JavaScript Library & Framework
16,473 of the 965,200 top sites in our Tranco top-1M census run Modernizr (1.7%). 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 |
|---|---|---|---|
| modmingletech.com | #582,231 | AOS, Bootstrap, Cloudflare + 5 more | Find emails |
| itservice.de | #582,307 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| lokmanhekim.edu.tr | #582,595 | Bootstrap, Cloudflare, DigiCert + 9 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| bluestreamacademy.com | #582,643 | ASP.NET, Azure DNS, Cookiebot + 10 more | Find emails |
| kandt-llc.com | #582,695 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| movhuzek.com | #582,696 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 4 more | Find emails |
| rucountry.ru | #582,797 | ASP.NET, Let's Encrypt, cdnjs + 1 more | Find emails |
| wishartlab.com | #583,008 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| vsj.ca | #583,095 | Cloudflare edge/CDN, Font Awesome, Google Ads Conversion + 8 more | Find emails |
| skagennet.dk | #583,119 | Bootstrap, Font Awesome, Google Fonts + 3 more | Find emails |
| mychildsmuseum.org | #583,190 | ASP.NET, Font Awesome, Foundation + 5 more | Find emails |
| corplan.net | #583,234 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| savoie.fr | #583,244 | Bootstrap, DigiCert, Fancybox + 5 more | Find emails |
| welthungerhilfe.org | #583,271 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 3 more | Find emails |
| getraenke-korte.com | #583,304 | Bootstrap, Google Fonts, Let's Encrypt + 4 more | Find emails |
| olimpiasplendid.it | #583,380 | ASP.NET, Adobe Fonts (Typekit), Bootstrap + 8 more | Find emails |
| avenuedesinvestisseurs.fr | #583,448 | Let's Encrypt, Underscore.js, WordPress + 2 more | Find emails |
| novadriveplatform.nl | #583,731 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| osmoseproductions.com | #583,764 | Foundation, Google Analytics, Google Tag Manager + 2 more | Find emails |
| hostmf.com.br | #583,807 | AOS, Bootstrap, Cloudflare + 11 more | Find emails |
| casino-aschaffenburg.de | #583,865 | ConsentMo, Let's Encrypt, Microsoft 365 + 1 more | Find emails |
| omlaw.com | #583,940 | Azure DNS, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| dansk-sommerhusferie.dk | #583,977 | ASP.NET, Bootstrap, DigiCert + 8 more | Find emails |
| tokyohakuzen.co.jp | #584,084 | Amazon (ACM), Amazon CloudFront, Google Analytics + 3 more | Find emails |
| evanevanstours.com | #584,163 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 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 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →