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 |
|---|---|---|---|
| goldspins.us | #350,544 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| bcohio.gov | #350,549 | Bootstrap, Cloudflare, Font Awesome + 9 more | Find emails |
| fusionroulettebase.nl | #350,568 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| jackpottrue.com | #350,583 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| flexridge.us | #350,599 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| upi-yai.ac.id | #350,649 | Ahrefs Analytics, Bootstrap, Fancybox + 14 more | Find emails |
| spinclub.nl | #350,663 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| cvcontent-api.com | #350,675 | ASP.NET, Amazon (ACM), Amazon Route 53 + 2 more | Find emails |
| hcst.net | #350,733 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 6 more | Find emails |
| dovaluegreece.gr | #350,736 | Apache, DigiCert, Drupal + 3 more | Find emails |
| 66batman.com | #350,761 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| marine.ie | #350,772 | Blogger, Drupal, Google Analytics + 7 more | Find emails |
| megapalace.de | #350,783 | Bootstrap, Contabo Object Storage, Fancybox + 6 more | Find emails |
| sunkost.no | #350,821 | Adobe Fonts (Typekit), Cloudflare, CookieYes + 9 more | Find emails |
| visionroyalcentral.com | #350,865 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| centraldomainnames.com | #350,959 | Apache, Google Fonts, Google Hosted Libraries + 4 more | Find emails |
| gramenet.cat | #350,962 | Apache, DoubleClick (Google Ads), Font Awesome + 8 more | Find emails |
| reklama5.com | #350,977 | ASP.NET, Bugsnag, Cloudflare + 8 more | Find emails |
| moderntrail.de | #351,004 | Bootstrap, Contabo Object Storage, Fancybox + 6 more | Find emails |
| applyists.net | #351,058 | ASP.NET, Bootstrap, Google Analytics + 5 more | Find emails |
| betspins.us | #351,108 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| kreis-hoexter.de | #351,119 | Apache, DigiCert, Eye-Able + 2 more | Find emails |
| vertexhub.de | #351,128 | Bootstrap, Contabo Object Storage, Fancybox + 6 more | Find emails |
| lovelydirectory.com | #351,138 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| aeroroyalspace.nl | #351,139 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 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 →