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 |
|---|---|---|---|
| ab2web.com | #529,069 | Bootstrap, Let's Encrypt, Nginx | Find emails |
| truman.gov | #529,231 | ConsentMo, Drupal, Fastly + 7 more | Find emails |
| gue.com | #529,245 | Drupal, Font Awesome, Google Fonts + 4 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| #529,267 |
| Bootstrap, Cloudflare, Cloudflare edge/CDN + 5 more |
| Find emails |
| exponet.ru | #529,280 | Bootstrap, Fancybox, Google Analytics + 3 more | Find emails |
| simpoll.ru | #529,289 | Bootstrap, Chart.js, Cloudflare + 11 more | Find emails |
| tsk.sk | #529,321 | DigiCert, Google Fonts, Meta Pixel + 3 more | Find emails |
| higashimaru.co.jp | #529,413 | Fancybox, Google Ads Conversion, Google Tag Manager + 4 more | Find emails |
| bigeast.com | #529,491 | ASP.NET, Google Analytics, Google Fonts + 7 more | Find emails |
| bitamin.gr | #529,516 | Bootstrap, CookieYes, Fancybox + 11 more | Find emails |
| topfiveoffers.com | #529,564 | Amazon Route 53, Google Tag Manager, Let's Encrypt + 1 more | Find emails |
| snms.net.pk | #529,568 | Bootstrap, Cloudflare, Font Awesome + 3 more | Find emails |
| silverstarbrands.com | #529,641 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| kawaiipenshop.com | #529,644 | Cloudflare edge/CDN, Google Cloud DNS, Google Fonts + 9 more | Find emails |
| wol.de | #529,754 | AOS, Bootstrap, Font Awesome + 2 more | Find emails |
| thenewswire.com | #529,768 | Bootstrap, Chart.js, Font Awesome + 10 more | Find emails |
| fixar.de | #529,931 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| urlmedya.com | #530,424 | Bootstrap, Font Awesome, Google Analytics + 7 more | Find emails |
| spreewald-info.de | #530,433 | Bootstrap, Font Awesome, Google Tag Manager + 6 more | Find emails |
| torontocentralhealthline.ca | #530,436 | ASP.NET, Google Analytics, Google Cloud DNS + 3 more | Find emails |
| uvci.edu.ci | #530,459 | Bootstrap, Font Awesome, Let's Encrypt + 5 more | Find emails |
| artworksforchange.org | #530,581 | Font Awesome, Google Analytics, Google Fonts + 7 more | Find emails |
| mindbuzz.cz | #530,595 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| unitystampco.com | #530,630 | BigCommerce, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| jpckemang.com | #530,643 | Bootstrap, Font Awesome, Google Fonts + 7 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 →