JavaScript Library & Framework
27,702 of the 1,000,000 top sites in our Tranco top-1M census run Modernizr (2.8%). A JavaScript library that detects which HTML5/CSS3 features a browser supports, enabling progressive enhancement. Detection is homepage-level HTML/header fingerprinting, so a site can run Modernizr on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | mit.edu | #225 (Tranco) | Find emails |
| 2 | npr.org | #466 (Tranco) | Find emails |
| 3 | uk.com | #532 (Tranco) | Find emails |
| 4 | cornell.edu |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| begindirectory.com | #371,504 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| sptc.net | #371,533 | Apache, Font Awesome, Google Fonts + 3 more | Find emails |
| vidaeideasportal.mx | #371,553 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| crimsonpublishers.com | #371,592 | Apache, Blogger, Bootstrap + 11 more | Find emails |
| glen.com | #371,658 | Google Fonts, Let's Encrypt, Nginx + 7 more | Find emails |
| axiscraft.de | #371,686 | Bootstrap, Contabo Object Storage, Fancybox + 6 more | Find emails |
| moderncasinostation.nl | #371,698 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| rev9power.com | #371,724 | Apache, Google Fonts, Google Workspace + 5 more | Find emails |
| royalworld.us | #371,732 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| transportreviews.com | #371,775 | ASP.NET, AddThis, Azure DNS + 17 more | Find emails |
| quickcrest.de | #371,789 | Bootstrap, Contabo Object Storage, Fancybox + 6 more | Find emails |
| lasallebajio.edu.mx | #371,817 | Apache, Google Analytics, Google Tag Manager + 8 more | Find emails |
| sparkcrestway.us | #371,876 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| cleantrail.us | #371,885 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| directoryforever.com | #371,913 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| maria83401.com | #371,963 | Bootstrap, Cloudflare, Cloudflare Bot Management + 14 more | Find emails |
| koscom.co.kr | #371,964 | Apache, Bootstrap, Daum + 5 more | Find emails |
| stratum0.org | #371,997 | Fancybox, Google Hosted Libraries, Let's Encrypt + 3 more | Find emails |
| limelight-arts.com.au | #372,033 | AddToAny, Bootstrap, Cloudflare + 18 more | Find emails |
| northaxis.us | #372,040 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| 889993507.xyz | #372,055 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| sakharov-center.ru | #372,058 | Drupal, Font Awesome, Google Fonts + 6 more | Find emails |
| loeffelhardt.de | #372,071 | Apache, Cloudflare edge/CDN, DataTables + 9 more | Find emails |
| travelsetu.com | #372,097 | Bootstrap, Elfsight, Font Awesome + 15 more | Find emails |
| unlock.org.uk | #372,120 | Action Network, Adobe Fonts (Typekit), Google Tag Manager + 8 more | Find emails |
Showing the first 10,000matches — add a filter to narrow.
From the Crawlora Website Tech Stack Dataset, a homepage-level fingerprint of a 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →