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 |
|---|---|---|---|
| hep.hr | #124,726 | ASP.NET, Bootstrap, DigiCert + 4 more | Find emails |
| vitoria.es.gov.br | #124,847 | Bootstrap, DataTables, DigiCert + 7 more | Find emails |
| 6profis.de | #124,945 | Cloudflare, Cloudflare edge/CDN, ConsentMo + 8 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| ddfcontent.com |
| #124,956 |
| Bootstrap, Cloudflare, Google Fonts + 5 more |
| Find emails |
| bookmarklinking.com | #125,098 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| csnet.nl | #125,142 | Apache, Bootstrap, Chart.js + 5 more | Find emails |
| thirdsector.co.uk | #125,166 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| bwin.pt | #125,274 | Cloudflare Bot Management, Cloudflare edge/CDN, DigiCert + 1 more | Find emails |
| duiadns.net | #125,321 | Bootstrap, Font Awesome, Google AdSense + 9 more | Find emails |
| centerforfoodsafety.org | #125,396 | Google Ads Conversion, Google Analytics, Google Hosted Libraries + 13 more | Find emails |
| lamar.com | #125,419 | ASP.NET, Adobe Experience Cloud (Launch), Amazon Route 53 + 14 more | Find emails |
| adbozor.uz | #125,437 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| politicheagricole.it | #125,441 | Apache, Bootstrap, DigiCert + 9 more | Find emails |
| supplyshop.com | #125,482 | Ahrefs Analytics, Bootstrap, Cloudflare edge/CDN + 17 more | Find emails |
| trevaskisfarm.co.uk | #125,532 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| msvu.ca | #125,586 | Font Awesome, Google Analytics, Google Fonts + 8 more | Find emails |
| brownstoner.com | #125,612 | AddToAny, Adobe Fonts (Typekit), Clicky + 15 more | Find emails |
| dccouncil.gov | #125,618 | Cloudflare, Fastly, Google Fonts + 11 more | Find emails |
| laplata.gob.ar | #125,626 | AOS, AngularJS, Apache + 13 more | Find emails |
| rational-online.com | #125,668 | Azure DNS, Microsoft 365, PHP + 2 more | Find emails |
| firstnews.co.uk | #125,670 | AddThis, Adobe Fonts (Typekit), Cloudflare + 10 more | Find emails |
| chatolive.net | #125,719 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| rpgfan.com | #125,821 | AOS, Apache, DoubleClick (Google Ads) + 12 more | Find emails |
| thirdage.com | #125,841 | Adobe Fonts (Typekit), Amazon Route 53, Bootstrap + 15 more | Find emails |
| scienceandmediamuseum.org.uk | #125,858 | ASP.NET, Bluesky, Cloudflare + 13 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 →