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 |
|---|---|---|---|
| tiptravel.sk | #503,078 | ASP.NET, Google Ads Conversion, Google Analytics + 8 more | Find emails |
| clsa.com | #503,092 | Akamai Edge DNS, DigiCert, Font Awesome + 5 more | Find emails |
| heart-music.com | #503,111 | AngularJS, Bootstrap, Cloudflare edge/CDN + 10 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| bioparc-zoo.fr | #503,139 | Bootstrap, Font Awesome, Google Analytics + 12 more | Find emails |
| neverenoughauto.com | #503,253 | Affirm, Amazon (ACM), Amazon Route 53 + 12 more | Find emails |
| tecniplast.it | #503,286 | Font Awesome, Google Analytics, Google Fonts + 4 more | Find emails |
| luxurydentist.com.tr | #503,354 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 5 more | Find emails |
| retentionly.io | #503,375 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| floridatheatre.com | #503,407 | Amazon Route 53, Fastly, Font Awesome + 6 more | Find emails |
| confagricoltura.it | #503,417 | Google Fonts, Google Tag Manager, Microsoft 365 + 1 more | Find emails |
| pravyprostor.net | #503,426 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 6 more | Find emails |
| davivienda.com.pa | #503,432 | Amazon Route 53, Cloudflare Bot Management, Cloudflare Web Analytics + 5 more | Find emails |
| bodyworlds.com | #503,438 | ConsentMo, Google Tag Manager, Let's Encrypt + 7 more | Find emails |
| agendatellme.com.br | #503,548 | Cloudflare, Font Awesome, Google Ads Conversion + 7 more | Find emails |
| links2directory.com | #503,714 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| 889992872.xyz | #503,769 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| scrumstudy.com | #503,809 | ASP.NET, Cloudflare, DigiCert + 5 more | Find emails |
| superrichthailand.com | #503,812 | Amazon Route 53, AngularJS, Bootstrap + 10 more | Find emails |
| patriotleague.org | #503,833 | ASP.NET, Cloudflare, Google Analytics + 6 more | Find emails |
| whitecross.co.jp | #503,933 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| wholehost-server.com | #503,941 | AOS, Google Analytics, Google Tag Manager + 5 more | Find emails |
| jcnnewswire.com | #503,972 | ASP.NET, Bootstrap, Cloudflare + 8 more | Find emails |
| openvino.ai | #504,002 | Coveo, Owl Carousel, Scene7 (Adobe Dynamic Media) + 5 more | Find emails |
| loutec.com | #504,005 | Cloudflare, Cloudflare edge/CDN, Fancybox + 14 more | Find emails |
| ccus.jp | #504,109 | Bootstrap, Font Awesome, Google Analytics + 8 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 →