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 |
|---|---|---|---|
| blisty.cz | #205,875 | Let's Encrypt, Nginx, Ruby on Rails + 1 more | Find emails |
| thebostonpilot.com | #205,923 | ASP.NET, Bootstrap, Font Awesome + 10 more | Find emails |
| abcplus.biz | #206,026 | ASP.NET, AddToAny, Blogger + 9 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| bookmarklayer.com |
| #206,045 |
| Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more |
| Find emails |
| exactlybookmarks.com | #206,062 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| limawebdirectory.com | #206,087 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| tambov.ru | #206,100 | Apache, Bootstrap, Font Awesome + 6 more | Find emails |
| mopita.com | #206,107 | Amazon CloudFront, Amazon Route 53, Apache + 2 more | Find emails |
| punto.hn | #206,121 | Apache, Bootstrap, Cloudflare edge/CDN + 15 more | Find emails |
| cheznoo.net | #206,123 | Apache, Bootstrap, Font Awesome + 10 more | Find emails |
| transferbigfiles.com | #206,131 | Amazon Route 53, Chartbeat, DigiCert + 2 more | Find emails |
| bookmarkprobe.com | #206,149 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| projectlombok.org | #206,235 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 5 more | Find emails |
| esignanywhere.net | #206,237 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 12 more | Find emails |
| passportpro247.com | #206,319 | ASP.NET, Google Tag Manager, NS1 + 3 more | Find emails |
| flic.io | #206,331 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 19 more | Find emails |
| civilsociety.co.uk | #206,373 | Adobe Fonts (Typekit), Bluesky, Bootstrap + 13 more | Find emails |
| clicks9.com | #206,393 | AOS, ASP.NET, Bootstrap + 7 more | Find emails |
| rclgroup.com | #206,397 | ASP.NET, Amazon Route 53, Cloudflare Turnstile + 9 more | Find emails |
| cupidmedia.com | #206,404 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 14 more | Find emails |
| ariestogeljp4.com | #206,462 | Bootstrap, Cloudflare, Cloudflare Bot Management + 14 more | Find emails |
| sdnhm.org | #206,468 | Bootstrap, Font Awesome, Fonts.com + 14 more | Find emails |
| 1st.ir | #206,569 | ASP.NET, Bootstrap, Font Awesome + 5 more | Find emails |
| bookmarkdistrict.com | #206,597 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| primatelabs.com | #206,607 | Amazon Route 53, Fancybox, Feedburner + 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 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →