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 |
|---|---|---|---|
| hauppauge.com | #169,761 | Apache, Fancybox, Google Analytics + 5 more | Find emails |
| seriousmd.com | #169,762 | ASP.NET, AppsFlyer, Bootstrap + 19 more | Find emails |
| marko.by | #169,793 | Nginx, PHP, Telegram + 1 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| itel-life.com |
| #169,803 |
| AOS, Amazon (ACM), Amazon CloudFront + 8 more |
| Find emails |
| inta.gob.ar | #169,826 | Bootstrap, Cloudflare edge/CDN, Drupal + 10 more | Find emails |
| cervia.com | #169,869 | ASP.NET, Bootstrap, Fancybox + 9 more | Find emails |
| cctld.uz | #169,892 | Bootstrap, Font Awesome, Nginx + 3 more | Find emails |
| randstad.com.ar | #169,907 | ASP.NET, Amazon (ACM), Amazon CloudFront + 13 more | Find emails |
| richmondbizsense.com | #169,939 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 16 more | Find emails |
| healthmap.org | #169,977 | Amazon (ACM), Amazon Route 53, Fancybox + 7 more | Find emails |
| paulaner-fankorken.de | #169,983 | ASP.NET, Cookiebot, Let's Encrypt + 2 more | Find emails |
| passionford.com | #169,993 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 16 more | Find emails |
| transformerland.com | #170,002 | Cloudflare, Cloudflare edge/CDN, GoDaddy Seal + 13 more | Find emails |
| sasktel.com | #170,010 | Adobe Experience Cloud (Launch), Adobe Fonts (Typekit), DigiCert + 9 more | Find emails |
| briskoda.net | #170,082 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 8 more | Find emails |
| washoecounty.gov | #170,086 | AddThis, Divi, Font Awesome + 16 more | Find emails |
| langleyfcu.org | #170,105 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| igaku-shoin.co.jp | #170,131 | Azure DNS, Google Fonts, Google Tag Manager + 6 more | Find emails |
| regal.co.jp | #170,164 | A8.net, Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| ungrandmarche.fr | #170,187 | Bootstrap, Crisp, DigiCert + 13 more | Find emails |
| bookmarkick.com | #170,266 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| geoportal-krajowy.pl | #170,306 | Astro, Google Fonts, Google Tag Manager + 2 more | Find emails |
| goserviceline.com | #170,338 | Amazon (ACM), Amazon CloudFront, Amazon S3 + 5 more | Find emails |
| optimusbookmarks.com | #170,346 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| themes4wp.com | #170,378 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →