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 |
|---|---|---|---|
| tvwiki24.net | #203,938 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 6 more | Find emails |
| ulartoto.com | #203,958 | Bootstrap, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| virtualo.pl | #203,960 | Backbone.js, Cloudflare, Cloudflare Bot Management + 13 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| bookmark-media.com | #203,966 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| brandsdistribution.com | #203,991 | Google Fonts, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| playretrogames.online | #204,024 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| crg.eu | #204,085 | Apache, Bluesky, Bootstrap + 8 more | Find emails |
| shate-m.by | #204,111 | ASP.NET, Google Fonts, Yandex CDN + 4 more | Find emails |
| foodprotection.org | #204,126 | Adobe Fonts (Typekit), Apache, Bootstrap + 10 more | Find emails |
| parktele.com | #204,197 | Apache, Bootstrap, Joomla + 3 more | Find emails |
| generationgenius.com | #204,221 | BigScoots, Cloudflare, Cloudflare Bot Management + 13 more | Find emails |
| sjc.edu | #204,241 | Amazon (ACM), Amazon CloudFront, Cloudflare + 7 more | Find emails |
| userbookmark.com | #204,296 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| burnabyschools.ca | #204,328 | Divi, Font Awesome, Google Analytics + 7 more | Find emails |
| suttonparkgroup.co.uk | #204,333 | Font Awesome, Google Ads Conversion, Google Analytics + 11 more | Find emails |
| bookmarklinx.com | #204,365 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| indexedbookmarks.com | #204,436 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| mnobookmarks.com | #204,457 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| jubaowu.com.cn | #204,478 | Font Awesome, Foundation, Laravel + 4 more | Find emails |
| kyototo.org | #204,495 | Bootstrap, Cloudflare, Cloudflare Bot Management + 15 more | Find emails |
| ecobij.nl | #204,512 | Bootstrap, Font Awesome, Google Fonts + 7 more | Find emails |
| busyteacher.org | #204,525 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 17 more | Find emails |
| woub.org | #204,530 | Apache, Cloudflare, Disqus + 8 more | Find emails |
| bookmarkspecial.com | #204,564 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| sitexpro.com | #204,574 | Google Tag Manager, NS1, jQuery | 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →