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 |
|---|---|---|---|
| notarypublicunderwriters.com | #492,148 | Bootstrap, Joomla, Sucuri + 3 more | Find emails |
| giswatch.org | #492,160 | Drupal, Let's Encrypt, Matomo + 2 more | Find emails |
| ricehvacservices.com | #492,192 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| myport.com.tr | #492,215 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| intersys.uy | #492,228 | Bootstrap, Font Awesome, Foundation + 9 more | Find emails |
| antkh.com | #492,416 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| mailopost.ru | #492,445 | Bootstrap, DDoS-Guard, Google Fonts + 6 more | Find emails |
| bilgalleri.dk | #492,685 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 7 more | Find emails |
| britedirectory.com | #492,689 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| problogdirectory.com | #492,722 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| rompetrol.ro | #492,824 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 11 more | Find emails |
| bridgestonearena.com | #492,951 | Fastly, Font Awesome, Google Analytics + 5 more | Find emails |
| vesuvius.com | #493,011 | Azure DNS, DigiCert, Google Tag Manager + 3 more | Find emails |
| chat2desk.kz | #493,015 | Bootstrap, Cloudflare, Fancybox + 8 more | Find emails |
| tiposinfames.com | #493,047 | Django, Google Analytics, Google Fonts + 3 more | Find emails |
| winvault.de | #493,113 | Bootstrap, Fancybox, Let's Encrypt + 4 more | Find emails |
| bola.cz | #493,164 | Bootstrap, Google Tag Manager, Let's Encrypt + 4 more | Find emails |
| camsecure.co.uk | #493,197 | Google AdSense, Google Analytics, Let's Encrypt + 1 more | Find emails |
| pureftpd.org | #493,204 | Font Awesome, Hugo, Let's Encrypt + 2 more | Find emails |
| paystix.ru | #493,210 | ASP.NET, Bootstrap, Font Awesome + 4 more | Find emails |
| globalcio.ru | #493,219 | Font Awesome, Google Fonts, Let's Encrypt + 6 more | Find emails |
| seachem.com | #493,364 | Bootstrap, Font Awesome, Google Analytics + 11 more | Find emails |
| jiuzyoung.com | #493,467 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| lojaagropecuaria.pt | #493,477 | Bootstrap, Font Awesome, Google Analytics + 9 more | Find emails |
| wccsolar.net | #493,538 | Bootstrap, Font Awesome, Google Fonts + 6 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 →