JavaScript Library & Framework
26,986 of the 1,000,000 top sites in our Tranco top-1M census run Modernizr (2.7%). 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 |
|---|---|---|---|
| ylib.com | #330,649 | Express, Fancybox, Font Awesome + 9 more | Find emails |
| bangkoksync.com | #330,653 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 6 more | Find emails |
| electrocasnicedelux.ro | #330,668 | Fancybox, Google Ads Conversion, Google Analytics + 7 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| tennispro.eu | #330,689 | Cloudflare, Cloudflare edge/CDN, Fancybox + 6 more | Find emails |
| diariodeideasdigital.mx | #330,697 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| nextclubworld.com | #330,790 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| lightwaredirect.com | #330,805 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| platinumcasinoplus.com | #330,895 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| team.de | #330,902 | Let's Encrypt, Matomo, Microsoft 365 + 7 more | Find emails |
| hobbystock.jp | #330,923 | Amazon (ACM), Amazon Route 53, Apache + 11 more | Find emails |
| aksorn.com | #330,950 | AOS, Cloudflare, Cloudflare Web Analytics + 24 more | Find emails |
| nspower.ca | #331,008 | ASP.NET, Azure DNS, Azure Front Door + 14 more | Find emails |
| indieserve.net | #331,027 | Apache, Fancybox, Font Awesome + 5 more | Find emails |
| waitlist.me | #331,077 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| introvert.bz | #331,099 | Chatra, Google Analytics, Google Hosted Libraries + 8 more | Find emails |
| premisehealth.com | #331,140 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 22 more | Find emails |
| primebettinggroup.nl | #331,142 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| sophus.com.br | #331,184 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 20 more | Find emails |
| wingscorp.com | #331,206 | Amazon CloudFront, Amazon Route 53, Apache + 5 more | Find emails |
| tokyonightstyle.com | #331,244 | Apache, Bootstrap, Google Analytics + 8 more | Find emails |
| cafe-extrablatt.de | #331,384 | Bootstrap, Font Awesome, Laravel + 7 more | Find emails |
| alpenverein-muenchen-oberland.de | #331,446 | Apache, DigiCert, Slick Carousel + 1 more | Find emails |
| rapidrouletteonline.com | #331,509 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| stayfriends.ch | #331,512 | Bootstrap, Font Awesome, Google Fonts + 6 more | Find emails |
| kaagent.be | #331,530 | ASP.NET, Azure API Management, Azure Front Door + 13 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →