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 |
|---|---|---|---|
| vidri.com.sv | #296,286 | Cloudflare, Cloudflare Bot Management, Cloudflare Web Analytics + 11 more | Find emails |
| history.org.uk | #296,342 | ASP.NET, Apache, Cloudflare Bot Management + 5 more | Find emails |
| directvpr.com | #296,347 | ASP.NET, Amazon CloudFront, Amazon Route 53 + 15 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| holyrood.com | #296,381 | ASP.NET, Adobe Fonts (Typekit), DoubleClick (Google Ads) + 12 more | Find emails |
| paradisecaycuma.com | #296,396 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| dive-for-fun.com | #296,420 | Apache, Sectigo, WordPress + 1 more | Find emails |
| stadthalle.com | #296,427 | Apache, Google Tag Manager, Matomo + 3 more | Find emails |
| preiswert-uebernachten.de | #296,463 | Bootstrap, CookieFirst, Matomo + 5 more | Find emails |
| wjbrands.com | #296,581 | Baidu Analytics, Baidu Maps, Bootstrap + 6 more | Find emails |
| fsbpt.org | #296,612 | ASP.NET, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| clubjouet.com | #296,638 | ASP.NET, Bootstrap, Cloudflare + 16 more | Find emails |
| alumnihall.com | #296,661 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| forumgratuit.org | #296,748 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| otsuka-us.com | #296,762 | Adobe Experience Cloud (Launch), Adobe Fonts (Typekit), ConsentMo + 13 more | Find emails |
| krudor.ru | #296,817 | Bitrix, Bootstrap, Fancybox + 9 more | Find emails |
| thinkwell.global | #296,889 | Adobe Fonts (Typekit), Backbone.js, Bootstrap + 19 more | Find emails |
| mbs.gov.my | #297,001 | Apache, Bootstrap, DigiCert + 10 more | Find emails |
| degentevakana.com | #297,147 | Google AdSense, Google Analytics, Google Fonts + 10 more | Find emails |
| mr-daten-shop.de | #297,194 | Google Analytics, Let's Encrypt, OpenResty + 3 more | Find emails |
| vbeltguys.com | #297,263 | Cloudflare edge/CDN, Google Ads Conversion, Google Analytics + 13 more | Find emails |
| nic.flowers | #297,366 | Google Tag Manager, Let's Encrypt, Mailchimp + 2 more | Find emails |
| directory-legit.com | #297,405 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| mibaby.de | #297,512 | DigiCert, Express, Font Awesome + 10 more | Find emails |
| lakewood.org | #297,519 | Adobe Fonts (Typekit), Akamai edge/CDN, Akamai mPulse + 6 more | Find emails |
| aran.com | #297,577 | BigCommerce, Bootstrap, Cloudflare Bot Management + 17 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →