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 |
|---|---|---|---|
| caixabank.cat | #365,103 | Bootstrap, Cloudflare edge/CDN, Tealium + 1 more | Find emails |
| terrabase.us | #365,122 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| focuspathway.ca | #365,136 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| metaslotshouse.nl | #365,157 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| cao.ie | #365,172 | Foundation, Microsoft 365, jQuery | Find emails |
| nganluong.vn | #365,238 | Bootstrap, Chart.js, Cloudflare + 19 more | Find emails |
| ultimateclubexpress.com | #365,252 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| loscarabeo.com | #365,295 | Cloudflare edge/CDN, Google Tag Manager, Google Trust Services + 5 more | Find emails |
| lumensignal.de | #365,302 | Bootstrap, Contabo Object Storage, Fancybox + 6 more | Find emails |
| digitalslotsspace.nl | #365,357 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| metawinsdesk.nl | #365,385 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| articleforge.com | #365,417 | Amazon Route 53, Apache, Bootstrap + 14 more | Find emails |
| webcloudcentral.com | #365,467 | Font Awesome, Foundation, Google Fonts + 7 more | Find emails |
| modernpeak.us | #365,477 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| worldprimeonline.co.uk | #365,481 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| urbanway.us | #365,519 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| zenserviceengine.nl | #365,529 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| cyberclubspace.nl | #365,584 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| spincorespins.co.uk | #365,597 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| flexpointway.us | #365,679 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| deutsches-krankenhaus-verzeichnis.de | #365,687 | Bootstrap, Cookiebot, DigiCert + 9 more | Find emails |
| kuban-online.ru | #365,698 | Google Fonts, Let's Encrypt, Nginx + 2 more | Find emails |
| purebridge.de | #365,718 | Bootstrap, Contabo Object Storage, Fancybox + 6 more | Find emails |
| pulsegamblezone.com | #365,723 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| suzuki.com.ph | #365,806 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 19 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 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →