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 |
|---|---|---|---|
| gccassociation.org | #146,539 | Bootstrap, Font Awesome, Google Analytics + 12 more | Find emails |
| webcastlist.com | #146,586 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| socialfactories.com | #146,601 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| easycard.com.tw | #146,671 | Google Analytics, Google Maps, Google Tag Manager + 5 more | Find emails |
| cwaf.jp | #146,702 | Google Analytics, Google Hosted Libraries, Google Tag Manager + 8 more | Find emails |
| vstu.ru | #146,714 | Bitrix, Fancybox, Google Analytics + 7 more | Find emails |
| sociallawy.com | #146,724 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| haiwangweb.com | #146,738 | 51.la, Bootstrap, Chatra + 12 more | Find emails |
| htmedia.in | #146,747 | Akamai Edge DNS, Apache, DigiCert + 11 more | Find emails |
| trackbookmark.com | #146,765 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| ingenta.com | #146,779 | Apache, Bluesky, Fancybox + 13 more | Find emails |
| cosibella.pl | #146,840 | Google Analytics, Google Tag Manager, Meta Pixel + 2 more | Find emails |
| chortle.co.uk | #146,859 | AddThis, AddToAny, Adobe Fonts (Typekit) + 17 more | Find emails |
| as-s.be | #146,892 | All in One SEO, Apache, Google Analytics + 7 more | Find emails |
| federatedlink.com | #146,902 | ASP.NET, Amazon (ACM), Amazon Route 53 + 4 more | Find emails |
| bookmarkity.com | #146,928 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| ntvg.nl | #146,934 | ASP.NET, Adobe Fonts (Typekit), ConsentMo + 6 more | Find emails |
| metro.istanbul | #146,997 | ASP.NET, Bootstrap, Cloudflare + 13 more | Find emails |
| variflight.com | #147,005 | Alibaba Cloud CDN, Alibaba Cloud DNS, Bootstrap + 12 more | Find emails |
| pittsburghmagazine.com | #147,028 | Bootstrap, Broadstreet, Empower Local + 19 more | Find emails |
| unimedcampinas.com.br | #147,037 | ASP.NET, Akamai Edge DNS, Akamai edge/CDN + 9 more | Find emails |
| prothots.com | #147,047 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 8 more | Find emails |
| magazinelib.com | #147,064 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 7 more | Find emails |
| theduran.com | #147,113 | Cloudflare, Font Awesome, Google Fonts + 12 more | Find emails |
| ligafemenil.mx | #147,165 | Amazon Route 53, Bootstrap, DigiCert + 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 →