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 |
|---|---|---|---|
| 3mdeutschland.de | #274,027 | Akamai Bot Manager, Akamai edge/CDN, Apache + 7 more | Find emails |
| thetorocompany.com | #274,036 | Adobe Experience Cloud (Launch), Adobe Fonts (Typekit), Akamai Bot Manager + 20 more | Find emails |
| marka.pt | #274,105 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| jeaheatingairconditioning.com | #274,342 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| 5series.net | #274,354 | Amazon Advertising, Blockthrough, Cloudflare + 19 more | Find emails |
| ernis.lv | #274,397 | All in One SEO, Bootstrap, CookieYes + 9 more | Find emails |
| ibermatica.com | #274,410 | GSAP, Google Analytics, Nginx + 7 more | Find emails |
| posfree.com | #274,472 | ASP.NET, Bootstrap, Let's Encrypt + 3 more | Find emails |
| lmax.com | #274,475 | Amazon CloudFront, Atlassian Cloud, Bootstrap + 22 more | Find emails |
| infotrack.co.uk | #274,501 | Ahrefs Analytics, Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| rssb.co.uk | #274,654 | ASP.NET, Azure API Management, Azure DNS + 12 more | Find emails |
| motorzona24.ru | #274,769 | Google Analytics, Google Hosted Libraries, Google Tag Manager + 5 more | Find emails |
| mapa.es | #274,806 | Bootstrap, Drupal, Font Awesome + 7 more | Find emails |
| zingtree.com | #274,834 | AWS Lambda, Bootstrap, Cloudflare + 18 more | Find emails |
| designkit.org | #274,891 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| 1c-interes.ru | #275,038 | Bitrix, Cloudflare, Fancybox + 7 more | Find emails |
| groobygirls.com | #275,162 | ASP.NET, Bootstrap, Font Awesome + 10 more | Find emails |
| learnenglish.de | #275,204 | Bootstrap, Chart.js, Font Awesome + 8 more | Find emails |
| makolan.net | #275,269 | Apache, Bootstrap, Font Awesome + 4 more | Find emails |
| hfv-speyer.de | #275,280 | Bootstrap, Clicky, Cloudflare + 11 more | Find emails |
| syn-era.ru | #275,527 | Bitrix, Bootstrap, Google Fonts + 7 more | Find emails |
| vvo-online.de | #275,613 | Eye-Able, Fonts.com, WordPress | Find emails |
| klungkungkab.go.id | #275,622 | Bootstrap, Font Awesome, Google Analytics + 13 more | Find emails |
| gesundheitsforschung-bmbf.de | #275,794 | Let's Encrypt, Nginx | Find emails |
| gutscharity.org.uk | #275,797 | Bootstrap, Bunny Fonts, Cloudflare + 12 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 →