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 |
|---|---|---|---|
| bookmarks4.men | #138,654 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| rci.co.za | #138,665 | ASP.NET, Akamai Edge DNS, Akamai edge/CDN + 12 more | Find emails |
| fgu.edu.tw | #138,668 | Font Awesome, Google Fonts, Let's Encrypt + 7 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| socialevity.com | #138,707 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| modmc.net | #138,711 | Bootstrap, Google Tag Manager, Let's Encrypt + 7 more | Find emails |
| wigan.gov.uk | #138,712 | ASP.NET, AddThis, Adobe Fonts (Typekit) + 11 more | Find emails |
| doria.fi | #138,783 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| matc.edu | #138,800 | Amazon (ACM), Amazon CloudFront, Amazon S3 + 10 more | Find emails |
| glyphicons.com | #138,843 | Google Analytics, Google Hosted Libraries, Google Tag Manager + 5 more | Find emails |
| austinregionalclinic.com | #138,930 | ASP.NET, Cloudflare edge/CDN, Google Maps + 4 more | Find emails |
| niigata-kankou.or.jp | #138,955 | Adobe Fonts (Typekit), Apache, Bootstrap + 12 more | Find emails |
| redrakegaming.com | #138,967 | Bootstrap, Cloudflare edge/CDN, Google Trust Services + 4 more | Find emails |
| imco.nl | #138,992 | Bootstrap, Font Awesome, Google Fonts + 7 more | Find emails |
| andreasviklund.com | #139,017 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| highkeysocial.com | #139,039 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| hentai44.com | #139,065 | Cloudflare, Cloudflare edge/CDN, Fancybox + 8 more | Find emails |
| nordicweb.com | #139,079 | DigiCert, Foundation, Nginx + 3 more | Find emails |
| onlinefussballmanager.de | #139,118 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 14 more | Find emails |
| lovebookmark.win | #139,149 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| popsike.com | #139,192 | Apache, Bootstrap, Font Awesome + 11 more | Find emails |
| instapages.stream | #139,208 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| reallivesocial.com | #139,216 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| riverscasino.com | #139,286 | Amazon CloudFront, Amazon S3, Cloudflare + 7 more | Find emails |
| sparxsocial.com | #139,292 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| webookmarks.com | #139,317 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 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 →