JavaScript Library & Framework
16,473 of the 965,200 top sites in our Tranco top-1M census run Modernizr (1.7%). 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 |
|---|---|---|---|
| goldforex.be | #550,243 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| atr-aircraft.com | #550,310 | Amazon (ACM), Amazon CloudFront, Google Analytics + 8 more | Find emails |
| arkaglobalnekretnine.com.hr | #550,369 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| papemachinery.com | #550,504 | Google Fonts, Google Tag Manager, Meta Pixel + 3 more | Find emails |
| bluemarlinibiza.com | #550,670 | Amazon Route 53, Google Analytics, Google Tag Manager + 7 more | Find emails |
| vigeowebsite.com | #550,745 | ASP.NET, Bootstrap, Google Analytics + 6 more | Find emails |
| phta.org | #550,770 | Bootstrap, DigiCert, Font Awesome + 8 more | Find emails |
| formulabotanica.com | #550,782 | Adobe Fonts (Typekit), Bootstrap, Bunny Fonts + 13 more | Find emails |
| pulsegamblelounge.com | #550,810 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| theduchy.com | #550,819 | AOS, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| actvn.edu.vn | #550,895 | ASP.NET, Bootstrap, Font Awesome + 5 more | Find emails |
| floratediye.com | #550,973 | ASP.NET, Bootstrap, Font Awesome + 6 more | Find emails |
| petland.ca | #551,004 | Bootstrap, Cloudflare edge/CDN, Font Awesome + 12 more | Find emails |
| groundviews.org | #551,259 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| barclays-arena.de | #551,443 | Adobe Fonts (Typekit), Azure DNS, Fastly + 7 more | Find emails |
| columbuspercussion.com | #551,488 | Affirm, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| indianringneck.com | #551,550 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| next.edeka | #551,614 | Let's Encrypt | Find emails |
| bkkthon.ac.th | #551,626 | Bootstrap, Cloudflare, Google Analytics + 4 more | Find emails |
| cumpsters.com | #551,767 | Font Awesome, Google Fonts, Let's Encrypt + 4 more | Find emails |
| thesiswritinghelp.com.pk | #551,770 | Bootstrap, Font Awesome, Google Ads Conversion + 10 more | Find emails |
| livehealthonline.com | #551,790 | Akamai Edge DNS, Google Fonts, Microsoft 365 + 8 more | Find emails |
| camaroforums.com | #551,801 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 7 more | Find emails |
| fertagus.pt | #551,824 | ASP.NET, Azure DNS, Bootstrap + 7 more | Find emails |
| linnsheriff.org | #551,938 | Cloudflare, Font Awesome, Google Analytics + 7 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 965,200-domain Tranco top-1M census (run top1m-2026-08-20-full), snapshot August 21, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →