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 |
|---|---|---|---|
| forumczech.com | #548,747 | Bootstrap, Font Awesome, Let's Encrypt + 1 more | Find emails |
| melodiabisera.ru | #548,813 | Fancybox, Font Awesome, Google Tag Manager + 4 more | Find emails |
| javan-musics.com | #548,846 | Let's Encrypt, WordPress, Yoast SEO | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| parsiday.com |
| #548,854 |
| Let's Encrypt, WordPress |
| Find emails |
| dwbn.org | #548,926 | Adobe Fonts (Typekit), Bootstrap, Cloudflare edge/CDN + 6 more | Find emails |
| dcrustedp.in | #548,952 | Bootstrap, Google Analytics, Let's Encrypt + 4 more | Find emails |
| radioenergy.bg | #549,051 | Bootstrap, Fancybox, Font Awesome + 10 more | Find emails |
| kimcblog.com | #549,117 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 3 more | Find emails |
| openrocket.info | #549,282 | Bootstrap, Fastly, Font Awesome + 5 more | Find emails |
| lawcareers.net | #549,284 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| henanfood.net | #549,399 | Nginx, jQuery | Find emails |
| tecweb-us.com | #549,562 | Google Analytics, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| premiersoftware.co.uk | #549,695 | Adobe Fonts (Typekit), Amazon CloudFront, Cloudflare + 7 more | Find emails |
| zixportal.com | #549,726 | jQuery | Find emails |
| lupicia.co.jp | #549,741 | Amazon CloudFront, Amazon Route 53, Foundation + 5 more | Find emails |
| intti.fi | #549,803 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| msrit.edu | #549,856 | Bootstrap, Cloudflare, Font Awesome + 7 more | Find emails |
| ciep.uk | #549,877 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| vibrant.org | #549,888 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| diariodegastronomia.com | #549,901 | Font Awesome, Google Analytics, Google Fonts + 6 more | Find emails |
| aeon-ryukyu.jp | #549,933 | Google Ads Conversion, Google Analytics, Google Fonts + 7 more | Find emails |
| delimarketnews.com | #550,070 | Cloudflare, Cloudflare edge/CDN, Drupal + 8 more | Find emails |
| wpgholdings.com | #550,082 | Bootstrap, Google Analytics, Google Cloud DNS + 5 more | Find emails |
| unitehere.org | #550,108 | Cloudflare Bot Management, Cloudflare edge/CDN, Font Awesome + 10 more | Find emails |
| laindiaherbsandspices.com | #550,116 | Bootstrap, Fancybox, Font Awesome + 10 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 →