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 |
|---|---|---|---|
| myserver.bg | #557,107 | Bootstrap, Font Awesome, Google Analytics + 2 more | Find emails |
| gofullframe.com | #557,112 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| yiassou.gr | #557,224 | Bootstrap, Fancybox, Font Awesome + 4 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| elgiultra.com | #557,346 | Bootstrap, Fancybox, Font Awesome + 12 more | Find emails |
| athenslab.gr | #557,350 | Font Awesome, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| tupuedes.cl | #557,391 | Google Ads Conversion, Google Analytics, Google Fonts + 6 more | Find emails |
| optimax-bd.com | #557,412 | Bootstrap, Google Fonts, Joomla + 4 more | Find emails |
| icallhelpline.org | #557,433 | Font Awesome, Google Analytics, Google Fonts + 5 more | Find emails |
| harnett.org | #557,457 | Azure DNS, Bootstrap, Chart.js + 7 more | Find emails |
| servidorblindado.com | #557,518 | Bootstrap, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| endseurope.com | #557,611 | ASP.NET, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| stellarbonushub.nl | #557,644 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| kiastuff.com | #557,676 | BigCommerce, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| thesilverline.org.uk | #557,691 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 3 more | Find emails |
| uber-arena.de | #558,124 | Azure DNS, Fastly, Font Awesome + 10 more | Find emails |
| zoo-mulhouse.com | #558,134 | Font Awesome, Google Analytics, Google Tag Manager + 9 more | Find emails |
| droid-fun.com | #558,208 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| vitalness.jp | #558,226 | DigiCert, Google Ads Conversion, Google Analytics + 6 more | Find emails |
| arthurjohnson.co.uk | #558,262 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| edx-video.net | #558,367 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| gtlc.com | #558,398 | DigiCert, Ensighten, Foundation + 10 more | Find emails |
| mcgtn.org | #558,410 | Bootstrap, Cloudflare, Font Awesome + 12 more | Find emails |
| waterdamagerestorationcarrolltontx.us | #558,411 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| bandg.com | #558,432 | Bootstrap, Cloudflare, Cloudflare Bot Management + 7 more | Find emails |
| t4c-neerya.com | #558,488 | Google Analytics, Google Fonts, Let's Encrypt + 3 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 →