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 |
|---|---|---|---|
| izmir.bel.tr | #176,584 | ASP.NET, Bootstrap, Font Awesome + 7 more | Find emails |
| socialmediaentry.com | #176,604 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| 99pledges.com | #176,619 | Cloudflare Bot Management, Cloudflare edge/CDN, Font Awesome + 16 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| riigikogu.ee | #176,664 | Cloudflare Bot Management, Cloudflare edge/CDN, Foundation + 6 more | Find emails |
| usawatchdog.com | #176,672 | All in One SEO, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| bookmarkzap.com | #176,737 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| mygiftcard.it | #176,742 | Apache, Font Awesome, Foundation + 13 more | Find emails |
| logmeinrescue-enterprise.com | #176,752 | Akamai Edge DNS, DigiCert, Segment + 2 more | Find emails |
| townsquaremedia.com | #176,771 | AOS, Express, Font Awesome + 14 more | Find emails |
| wizja.net | #176,787 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| bookmarkspiral.com | #176,843 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| housefun.com.tw | #176,862 | ASP.NET, Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| autohaus.de | #176,869 | ASP.NET, Azure API Management, DigiCert + 9 more | Find emails |
| sefton.gov.uk | #176,910 | ASP.NET, Bootstrap, Cloudflare Bot Management + 9 more | Find emails |
| brightbookmarks.com | #176,970 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| craftbeer.com | #176,972 | Bootstrap, Cloudflare Turnstile, CookieYes + 20 more | Find emails |
| russianflirting.com | #177,041 | Cloudflare, Google AdSense, Google Analytics + 10 more | Find emails |
| kirken.no | #177,112 | Azure API Management, Cloudflare edge/CDN, Cookie Information + 5 more | Find emails |
| arn.se | #177,149 | ASP.NET, BrowseAloud, Cookie Information + 4 more | Find emails |
| tv3.cat | #177,300 | Adobe Experience Cloud (Launch), Amazon Route 53, Bootstrap + 3 more | Find emails |
| fvdspeeddial.com | #177,305 | Amazon (ACM), Amazon Route 53, Google Analytics + 3 more | Find emails |
| britishhorseracing.com | #177,357 | AngularJS, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| poliklinika-sebetic.hr | #177,369 | Fancybox, Font Awesome, Google Analytics + 8 more | Find emails |
| prillante.com | #177,378 | Fancybox, Font Awesome, Google Fonts + 8 more | Find emails |
| theaustonian.com | #177,386 | Apache, Font Awesome, Google Ads Conversion + 8 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 →