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 |
|---|---|---|---|
| bookmarkforce.com | #175,365 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| ph9.co.uk | #175,368 | Bootstrap, Font Awesome, Google Analytics + 10 more | Find emails |
| socialbuzzfeed.com | #175,384 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| ict.ac.cn | #175,409 | Bootstrap, Font Awesome, jQuery | Find emails |
| zhonganjianli.com | #175,509 | Microsoft IIS, jQuery | Find emails |
| indibloghub.com | #175,529 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| kunstmuseumbasel.ch | #175,561 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| klabhouse.com | #175,571 | Bootstrap, Google Fonts, Let's Encrypt + 5 more | Find emails |
| fortcollins.gov | #175,578 | Akamai edge/CDN, Akamai mPulse, Google Fonts + 5 more | Find emails |
| shuffleandcutgames.co.nz | #175,666 | Bootstrap, Cloudflare edge/CDN, Font Awesome + 14 more | Find emails |
| cryptocoinsad.com | #175,680 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| inspera.com | #175,698 | Amazon Route 53, Apache, Cloudflare Bot Management + 13 more | Find emails |
| mysocialfeeder.com | #175,723 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| alexandar-cosmetics.com | #175,726 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 4 more | Find emails |
| socialinplace.com | #175,756 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| umos.ru | #175,769 | Bootstrap, Google Hosted Libraries, Let's Encrypt + 2 more | Find emails |
| bookmarkoffire.com | #175,834 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| webnowmedia.com | #175,858 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| openrouteservice.org | #175,866 | Apache, Bootstrap, DataTables + 12 more | Find emails |
| hagroup.com | #175,885 | Dynatrace, Google Analytics, Google Fonts + 3 more | Find emails |
| glendaleaz.com | #175,924 | Akamai edge/CDN, Akamai mPulse, Google Fonts + 5 more | Find emails |
| canoas.rs.gov.br | #175,969 | AOS, AddToAny, DigiCert + 13 more | Find emails |
| bookmark-nation.com | #175,986 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| unchainedcrypto.com | #176,002 | Beehiiv, Chartbeat, Cloudflare + 21 more | Find emails |
| ordoro.com | #176,011 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 25 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 →