JavaScript Library & Framework
26,986 of the 1,000,000 top sites in our Tranco top-1M census run Modernizr (2.7%). 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 |
|---|---|---|---|
| primeroulettestation.com | #343,026 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| summitplace.nl | #343,062 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| hx-technology.net | #343,074 | ASP.NET, Bootstrap, Microsoft IIS + 1 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| kolumbus.no | #343,098 | Bootstrap, Cloudflare, Font Awesome + 13 more | Find emails |
| k12system.com | #343,143 | Cloudflare edge/CDN, Google Analytics, Google Trust Services + 4 more | Find emails |
| pokaa.fr | #343,165 | Adobe Fonts, Adobe Fonts (Typekit), Cloudflare + 8 more | Find emails |
| vectorhouse.nl | #343,186 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| localgov.co.uk | #343,198 | Amazon CloudFront, Bootstrap, DoubleClick (Google Ads) + 10 more | Find emails |
| polsinelli.it | #343,216 | ConsentMo, Cookiebot, Google Tag Manager + 8 more | Find emails |
| sasaki.com | #343,239 | Algolia, Amazon Route 53, Cloudflare Bot Management + 10 more | Find emails |
| strideplace.nl | #343,272 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| housing-ombudsman.org.uk | #343,273 | Civic Cookie Control, Google Analytics, Google Tag Manager + 7 more | Find emails |
| spiritone.com | #343,325 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 6 more | Find emails |
| redondo.org | #343,362 | Bootstrap, Font Awesome, Google Analytics + 8 more | Find emails |
| glowingdirectory.com | #343,416 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| landolakesinc.com | #343,485 | Adobe Experience Cloud (Launch), Font Awesome, Foundation + 11 more | Find emails |
| adjustrite.com | #343,515 | ASP.NET, Amazon Route 53, DigiCert + 5 more | Find emails |
| fairparken.com | #343,563 | Apache, Cloudflare edge/CDN, Contao + 11 more | Find emails |
| primejackpotgroup.nl | #343,703 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| xronos.gr | #343,715 | AddToAny, Bootstrap, Cloudflare + 16 more | Find emails |
| nusabali.com | #343,718 | AddToAny, Bootstrap, Cloudflare + 13 more | Find emails |
| zgovps.com | #343,733 | All in One SEO, Bootstrap, Cloudflare + 12 more | Find emails |
| colosseumtheater.de | #343,751 | Bootstrap, Clicky, Cloudflare + 11 more | Find emails |
| cave.co.jp | #343,902 | Adobe Fonts (Typekit), Google Analytics, Google Fonts + 10 more | Find emails |
| bluemts.com.au | #343,926 | Google Analytics, Google Fonts, Google Hosted Libraries + 3 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →