JavaScript Library & Framework
27,702 of the 1,000,000 top sites in our Tranco top-1M census run Modernizr (2.8%). 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 |
|---|---|---|---|
| tehno-mag.hr | #367,293 | Cloudflare, Cloudflare edge/CDN, Cookiebot + 10 more | Find emails |
| serpsdirectory.com | #367,332 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| diariodeideasvision.mx | #367,360 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| alphaclubdaily.nl | #367,378 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| sibiu.ro | #367,388 | Apache, Bootstrap, Font Awesome + 7 more | Find emails |
| wpja.com | #367,396 | Drupal, Slick Carousel, Stripe + 2 more | Find emails |
| uty.ac.id | #367,467 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| frauenselbsthilfe.de | #367,468 | Bootstrap, Let's Encrypt, Microsoft 365 + 5 more | Find emails |
| zenlogic.us | #367,522 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| dropsend.com | #367,524 | Amazon Route 53, Apache, Bootstrap + 16 more | Find emails |
| visionblackjack340.com | #367,534 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| kansai.co.jp | #367,545 | GSAP, Google Tag Manager, Nginx + 6 more | Find emails |
| hllnl.com | #367,560 | AOS, ASP.NET, Backbone.js + 14 more | Find emails |
| ulstercountyny.gov | #367,578 | ASP.NET, Akamai edge/CDN, Akamai mPulse + 10 more | Find emails |
| grabcaruber.com | #367,589 | Azure DNS, Google Analytics, Google Fonts + 13 more | Find emails |
| silverroyalplatform.com | #367,627 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| harriscountyso.org | #367,640 | ASP.NET, Bootstrap, DigiCert + 12 more | Find emails |
| usalesiana.edu.bo | #367,647 | Bootstrap, Font Awesome, Google Fonts + 7 more | Find emails |
| deltagambleonline.nl | #367,654 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| fusionbetonline.nl | #367,708 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| elsakerhetsverket.se | #367,721 | ASP.NET, Azure API Management, Cookie Information + 2 more | Find emails |
| deltadentalva.com | #367,723 | Amazon (ACM), ArtsAI (Adxcel), Bootstrap + 9 more | Find emails |
| ivyleague.com | #367,734 | ASP.NET, Adobe Fonts (Typekit), Google Analytics + 8 more | Find emails |
| nafi.ru | #367,736 | Bitrix, Google Fonts, Nginx + 5 more | Find emails |
| directoryhand.com | #367,801 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 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 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →