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 |
|---|---|---|---|
| wargamesfoundry.com | #524,532 | Cloudflare edge/CDN, Google Fonts, Let's Encrypt + 8 more | Find emails |
| energyglobal.com | #524,581 | ASP.NET, Bootstrap, Font Awesome + 11 more | Find emails |
| blzk.de | #524,592 | DigiCert, Font Awesome, Matomo + 2 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| cfess.org.br | #524,701 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| duet.ac.bd | #524,706 | Bootstrap, Cloudflare, Font Awesome + 3 more | Find emails |
| enagicwebsystem.com | #524,883 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| 24news.world | #524,905 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| candydoll.al | #524,961 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 4 more | Find emails |
| windstreamcommunication.net | #525,026 | Bootstrap, Font Awesome, Laravel + 6 more | Find emails |
| ishtadevata.com | #525,045 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| 889992774.xyz | #525,050 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| reckonone.com | #525,136 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| venalis.be | #525,195 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 8 more | Find emails |
| fiberfirst.com | #525,252 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 16 more | Find emails |
| my-take.com | #525,322 | AdRoll, Amazon (ACM), Amazon Route 53 + 10 more | Find emails |
| activo.mx | #525,368 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| vinsalsace.com | #525,385 | Adobe Fonts (Typekit), Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| mtx.com | #525,389 | ASP.NET, Fancybox, Font Awesome + 10 more | Find emails |
| dbcart.ir | #525,407 | Bootstrap, Font Awesome, Laravel + 6 more | Find emails |
| shopu.ro | #525,415 | Bootstrap, ConsentMo, Font Awesome + 9 more | Find emails |
| examcollectionpass.com | #525,517 | Bootstrap, Chart.js, Cloudflare + 10 more | Find emails |
| theelectricbikeshop.co.uk | #525,575 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| jobsharmony.com | #525,618 | Font Awesome, Google Fonts, Google Trust Services + 3 more | Find emails |
| guitarmagazine.jp | #525,663 | Amazon Route 53, Auth0, Fancybox + 9 more | Find emails |
| inforoutefpt.org | #526,064 | ASP.NET, Bootstrap, Cloudflare + 11 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 →