JavaScript Library & Framework
26,986 of the 1,000,000 top sites in our Tranco top-1M census run Modernizr (2.7%). 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 |
|---|---|---|---|
| ritlabs.com | #132,831 | Bitrix, Bootstrap, Cloudflare + 6 more | Find emails |
| brewbound.com | #132,911 | ASP.NET, Adobe Fonts (Typekit), Amazon Route 53 + 18 more | Find emails |
| creativescotland.com | #132,943 | ASP.NET, Civic Cookie Control, Cloudflare + 8 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| stream101.com | #132,963 | Apache, Bootstrap, Font Awesome + 10 more | Find emails |
| sound-social.com | #133,001 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| holidaymedia.nl | #133,021 | Meta Pixel, Nginx, Sectigo + 3 more | Find emails |
| worldlistpro.com | #133,038 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| communio-icr.com | #133,067 | Apache, Google Analytics, Let's Encrypt + 1 more | Find emails |
| taxslayerpro.com | #133,120 | Azure API Management, Bootstrap, Cloudflare + 17 more | Find emails |
| websrvcs.com | #133,128 | DigiCert, Ruby on Rails | Find emails |
| sprayground.com | #133,223 | Attentive, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| cancioneros.com | #133,254 | Google AdSense, Google Analytics, Google Tag Manager + 6 more | Find emails |
| gskill.com | #133,279 | Apache, GSAP, Google Analytics + 12 more | Find emails |
| servhost.com.br | #133,346 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| autismpartnershipfoundation.org | #133,362 | Amazon Route 53, Google AMP, Google AdSense + 12 more | Find emails |
| mcdaniel.edu | #133,386 | Azure DNS, ConsentMo, Drupal + 8 more | Find emails |
| mensvault.men | #133,400 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| bookmarking.win | #133,404 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| tourismato.cz | #133,427 | Cloudflare, Cloudflare edge/CDN, Fancybox + 11 more | Find emails |
| jazzpharma.com | #133,441 | Adobe Experience Cloud (Launch), Adobe Fonts (Typekit), DigiCert + 12 more | Find emails |
| zgaqyj.org.cn | #133,450 | ASP.NET, Bootstrap, DigiCert + 5 more | Find emails |
| craigmurray.org.uk | #133,461 | Cloudflare, Cloudflare edge/CDN, Disqus + 12 more | Find emails |
| thirdeyecomics.com | #133,462 | All in One SEO, Cloudflare, Cloudflare Bot Management + 8 more | Find emails |
| olympus-global.com | #133,562 | Adobe Experience Cloud (Launch), Google Fonts, Google Hosted Libraries + 4 more | Find emails |
| witf.org | #133,621 | Amazon Route 53, Chartbeat, CrazyEgg + 12 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →