCenter.org | Hintergründe, Fakten, Analysen zu Gamer-Hardware & IT
Description: 3DCenter ist die größte deutschsprachige Grafikkarten-Webseite. Schwerpunkte sind die Berichterstattung über Grafikkarten und andere Hardware für den Gamer, sowie das Thema Benchmarking und Hintergründe zu 3D-Effekten und -Features.
Keywords and Tags: hardware, software
Related Terms: computador gamer, effekten, fakten, gamer com tw, gamer community, gamer pc, gamer pc tilbud, horny gamer, servidor gamer, typical gamer
Fav Icon:
Age: Over 22 years old
Domain Created: 28th January, 2002
Domain Updated: 6th January, 2022
Domain Expires: 28th January, 2023
Review

Snoop Score

3/5 (Great!)

Valuation

$9,027 USD
Note: All valuation figures are estimates.

Popularity

Modest
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 142,709
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 4,334
Monthly Visitors: 131,913
Yearly Visitors: 1,581,910
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $12 USD
Monthly Revenue: $376 USD
Yearly Revenue: $4,508 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: 3dcenter.org 12
Domain Name: 3dcenter 8
Extension (TLD): org 3
Expiry Check:

Page Speed Analysis

Average Load Time: 0.96 seconds
Load Time Comparison: Faster than 80% of sites

PageSpeed Insights

Avg. (All Categories) 68
Performance 91
Accessibility 82
Best Practices 75
SEO 82
PWA 11
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: http://www.3dcenter.org/
Updated: 13th October, 2022

0.90 seconds
First Contentful Paint (FCP)
94%
4%
2%

0.00 seconds
First Input Delay (FID)
100%
0%
0%

Simulate loading on desktop
91

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for 3dcenter.org. This includes details about optimizing page load times which can result in a better user experience.

Metrics

First Contentful Paint — 0.7 s
The time taken for the first image or text on the page to be rendered.
Total Blocking Time — 100 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Largest Contentful Paint — 0.8 s
The timing of the largest text or image that is painted.
Cumulative Layout Shift — 0.001
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

First Meaningful Paint — 0.7 s
The time taken for the primary content of the page to be rendered.
Network Requests
Below is a list of network requests that were made during page load.
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http://3dcenter.org/
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http://www.3dcenter.org/sites/all/modules/jstools/collapsiblock/expanded.png
http/1.1
5770.1949999973
5874.9989999997
591
106
200
image/png
Image
https://tpc.googlesyndication.com/sodar/sodar2.js
h2
5778.9520000006
5786.6179999983
7166
17314
200
text/javascript
Script
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
h2
5799.6249999997
5808.229000002
5856
12817
200
text/html
Document
https://www.google.com/recaptcha/api2/aframe
h2
5801.8430000011
5809.0749999974
1423
783
200
text/html
Document
https://pagead2.googlesyndication.com/pagead/sodar?id=sodar2&v=225&li=gda_r20221011&jk=344009694436567&rc=null
h2
5840.0239999974
5846.7830000009
516
0
204
text/html
Image
https://pagead2.googlesyndication.com/bg/75n5MIkdKjMQGlOCWCYwhumMUPtaURPkn9Lrop-Fp5U.js
h2
5841.8239999955
5846.2149999978
16798
36831
200
text/javascript
Script
https://tpc.googlesyndication.com/generate_204?s3qc-A
h2
6116.2499999991
6121.6599999971
268
0
204
text/plain
Image
https://pagead2.googlesyndication.com/pagead/sodar?id=sodar2&v=225&t=2&li=gda_r20221011&jk=344009694436567&bg=!VlWlVRHNAAYqRg79CkY7ACkAdvg8WgX9t1vItvv1gXFElGOiDwRZZVQwAE5yQ6nSARRQTJJIGCEwtgIAAAE0UgAAAANoAQcKAIk2ferAaV1Tm1RCwAV9XXhEY_VEwnMiYv5p82C4j4dwxUuyMQe4yDmqRlaklHKn94RgoOw-InSe3nWCngRYlXgUrB4H3CmSlBl6N4CR-p6quqiSC-N_4bCzUraMu6ktOcRl5gLg8ENXEOXbypdT3meC09L7QtacBe5XOl8HFeaGVNsjpGUVQ4G1Y5kC_Cs0DXZPlOvhEXuPncMYY0Qu7jD-2NXF5oATUzxlBwq-5kE1y8SG5Lmol1kcU-lDiSY3dbgphjx815o6pKQyhy-tM_GxjNVOy0mtkE8lcd8ZiALmwGbO_ixQolCeiXcYHJniN8WCdj7IJEqgXUSkVsH8_tWIhIXIoEPGUIkKuvR2ekW_UhNihGaBzIhbA_EnhBK__XXqYPPpyHiBTczdLAKtX2VzefY-GvpZ7p1-Tss1oel4BeM3IsSXE5wUNSnzKsQ97VnyHN9ZvYbbBUaSzlvYLhHVh51oUI-MlmChjtg6KS0xfu_x5EqKQkVCGyA4OsNt4e6XhMht1scSQMvkxhUSSHekJx1rhjM9XyA36YOsGBmZOgAyzUZPY3YApf0doCKiweOJhsxJ9MZbCmsueSrBskCMjqgeYqykjZl8d9hAQx7KJjIY9-Y9n9z0rZ83nhvEt7KH3PgtZkBaiZZ270ALC2SCutWtrJ-mEC5BdE4Sf3j9CiZzCJpgyVzBFIfaEUopQXE6eVcENi_q0b-bjZyjrvWbB3HGmSnp21pYegt1nYlj_KVU6gr-ZXq8RU__2vdPanJyUlz2LumEmG2yt0mwy8q5XCP91606LxMpmAlNZj3Z9C2wfB6zUw2GKWdRJRQCyBeN5ZsDg45uNlGsFH2zntEGgxPiE_TFxjU20FheFmjKrxgSu3h_byXZAEEuQWVTmLzAqMVKGN-GBqKpuJINPxjVZ2J5JJOUTLElO53KcCjkl_qcJFLUy3p9GM1TlD6nQTn4UIHu-feCIISQ0QtQiuexXCrrVfIZ5l2nQkRKR3iyofS7bJKR8-W6imMPFHH2KvgvYVKmjqNDQExr7XBQKeJ5M4MbC5bhHaOruRgBKhFCbCeLONV7ggK2PVp9JqFFRM8vfdfgcLN-6lvD8PZ3kySZNA_-QmHU0-Aj3XdHfgpffNEJ2Jv1l8Hxe30z9iDqNpK79Ln8ZiAIfi4n_MF7nluqVhTUJclf-bvImuSz3kHSipMRPxvR_lIv
h2
6692.1819999989
6704.6360000022
516
0
204
text/html
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
925.911
12.205
1279.584
33.528
1315.318
31.674
1348.08
8.836
1357.462
68.418
1430.082
37.152
1467.243
24.959
1500.154
5.386
1509.724
7.771
1518.807
27.127
1560.202
27.926
1590.385
19.99
1610.418
60.239
1672.285
14.145
1687.899
11.221
1731.371
5.558
2086.251
5.821
2097.92
6.864
2104.83
13.618
2122.346
8.547
2133.137
29.901
2174.54
68.672
2243.281
5.716
2263.114
5.3
2273.212
5.111
2279.649
74.77
2357.745
24.076
2387.801
6.854
2412.659
14.947
2428.619
10.773
2442.413
5.883
2448.852
163.231
2617.869
7.478
2871.126
19.224
2913.491
130.547
3247.484
6.008
3254.691
7.272
4604.224
22.075
4628.009
9.553
4638.129
31.738
4669.976
17.822
4692.271
6.42
4698.71
6.771
4705.65
6.949
4717.339
7.044
4761.233
27.917
4789.355
27.22
4816.59
9.469
4826.381
28.645
4855.255
66.479
4922.943
9.844
4932.841
56.54
4995.354
38.748
5041.429
36.313
5078.012
68.583
5152.661
28.301
5185.886
31.626
5220.979
39.786
5261.818
6.661
5274.009
5.659
5288.805
6.888
5300.868
61.362
5362.583
5.804
5378.894
21.834
5624.763
5.912
5642.128
7.823
5674.699
6.82
5691.364
11.874
5738.279
28.719
5789.901
7.404
5812.751
7.006
5819.824
6.088
5849.347
25.456
5882.396
19.375
5905.125
13.617
5921.521
11.391
5935.64
14.767
5953.157
8.996
5970.426
15.59
5989.153
7.368
6000.108
19.519
6019.64
6.712
6029.713
12.108
6055.568
12.651
6070.582
15.335
6088.279
12.782
6103.896
12.075
6118.937
28.931
6155.347
11.468
6324.986
5.357
6687.116
5.527
7074.783
5.435
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Properly size images
Images can slow down the page's load time. 3dcenter.org should consider serving more appropriate-sized images.
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. 3dcenter.org should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. 3dcenter.org should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. 3dcenter.org should consider minifying JS files.
Reduce unused CSS — Potential savings of 25 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. 3dcenter.org should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/styles__ltr.css
25184
25171
Efficiently encode images — Potential savings of 61 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://www.3dcenter.org/werbung/caseking_CK-External-Nitro-S300EX-120x600.jpg
63305
37425
https://images-eu.ssl-images-amazon.com/images/G/03/AmazonMusic/CatalogClaimChange_DMUX-6012/Associates/DE-DE_ClaimChange_ACQ_ASC_120x600_CV9.jpg
48853
25486
Serve images in next-gen formats — Potential savings of 141 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://www.3dcenter.org/werbung/caseking_CK-External-Nitro-S300EX-120x600.jpg
63305
50580.6
https://images-eu.ssl-images-amazon.com/images/G/03/AmazonMusic/CatalogClaimChange_DMUX-6012/Associates/DE-DE_ClaimChange_ACQ_ASC_120x600_CV9.jpg
48853
37842.45
https://static.doubleclick.net/dynamic/5/65138550/9236509672036629362_743898752816480053.jpeg
74078
16727.15
https://static.doubleclick.net/dynamic/5/65138550/11229116110478452026_8313106066445870539.jpeg
75502
14924.25
https://static.doubleclick.net/dynamic/5/65138550/17083732113212228983_3550587092728063158.jpeg
53704
12852
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/logo.png
15737
11724.4
Enable text compression — Potential savings of 34 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://ws-eu.assoc-amazon.com/widgets/cm?o=3&p=11&l=ur1&category=musicunlimited&banner=19Q4XZK2RX44P8213Q82&f=ifr&linkID=62c0df9bd67aaf7f5ec2347e8b3ffec3&t=3dcentorg-21&tracking_id=3dcentorg-21
44965
35069
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. 3dcenter.org should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://3dcenter.org/
190
http://www.3dcenter.org/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. 3dcenter.org should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 8 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://tpc.googlesyndication.com/sadbundle/$csp%3Der3$/2326365885420612299/1a3f158e51377dea4369c38104f00bad.js
8452
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
Avoids enormous network payloads — Total size was 2,266 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160751
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160750
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160750
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160750
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160750
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202210060101/show_ads_impl_fy2021.js
128210
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.OHdVS3X4KvI.O/d=1/exm=el_conf/ed=1/rs=AN8SPfoA_F5UVCpRWiLj1kUFmHPGRTCrPA/m=el_main
96104
https://static.doubleclick.net/dynamic/5/65138550/11229116110478452026_8313106066445870539.jpeg
76425
https://static.doubleclick.net/dynamic/5/65138550/9236509672036629362_743898752816480053.jpeg
75001
http://www.3dcenter.org/werbung/caseking_CK-External-Nitro-S300EX-120x600.jpg
63796
Avoid chaining critical requests — 13 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. 3dcenter.org should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 1 user timing
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
translate:initialized
Mark
4647.641
Keep request counts low and transfer sizes small — 149 requests • 2,266 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
149
2320357
Script
40
1418412
Image
64
466493
Document
15
211917
Stylesheet
13
127139
Font
6
77812
Other
11
18584
Media
0
0
Third-party
93
2117005
Minimize third-party usage — Third-party code blocked the main thread for 170 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
795963
157.005
929646
6.022
192539
2.67
79196
0
49762
0
21278
0
991
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.00084455418381344
0.00026897819805621
0.00016635554388115
0.00011132708752882
9.2665348688243E-5
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoid long main-thread tasks — 6 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://pagead2.googlesyndication.com/bg/w6h4K76M0GEKzD-R2ifh2JqGy3BJ_UFGqDPwUYwRLsM.js
2831
131
https://pagead2.googlesyndication.com/bg/w6h4K76M0GEKzD-R2ifh2JqGy3BJ_UFGqDPwUYwRLsM.js
2126
82
https://tpc.googlesyndication.com/pagead/js/r20221011/r20110914/client/qs_click_protection_fy2021.js
2057
69
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
1839
66
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
702
61
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
1986
57
Avoid non-composited animations — 3 animated elements found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element Name
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

Time to Interactive — 2.7 s
The time taken for the page to become fully interactive.

Audits

Max Potential First Input Delay — 130 ms
Users could experience a delay when interacting with the page.

Other

Eliminate render-blocking resources — Potential savings of 140 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. 3dcenter.org should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
http://www.3dcenter.org/sites/all/themes/dreid_d5/style_front.css
1738
110
http://www.3dcenter.org/sites/all/themes/dreid_d5/3dcenter.css
1605
110
Reduce unused JavaScript — Potential savings of 303 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160751
91742
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202210060101/show_ads_impl_fy2021.js
128210
83640
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.OHdVS3X4KvI.O/d=1/exm=el_conf/ed=1/rs=AN8SPfoA_F5UVCpRWiLj1kUFmHPGRTCrPA/m=el_main
96104
69075
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-0003235904698967
55448
33899
https://ws-eu.assoc-amazon.com/widgets/cm?o=3&p=11&l=ur1&category=musicunlimited&banner=19Q4XZK2RX44P8213Q82&f=ifr&linkID=62c0df9bd67aaf7f5ec2347e8b3ffec3&t=3dcentorg-21&tracking_id=3dcentorg-21
43685
32090
Serve static assets with an efficient cache policy — 72 resources found
3dcenter.org can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://fls-eu.amazon-adsystem.com/1/associates-ads/1/OP/?cb=1665681064952&p=%7B%22program%22%3A%223%22%2C%22tag%22%3A%223dcentorg-21%22%2C%22linkCode%22%3A%22ur1%22%2C%22refUrl%22%3A%22http%3A%2F%2Fwww.3dcenter.org%2F%22%2C%22panda%22%3Atrue%7D
0
200
https://fls-eu.amazon-adsystem.com/1/associates-ads/1/OP/r/json?cb=1665681064952&logType=banner_impressions&p=%7B%22mobile_supported%22%3A%22true%22%2C%22action%22%3A%22onload%22%2C%22adunit_type%22%3A%22banners%22%2C%22adunit_properties%22%3A%7B%22height%22%3A%22%24%7Bheight%7D%22%2C%22width%22%3A%22%24%7Bwidth%7D%22%2C%22category%22%3A%22%24%7Bcampaigns%7D%22%2C%22marketplace%22%3A%22amazon%22%2C%22link_id%22%3A%22%24%7Blinkid%7D%22%2C%22region%22%3A%22DE%22%7D%2C%22logType%22%3A%22banner_impressions%22%7D
0
200
https://translate.googleapis.com/translate_static/css/translateelement.css
3600000
4545
https://translate.googleapis.com/translate_static/css/translateelement.css
3600000
4545
https://www.google-analytics.com/analytics.js
7200000
20664
https://images-eu.ssl-images-amazon.com/images/G/03/AmazonMusic/CatalogClaimChange_DMUX-6012/Associates/DE-DE_ClaimChange_ACQ_ASC_120x600_CV9.jpg
86400000
49762
https://tpc.googlesyndication.com/pagead/gadgets/html5/addata.js
86400000
13793
https://tpc.googlesyndication.com/pagead/gadgets/html5/api/exitapi-impl.js
86400000
3308
https://www.gstatic.com/recaptcha/api2/logo_48.png
604800000
3101
https://www.gstatic.com/recaptcha/api2/logo_48.png
604800000
3100
https://tpc.googlesyndication.com/pagead/js/r20221011/r20110914/abg_lite_fy2021.js
1209600000
10371
https://tpc.googlesyndication.com/pagead/js/r20221011/r20110914/abg_lite_fy2021.js
1209600000
10371
https://tpc.googlesyndication.com/pagead/js/r20221011/r20110914/client/qs_click_protection_fy2021.js
1209600000
8364
https://tpc.googlesyndication.com/pagead/js/r20221011/r20110914/client/qs_click_protection_fy2021.js
1209600000
8364
https://tpc.googlesyndication.com/pagead/js/r20221011/r20110914/client/window_focus_fy2021.js
1209600000
2152
https://tpc.googlesyndication.com/pagead/js/r20221011/r20110914/client/window_focus_fy2021.js
1209600000
2152
https://tpc.googlesyndication.com/pagead/js/r20221011/r20110914/client/load_preloaded_resource_fy2021.js
1209600000
1668
http://www.3dcenter.org/werbung/caseking_CK-External-Nitro-S300EX-120x600.jpg
2592000000
63796
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/logo.png
2592000000
16227
http://www.3dcenter.org/dateien/css/8fc423d284d9fd1dd0dcc4187e6e81d7.css
2592000000
9885
http://www.3dcenter.org/misc/jquery.js
2592000000
9676
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-sidebar-right-top.png
2592000000
7370
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-sidebar-left-top.png
2592000000
7179
http://www.3dcenter.org/sites/all/modules/thickbox/thickbox.js
2592000000
4494
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-content.png
2592000000
3744
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/calendar-icons.png
2592000000
3119
http://www.3dcenter.org/sites/all/modules/jstools/jstools.js
2592000000
2772
http://www.3dcenter.org/misc/drupal.js
2592000000
2738
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/gravotechnik.png
2592000000
2692
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-content-right.png
2592000000
2590
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-content-left.png
2592000000
2586
http://www.3dcenter.org/sites/all/themes/dreid_d5/functions.js
2592000000
2368
http://www.3dcenter.org/images/3dc/feed-big.png
2592000000
2191
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/feed-icon.png
2592000000
2113
http://www.3dcenter.org/images/3dc/twitter-big.png
2592000000
2109
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/primary-tab-pend.png
2592000000
1995
http://www.3dcenter.org/sites/all/modules/img_assist/img_assist.js
2592000000
1990
http://www.3dcenter.org/images/3dc/facebook-big.png
2592000000
1863
http://www.3dcenter.org/sites/all/themes/dreid_d5/style_front.css
2592000000
1738
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/headline-right.png
2592000000
1647
http://www.3dcenter.org/sites/all/themes/dreid_d5/3dcenter.css
2592000000
1605
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/primary-tab-ap.png
2592000000
1593
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/headline-left.png
2592000000
1524
http://www.3dcenter.org/sites/all/modules/thickbox/thickbox_auto.js
2592000000
1450
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/primary-tab-start.png
2592000000
1299
http://www.3dcenter.org/misc/feed.png
2592000000
1251
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-sidebar-left.png
2592000000
1212
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-sidebar-right.png
2592000000
1207
http://www.3dcenter.org/sites/all/themes/dreid_d5/print.css
2592000000
1164
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/primary-tab-aa.png
2592000000
1126
http://www.3dcenter.org/sites/all/modules/jstools/collapsiblock/collapsiblock.js
2592000000
1106
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/primary-tab-pp.png
2592000000
1074
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/tag_orange.png
2592000000
1073
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
2592000000
1044
http://www.3dcenter.org/sites/all/modules/jstools/jquery.cookie.min.js
2592000000
951
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/sidebar-collapsed.png
2592000000
845
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/sidebar-leaf.png
2592000000
818
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/sidebar-expanded.png
2592000000
808
http://www.3dcenter.org/sites/all/themes/dreid_d5/style_newstable.css
2592000000
798
http://www.3dcenter.org/sites/all/themes/dreid_d5/style_nodefields.css
2592000000
739
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-breadcrumb-left.png
2592000000
710
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-header.png
2592000000
705
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-breadcrumb-right.png
2592000000
703
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-container-bottom-left.png
2592000000
702
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-container-bottom-right.png
2592000000
691
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/headline.png
2592000000
660
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-primary-tabs-fade-right.png
2592000000
649
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-breadcrumb.png
2592000000
600
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-container-bottom.png
2592000000
596
http://www.3dcenter.org/sites/all/modules/jstools/collapsiblock/expanded.png
2592000000
591
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-primary-tabs-fade.png
2592000000
584
https://www.gstatic.com/mysidia/1d54d8cacad5994e062108e03542c880.js?tag=mysidia_one_click_handler_one_afma_2019
7776000000
14693
Avoid an excessive DOM size — 1,198 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
1198
Maximum DOM Depth
29
Maximum Child Elements
21
Reduce JavaScript execution time — 1.5 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
http://www.3dcenter.org/
754.12300000001
3.966
2.04
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
365.193
271.605
57.641
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
242.06
230.412
2.266
https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-0003235904698967&output=html&h=600&slotname=9073066703&adk=1478018976&adf=1050628065&pi=t.ma~as.9073066703&w=120&lmt=1665681062&format=120x600&url=http%3A%2F%2Fwww.3dcenter.org%2F&wgl=1&dt=1665681063152&bpp=1&bdt=532&idt=227&shv=r20221011&mjsv=m202210060101&ptt=9&saldr=aa&abxe=1&prev_fmts=0x0%2C728x90&nras=1&correlator=8546487351824&frm=20&pv=1&ga_vid=525836822.1665681063&ga_sid=1665681063&ga_hid=1651378197&ga_fc=0&u_tz=-420&u_his=2&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_sd=1&adx=18&ady=1628&biw=1350&bih=940&scr_x=0&scr_y=0&eid=44759875%2C44759926%2C44759837%2C44774717%2C44774649%2C42531705%2C44774653%2C44773746&oid=2&pvsid=344009694436567&tmod=1405634783&uas=0&nvt=1&eae=0&fc=1920&brdim=0%2C0%2C0%2C0%2C800%2C0%2C1%2C1%2C1350%2C940&vis=1&rsz=%7C%7CoeEbr%7C&abl=CS&pfx=0&fu=0&bc=23&ifi=3&uci=a!3&btvi=1&fsb=1&xpc=Z9hgQdqtSG&p=http%3A//www.3dcenter.org&dtd=234
214.349
174.523
8.106
Unattributable
162.006
2.739
0.129
https://www.googletagservices.com/activeview/js/current/rx_lidar.js?cache=r20110914
147.271
119.582
13.979
https://tpc.googlesyndication.com/pagead/gadgets/html5/addata.js
129.6
120.35
0.605
https://www.google.com/recaptcha/api2/anchor?ar=1&k=6LedBCYTAAAAANNw5ANmT2EfjEMzrMtAqZfS0Y78&co=aHR0cDovL3d3dy4zZGNlbnRlci5vcmc6ODA.&hl=en&v=vP4jQKq0YJFzU6e21-BGy3GP&size=normal&cb=8qnlxk7oyvck
112.122
87.893
2.162
https://www.google.com/recaptcha/api2/anchor?ar=1&k=6LedBCYTAAAAANNw5ANmT2EfjEMzrMtAqZfS0Y78&co=aHR0cDovL3d3dy4zZGNlbnRlci5vcmc6ODA.&hl=en&v=vP4jQKq0YJFzU6e21-BGy3GP&size=compact&cb=b5lg1kfhtslo
98.861
86.803
2.26
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-0003235904698967
94.689
68.105
14.917
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202210060101/show_ads_impl_fy2021.js
75.64
62.951
5.793
https://tpc.googlesyndication.com/sadbundle/$csp%3Der3$/2326365885420612299/1a3f158e51377dea4369c38104f00bad.js
72.714
57.215
2.059
http://www.3dcenter.org/misc/jquery.js
65.516
53.638
0.569
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.OHdVS3X4KvI.O/d=1/exm=el_conf/ed=1/rs=AN8SPfoA_F5UVCpRWiLj1kUFmHPGRTCrPA/m=el_main
59.245
32.956
5.288
https://tpc.googlesyndication.com/sadbundle/$csp%3Der3$/2326365885420612299/index.html
54.92
1.252
0.837
https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-0003235904698967&output=html&h=90&slotname=5949330535&adk=2423696997&adf=3055035423&pi=t.ma~as.5949330535&w=728&lmt=1665681062&format=728x90&url=http%3A%2F%2Fwww.3dcenter.org%2F&wgl=1&dt=1665681063149&bpp=3&bdt=530&idt=215&shv=r20221011&mjsv=m202210060101&ptt=9&saldr=aa&abxe=1&prev_fmts=0x0&nras=1&correlator=8546487351824&frm=20&pv=1&ga_vid=525836822.1665681063&ga_sid=1665681063&ga_hid=1651378197&ga_fc=0&u_tz=-420&u_his=2&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_sd=1&adx=615&ady=29&biw=1350&bih=940&scr_x=0&scr_y=0&eid=44759875%2C44759926%2C44759837%2C44774717%2C44774649%2C42531705%2C44774653%2C44773746&oid=2&pvsid=344009694436567&tmod=1405634783&uas=0&nvt=1&eae=0&fc=1920&brdim=0%2C0%2C0%2C0%2C800%2C0%2C1%2C1%2C1350%2C940&vis=1&rsz=%7C%7CaeE%7C&abl=CA&pfx=0&fu=0&bc=23&ifi=2&uci=a!2&fsb=1&xpc=EsjbKp3ouZ&p=http%3A//www.3dcenter.org&dtd=223
50.849
14.48
9.778
Minimize main-thread work — 2.9 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1519.667
Other
572.75699999999
Style & Layout
326.301
Rendering
241.27900000001
Script Parsing & Compilation
153.182
Parse HTML & CSS
65.274
Garbage Collection
55.268

Metrics

Speed Index — 2.5 s
The time taken for the page contents to be visibly populated.

Other

Reduce initial server response time — Root document took 690 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
http://www.3dcenter.org/
688.805
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/googlesansdisplay/v21/ea8FacM9Wef3EJPWRrHjgE4B6CnlZxHVDv79oT3ZQZQ.woff2
4.6880000008969
https://fonts.gstatic.com/s/googlesansdisplay/v21/ea8IacM9Wef3EJPWRrHjgE4B6CnlZxHVBg3etBD7TL5-PQE.woff2
4.2920000050799
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
3.4820000000764
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
89.864999994461
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
0.13900000340072
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
0.15200000052573
Avoid `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Source
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/feed-icon.png
http://www.3dcenter.org/images/3dc/feed-big.png
http://www.3dcenter.org/images/3dc/facebook-big.png
http://www.3dcenter.org/images/3dc/twitter-big.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of 3dcenter.org on mobile screens.
82

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of 3dcenter.org. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
3dcenter.org may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-*]` attributes do not match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
Failing Elements

Contrast

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements

Names and labels

`<frame>` or `<iframe>` elements do not have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Failing Elements
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
75

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that 3dcenter.org should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.0.4
Drupal
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://tpc.googlesyndication.com/sadbundle/$csp%3Der3$/2326365885420612299/1a3f158e51377dea4369c38104f00bad.js
https://tpc.googlesyndication.com/sadbundle/$csp%3Der3$/2326365885420612299/index.js.map
https://pagead2.googlesyndication.com/bg/w6h4K76M0GEKzD-R2ifh2JqGy3BJ_UFGqDPwUYwRLsM.js
https://pagead2.googlesyndication.com/bg/75n5MIkdKjMQGlOCWCYwhumMUPtaURPkn9Lrop-Fp5U.js
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 56 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://3dcenter.org/
Allowed
http://www.3dcenter.org/
Allowed
http://www.3dcenter.org/dateien/css/8fc423d284d9fd1dd0dcc4187e6e81d7.css
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/style_front.css
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/3dcenter.css
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/feed-icon.png
Allowed
http://www.3dcenter.org/werbung/caseking_CK-External-Nitro-S300EX-120x600.jpg
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/comments.png
Allowed
http://www.3dcenter.org/misc/feed.png
Allowed
http://www.3dcenter.org/images/3dc/feed-big.png
Allowed
http://www.3dcenter.org/images/3dc/facebook-big.png
Allowed
http://www.3dcenter.org/images/3dc/twitter-big.png
Allowed
http://www.3dcenter.org/misc/jquery.js
Allowed
http://www.3dcenter.org/misc/drupal.js
Allowed
http://www.3dcenter.org/sites/all/modules/img_assist/img_assist.js
Allowed
http://www.3dcenter.org/sites/all/modules/jstools/jstools.js
Allowed
http://www.3dcenter.org/sites/all/modules/jstools/collapsiblock/collapsiblock.js
Allowed
http://www.3dcenter.org/sites/all/modules/jstools/jquery.cookie.min.js
Allowed
http://www.3dcenter.org/sites/all/modules/thickbox/thickbox_auto.js
Allowed
http://www.3dcenter.org/sites/all/modules/thickbox/thickbox.js
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/functions.js
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/print.css
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/style_newstable.css
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/style_nodefields.css
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-primary-tabs-fade.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-primary-tabs-fade-right.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/primary-tab-start.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/primary-tab-aa.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/primary-tab-ap.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/primary-tab-pp.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/primary-tab-pend.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-sidebar-right.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-sidebar-left.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-header.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-sidebar-right-top.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-sidebar-left-top.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-container-bottom.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-container-bottom-right.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-container-bottom-left.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/logo.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/sidebar-leaf.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/sidebar-expanded.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/sidebar-collapsed.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-breadcrumb.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-breadcrumb-right.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-breadcrumb-left.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-content-right.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-content-left.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/bg-content.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/headline-right.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/headline-left.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/headline.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/calendar-icons.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/tag_orange.png
Allowed
http://www.3dcenter.org/sites/all/themes/dreid_d5/images/gravotechnik.png
Allowed
http://www.3dcenter.org/sites/all/modules/jstools/collapsiblock/expanded.png
Allowed
Includes front-end JavaScript libraries with known security vulnerabilities — 5 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
5
Medium

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
Failed to load resource: the server responded with a status of 404 (Not Found)
The Cross-Origin-Opener-Policy header has been ignored, because the URL's origin was untrustworthy. It was defined either in the final response or a redirect. Please deliver the response using the HTTPS protocol. You can also use the 'localhost' origin instead. See https://www.w3.org/TR/powerful-features/#potentially-trustworthy-origin and https://html.spec.whatwg.org/#the-cross-origin-opener-policy-header.
82

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for 3dcenter.org. This includes optimizations such as providing meta data.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Mobile Friendly

Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of 3dcenter.org on mobile screens.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
11

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of 3dcenter.org. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of 3dcenter.org on mobile screens.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 71
Performance 29
Accessibility 81
Best Practices 67
SEO 99
PWA 80
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: http://m.3dcenter.org/
Updated: 13th October, 2022

1.15 seconds
First Contentful Paint (FCP)
93%
5%
2%

0.02 seconds
First Input Delay (FID)
94%
5%
1%

Simulate loading on mobile
29

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for 3dcenter.org. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

Properly size images
Images can slow down the page's load time. 3dcenter.org should consider serving more appropriate-sized images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. 3dcenter.org should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. 3dcenter.org should consider minifying JS files.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 470 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
http://m.3dcenter.org/
473.317
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. 3dcenter.org should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
Avoids enormous network payloads — Total size was 1,411 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160750
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160750
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160750
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160750
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160750
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202210060101/show_ads_impl_fy2021.js?bust=31070256
128219
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.js
56825
http://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
55325
https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js
32100
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/styles__ltr.css
25184
Uses efficient cache policy on static assets — 13 resources found
3dcenter.org can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://flattr.com/
0
2648
https://www.google-analytics.com/analytics.js
7200000
20664
https://www.gstatic.com/recaptcha/api2/logo_48.png
604800000
3101
https://www.gstatic.com/recaptcha/api2/logo_48.png
604800000
3101
http://m.3dcenter.org/sites/all/themes/mobilejq/favicon.ico
1209600000
7801
http://m.3dcenter.org/sites/all/themes/mobilejq/jquery.mobile.3dc.min.css
2592000000
7734
http://m.3dcenter.org/sites/all/themes/mobilejq/images/ajax-loader.gif
2592000000
6730
http://m.3dcenter.org/sites/all/themes/mobilejq/logo.png
2592000000
5929
http://m.3dcenter.org/sites/all/themes/mobilejq/images/bg-content.png
2592000000
3640
http://m.3dcenter.org/sites/all/themes/mobilejq/functions.min.js
2592000000
2885
http://m.3dcenter.org/images/3dc/feed-big.png
2592000000
2191
http://m.3dcenter.org/images/3dc/twitter-big.png
2592000000
2109
http://m.3dcenter.org/images/3dc/facebook-big.png
2592000000
1862
Avoid chaining critical requests — 3 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. 3dcenter.org should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Keep request counts low and transfer sizes small — 60 requests • 1,411 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
60
1444914
Script
18
1133901
Stylesheet
7
133437
Document
10
76052
Font
4
46704
Image
13
38365
Other
8
16455
Media
0
0
Third-party
48
1392065
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Avoid large layout shifts
Below is a list of all DOM elements that contribute to the CLS of the page.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 20 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js
5923
359
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
8242
291
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
7351
289
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
2868
238
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202210060101/show_ads_impl_fy2021.js?bust=31070256
6951
237
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
2172
141
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
2038
134
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
13700
124
https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js
6309
106
http://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
4368
105
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
7248
103
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
12198
102
https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js
5820
101
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
1938
100
http://m.3dcenter.org/
640
97
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
8148
94
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
13608
92
https://googleads.g.doubleclick.net/pagead/html/r20221011/r20190131/zrt_lookup.html
5148
75
https://www.google-analytics.com/analytics.js
3420
72
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
13440
63
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of 3dcenter.org on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Audits

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://3dcenter.org/
http/1.1
0
257.85499997437
325
0
301
text/html
http://www.3dcenter.org/
http/1.1
258.22399999015
568.43899999512
784
0
302
text/html
http://m.3dcenter.org/
http/1.1
568.8969999901
1041.2229999783
10859
43560
200
text/html
Document
http://m.3dcenter.org/sites/all/themes/mobilejq/jquery.mobile.3dc.min.css
http/1.1
1050.1769999973
1274.728999997
7734
34666
200
text/css
Stylesheet
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.structure.min.css
h2
1050.8960000006
1095.1789999963
11235
68712
200
text/css
Stylesheet
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.icons.min.css
h2
1051.146999991
1158.7539999746
13733
127053
200
text/css
Stylesheet
http://m.3dcenter.org/sites/all/themes/mobilejq/functions.min.js
http/1.1
1051.3090000022
1311.5000000107
2885
6677
200
application/javascript
Script
https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js
h2
1058.6069999845
1072.1110000159
32100
89476
200
text/javascript
Script
https://code.jquery.com/jquery-migrate-3.3.2.min.js
h2
1059.1750000021
1081.8379999837
4599
11224
200
application/javascript
Script
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.js
h2
1059.2809999944
1075.1189999864
56825
200137
200
text/javascript
Script
http://m.3dcenter.org/sites/all/themes/mobilejq/logo.png
http/1.1
1059.3649999937
1285.1270000101
5929
5440
200
image/png
Image
http://m.3dcenter.org/images/3dc/feed-big.png
http/1.1
1059.4689999707
1320.0930000166
2191
1703
200
image/png
Image
http://m.3dcenter.org/images/3dc/facebook-big.png
http/1.1
1059.5500000054
1177.9419999802
1862
1375
200
image/png
Image
http://m.3dcenter.org/images/3dc/twitter-big.png
http/1.1
1059.6399999922
1320.5430000089
2109
1621
200
image/png
Image
http://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
http/1.1
1059.9090000032
1100.1849999884
55325
167534
200
text/javascript
Script
https://www.google.com/recaptcha/api.js
h2
1059.9940000102
1088.9439999592
1148
850
200
text/javascript
Script
https://api.flattr.com/js/0.6/load.js?mode=auto
http/1.1
1060.0749999867
1157.5149999699
726
0
301
text/html
https://googleads.g.doubleclick.net/pagead/html/r20221011/r20190131/zrt_lookup.html
h2
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Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1044.826
11.93
1111.058
26.279
1151.278
6.518
1164.136
37.737
1277.938
23.931
1301.887
48.629
1363.535
50.264
1414.201
9.469
1424.589
5.173
1432.227
59.182
1492.42
17.969
1510.399
7.766
1520.887
179.58
1700.524
13.579
1714.116
52.823
1775.03
6.958
1784.227
20.296
1809.958
49.991
1894.021
7.115
1906.7
11.799
1919.532
7.423
1959.084
25.698
1984.83
72.343
2057.2
7.333
2075.898
14.746
2091.772
66.798
2160.077
23.601
2185.979
29.88
2216.251
72.726
2291.607
5.588
2299.15
7.83
2309.508
35.249
2347.732
6.494
2354.276
23.986
2381.793
5.366
2387.606
59.459
2448.374
5.54
2454.089
7.001
2465.499
25.46
2535.334
8.585
2544.002
11.363
2555.527
6.371
2576.18
6.5
2587.418
23.016
2614.328
13.547
2628.841
11.33
2641.589
11.73
2655.182
11.429
2667.451
15.666
2688.752
14.859
2703.63
7.442
2719.914
23.1
2746.913
7.241
2757.945
30.893
2789.97
12.43
2803.241
13.2
2818.575
12.823
2832.398
11.926
3345.635
6.751
3353.072
5.88
3358.98
12.764
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Eliminate render-blocking resources — Potential savings of 300 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. 3dcenter.org should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
http://m.3dcenter.org/sites/all/themes/mobilejq/jquery.mobile.3dc.min.css
7734
180
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.structure.min.css
11235
930
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.icons.min.css
13733
150
Defer offscreen images — Potential savings of 11 KiB
Time to Interactive can be slowed down by resources on the page. 3dcenter.org should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
http://m.3dcenter.org/sites/all/themes/mobilejq/images/ajax-loader.gif
6242
6242
http://m.3dcenter.org/sites/all/themes/mobilejq/logo.png
5440
5440
Reduce unused CSS — Potential savings of 37 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. 3dcenter.org should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/styles__ltr.css
25184
25171
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.icons.min.css
13733
12822
Avoid an excessive DOM size — 827 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
827
Maximum DOM Depth
17
Maximum Child Elements
14

Metrics

First Contentful Paint — 4.0 s
The time taken for the first image or text on the page to be rendered.
Time to Interactive — 13.3 s
The time taken for the page to become fully interactive.
Speed Index — 6.2 s
The time taken for the page contents to be visibly populated.
Total Blocking Time — 1,400 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Largest Contentful Paint — 6.9 s
The timing of the largest text or image that is painted.

Audits

Max Potential First Input Delay — 360 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 5.1 s
The time taken for the primary content of the page to be rendered.

Other

Reduce unused JavaScript — Potential savings of 234 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
160750
91485
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202210060101/show_ads_impl_fy2021.js?bust=31070256
128219
85345
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.js
56825
33197
http://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
55325
29429
Avoid multiple page redirects — Potential savings of 1,260 ms
Redirects can cause additional delays before the page can begin loading. 3dcenter.org should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://3dcenter.org/
630
http://www.3dcenter.org/
630
http://m.3dcenter.org/
0
Reduce JavaScript execution time — 4.3 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.gstatic.com/recaptcha/releases/vP4jQKq0YJFzU6e21-BGy3GP/recaptcha__en.js
1391.804
1035.216
241.804
https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js
1066.46
674.988
5.88
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
864.996
822.296
8.34
http://m.3dcenter.org/
749.392
34.948
5.864
Unattributable
432.972
10.352
0.572
https://www.google.com/recaptcha/api2/anchor?ar=1&k=6LedBCYTAAAAANNw5ANmT2EfjEMzrMtAqZfS0Y78&co=aHR0cDovL20uM2RjZW50ZXIub3JnOjgw&hl=en&v=vP4jQKq0YJFzU6e21-BGy3GP&size=normal&cb=bil0q8eb3650
382.82
308.22
8.068
https://www.google.com/recaptcha/api2/anchor?ar=1&k=6LedBCYTAAAAANNw5ANmT2EfjEMzrMtAqZfS0Y78&co=aHR0cDovL20uM2RjZW50ZXIub3JnOjgw&hl=en&v=vP4jQKq0YJFzU6e21-BGy3GP&size=compact&cb=yuz9f51qhod9
342.2
300.636
7.98
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202210060101/show_ads_impl_fy2021.js?bust=31070256
292.488
251.108
22.04
http://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
184.496
94.532
10.92
https://www.google.com/recaptcha/api2/bframe?hl=en&v=vP4jQKq0YJFzU6e21-BGy3GP&k=6LedBCYTAAAAANNw5ANmT2EfjEMzrMtAqZfS0Y78
173.652
88.12
10.604
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.js
131.912
112.976
12.464
https://pagead2.googlesyndication.com/bg/GqdA_Tv7WdpTYI8K1v09aLIv-PCgI0anbpiD0lWdf3k.js
90.568
81.568
7.672
https://www.google-analytics.com/analytics.js
76.592
68.872
3.492
https://tpc.googlesyndication.com/sodar/sodar2.js
67.316
59.464
1.232
Minimize main-thread work — 6.4 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
4002.432
Style & Layout
952.32
Other
611.056
Script Parsing & Compilation
366.744
Rendering
204.552
Parse HTML & CSS
150.144
Garbage Collection
137.944
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
7.0249999989755
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
0.25000004097819
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
0.17800001660362
https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
0.1860000193119
Reduce the impact of third-party code — Third-party code blocked the main thread for 1,740 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
1024580
1061.064
56177
374.42
234659
285.464
21276
15.556
46704
0
4599
0
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Source
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
http://m.3dcenter.org/images/3dc/feed-big.png
http://m.3dcenter.org/images/3dc/facebook-big.png
http://m.3dcenter.org/images/3dc/twitter-big.png
First Contentful Paint (3G) — 7773 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.
81

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of 3dcenter.org. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
3dcenter.org may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements

Names and labels

Best practices

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
67

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that 3dcenter.org should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
3.5.1
jQuery UI
c0ab71056b936627e8a7821f03c044aec6280a40
jQuery Mobile
1.4.5
Drupal
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.js
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.map
https://pagead2.googlesyndication.com/bg/GqdA_Tv7WdpTYI8K1v09aLIv-PCgI0anbpiD0lWdf3k.js
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 13 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://3dcenter.org/
Allowed
http://www.3dcenter.org/
Allowed
http://m.3dcenter.org/
Allowed
http://m.3dcenter.org/sites/all/themes/mobilejq/jquery.mobile.3dc.min.css
Allowed
http://m.3dcenter.org/sites/all/themes/mobilejq/functions.min.js
Allowed
http://m.3dcenter.org/sites/all/themes/mobilejq/logo.png
Allowed
http://m.3dcenter.org/images/3dc/feed-big.png
Allowed
http://m.3dcenter.org/images/3dc/facebook-big.png
Allowed
http://m.3dcenter.org/images/3dc/twitter-big.png
Allowed
http://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
Allowed
http://m.3dcenter.org/sites/all/themes/mobilejq/images/bg-content.png
Allowed
http://m.3dcenter.org/sites/all/themes/mobilejq/favicon.ico
Allowed
http://m.3dcenter.org/sites/all/themes/mobilejq/images/ajax-loader.gif
Allowed
Includes front-end JavaScript libraries with known security vulnerabilities — 1 vulnerability detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
1
Medium

Audits

Serves images with low resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
URL Displayed size Actual size Expected size
http://m.3dcenter.org/images/3dc/facebook-big.png
32 x 32
32 x 32
64 x 64
http://m.3dcenter.org/images/3dc/feed-big.png
32 x 32
32 x 32
64 x 64
http://m.3dcenter.org/images/3dc/twitter-big.png
32 x 32
32 x 32
64 x 64

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
Refused to execute script from 'https://flattr.com/' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
The Cross-Origin-Opener-Policy header has been ignored, because the URL's origin was untrustworthy. It was defined either in the final response or a redirect. Please deliver the response using the HTTPS protocol. You can also use the 'localhost' origin instead. See https://www.w3.org/TR/powerful-features/#potentially-trustworthy-origin and https://html.spec.whatwg.org/#the-cross-origin-opener-policy-header.
The Cross-Origin-Opener-Policy header has been ignored, because the URL's origin was untrustworthy. It was defined either in the final response or a redirect. Please deliver the response using the HTTPS protocol. You can also use the 'localhost' origin instead. See https://www.w3.org/TR/powerful-features/#potentially-trustworthy-origin and https://html.spec.whatwg.org/#the-cross-origin-opener-policy-header.
99

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for 3dcenter.org. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of 3dcenter.org on mobile screens.
Document uses legible font sizes — 99.71% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
.small
0.23%
10.24px
.rc-anchor-normal .rc-anchor-pt, .rc-anchor-invisible .rc-anchor-pt, .rc-anchor-compact .rc-anchor-pt
0.02%
8px
.rc-anchor-normal .rc-anchor-pt, .rc-anchor-invisible .rc-anchor-pt, .rc-anchor-compact .rc-anchor-pt
0.02%
8px
.rc-anchor-logo-text
0.01%
10px
.rc-anchor-logo-text
0.01%
10px
99.71%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 97% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
30x35
»

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
80

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of 3dcenter.org. This includes details about web app manifests.

Installable

Web app manifest and service worker meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.

PWA Optimized

Configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Sets a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of 3dcenter.org on mobile screens.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 37.61.206.102
Continent: Europe
Country: France
France Flag
Region: Grand Est
City: Strasbourg
Longitude: 7.7844
Latitude: 48.6025
Currencies: EUR
Languages: French

Web Hosting Provider

Name IP Address
Host Europe GmbH
Registration

Domain Registrant

Private Registration: No
Name:
Organization:
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
Public Interest Registry 109.68.33.11
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness: 93/100
WOT Child Safety: 92/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: www.3dcenter.org
Issued By: R3
Valid From: 21st August, 2022
Valid To: 19th November, 2022
Subject: CN = www.3dcenter.org
Hash: bcabaab3
Issuer: CN = R3
O = Let's Encrypt
S = US
Version: 2
Serial Number: 0x045AC99C8F2340CCCE8F2E831F8CDD5C1325
Serial Number (Hex): 045AC99C8F2340CCCE8F2E831F8CDD5C1325
Valid From: 21st August, 2024
Valid To: 19th November, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
Certificate Policies: Policy: 2.23.140.1.2.1
Policy: 1.3.6.1.4.1.44947.1.1.1
CPS: http://cps.letsencrypt.org

Authority Information Access: OCSP - URI:http://r3.o.lencr.org
CA Issuers - URI:http://r3.i.lencr.org/

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 29:79:BE:F0:9E:39:39:21:F0:56:73:9F:63:A5:77:E5:
BE:57:7D:9C:60:0A:F8:F9:4D:5D:26:5C:25:5D:C7:84
Timestamp : Aug 21 12:17:39.269 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:32:F6:10:84:45:B2:41:12:F6:05:F7:38:
6E:85:50:6C:C3:56:96:43:43:13:21:BE:CD:97:6B:68:
DA:43:96:B8:02:21:00:AB:3F:94:1D:83:0F:63:89:9A:
1E:2B:10:F0:8F:5C:37:48:BE:2E:C8:A8:B3:A5:2C:21:
3A:6E:8C:AE:3D:7D:E9
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : DF:A5:5E:AB:68:82:4F:1F:6C:AD:EE:B8:5F:4E:3E:5A:
EA:CD:A2:12:A4:6A:5E:8E:3B:12:C0:20:44:5C:2A:73
Timestamp : Aug 21 12:17:39.783 2022 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:6C:D2:63:F2:D9:1D:2A:5A:DA:55:FA:1A:
4B:3D:45:F8:2E:55:1D:DB:2B:57:FE:21:5B:35:E6:BB:
AD:9E:61:4F:02:21:00:9A:B8:87:AB:A8:07:11:EF:0D:
64:BD:5C:49:D4:92:E1:F2:04:23:CB:A1:C1:31:70:9D:
F4:3D:81:E5:A9:00:02
Key Usage: Digital Signature
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:alt.3dcenter.org
DNS:m.3dcenter.org
DNS:mail.3dcenter.org
DNS:webmail.3dcenter.org
DNS:www.3dcenter.org
DNS:3dcenter.org
Technical

DNS Lookup

A Records

Host IP Address Class TTL
3dcenter.org. 37.61.206.102 IN 600

NS Records

Host Nameserver Class TTL
3dcenter.org. ns25.domaincontrol.com. IN 3600
3dcenter.org. ns26.domaincontrol.com. IN 3600

AAAA Records

IP Address Class TTL
2a01:488:67:1000:253d:ce66:0:1 IN 21600

MX Records

Priority Host Server Class TTL
50 3dcenter.org. mail.3dcenter.org. IN 600

SOA Records

Domain Name Primary NS Responsible Email TTL
3dcenter.org. ns25.domaincontrol.com. dns.jomax.net. 3600

TXT Records

Host Value Class TTL
3dcenter.org. v=spf1 IN 21600
3dcenter.org. google-site-verification=e1Wy0hZcviIbgN3P8ZynAeH9PCsQUqNOyGRpHpAWHGI IN 21600

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Date: 13th October, 2022
Server: Apache
Expires: 19th November, 1978
Cache-Control: post-check=0, pre-check=0
Content-Type: text/html; charset=utf-8
X-Content-Type-Options: nosniff
Set-Cookie: *
Last-Modified: 13th October, 2022
X-Frame-Options: sameorigin
Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Resource-Policy: same-origin

Whois Lookup

Created: 28th January, 2002
Changed: 6th January, 2022
Expires: 28th January, 2023
Registrar: Mesh Digital Limited
Status: clientDeleteProhibited
clientTransferProhibited
clientUpdateProhibited
Nameservers: ns25.domaincontrol.com
ns26.domaincontrol.com
Owner Name: REDACTED FOR PRIVACY
Owner Organization: Whitianga Marketing Ltd., BVI
Owner Street: REDACTED FOR PRIVACY
Owner Post Code: REDACTED FOR PRIVACY
Owner City: REDACTED FOR PRIVACY
Owner Country: LI
Owner Phone: REDACTED FOR PRIVACY
Owner Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin Post Code: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech Post Code: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Full Whois: Domain Name: 3dcenter.org
Registry Domain ID: e7d1238d1fa045f0a35eff61de411e01-LROR
Registrar WHOIS Server: http://whois.meshdigital.com
Registrar URL: http://www.domainmonster.com
Updated Date: 2022-06-01T16:29:39Z
Creation Date: 2002-01-28T07:52:15Z
Registry Expiry Date: 2023-01-28T07:52:15Z
Registrar: Mesh Digital Limited
Registrar IANA ID: 1390
Registrar Abuse Contact Email: abuse.contact@hosteuropegroup.com
Registrar Abuse Contact Phone: +44.1483304030
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Whitianga Marketing Ltd., BVI
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province:
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: LI
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns25.domaincontrol.com
Name Server: ns26.domaincontrol.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2022-10-13T17:10:58Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

Terms of Use: Access to Public Interest Registry WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the Public Interest Registry registry database. The data in this record is provided by Public Interest Registry for informational purposes only, and Public Interest Registry does not guarantee its accuracy. This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Donuts except as reasonably necessary to register domain names or modify existing registrations. All rights reserved. Public Interest Registry reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy. The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.

Nameservers

Name IP Address
ns25.domaincontrol.com 97.74.102.13
ns26.domaincontrol.com 173.201.70.13
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