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 |
|---|---|---|---|
| vermontbiz.com | #165,360 | Broadstreet, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| ticketfairy.com | #165,388 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| uoanbar.edu.iq | #165,437 | Apache, Bootstrap, Cloudflare + 11 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| case.org | #165,438 | ASP.NET, Adobe Fonts (Typekit), Azure API Management + 15 more | Find emails |
| o2-graphics.fr | #165,467 | Let's Encrypt, Nginx, jQuery | Find emails |
| dolomitenstadt.at | #165,476 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 9 more | Find emails |
| onlybookmarkings.com | #165,505 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| oribi.io | #165,587 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 14 more | Find emails |
| gakujo.ne.jp | #165,657 | AOS, ASP.NET, Adobe Fonts (Typekit) + 18 more | Find emails |
| thesocialdelight.com | #165,676 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| boyztube.com | #165,698 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| mawartoto.com | #165,701 | Bootstrap, Cloudflare, Cloudflare Bot Management + 13 more | Find emails |
| c-prot.com | #165,719 | ASP.NET, AngularJS, Bootstrap + 14 more | Find emails |
| wisuki.com | #165,809 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| pageoftoday.com | #165,816 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| msfaccess.org | #165,819 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 12 more | Find emails |
| domcavalo.com | #165,829 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| ok-social.com | #165,852 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| devletarsivleri.gov.tr | #165,946 | ASP.NET, DigiCert, Font Awesome + 8 more | Find emails |
| bookmarkgenius.com | #166,001 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| fisherhouse.org | #166,007 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 11 more | Find emails |
| social-galaxy.com | #166,016 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| ronherman.jp | #166,018 | AB Tasty, Adobe Fonts (Typekit), Fastly + 13 more | Find emails |
| admiralbookmarks.com | #166,027 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| lufa.com | #166,043 | Apache, Bootstrap, Cloudflare + 14 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 →