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 |
|---|---|---|---|
| galacticresorts.com | #537,306 | ASP.NET, Google Fonts, Sectigo + 1 more | Find emails |
| geotogether.com | #537,334 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| geset.com.br | #537,335 | Bootstrap, Cloudflare, Font Awesome + 6 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| guzzitech.com | #537,414 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| ichika.mobi | #537,534 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| karley.de | #537,750 | Bootstrap, Font Awesome, Google Tag Manager + 4 more | Find emails |
| leaffilterracing.com | #537,833 | Adobe Fonts (Typekit), Bootstrap, Cloudflare + 10 more | Find emails |
| linkgrid.com | #537,869 | Bootstrap, Cloudflare, Font Awesome + 4 more | Find emails |
| mangas.in | #537,940 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| mmc-ec.co.jp | #538,032 | Google Fonts, Swiper, WordPress + 5 more | Find emails |
| noxxonsat.com.br | #538,191 | Bootstrap, Font Awesome, Google Analytics + 6 more | Find emails |
| opennameserver.org | #538,261 | Bootstrap, Cookiebot, Google Analytics + 3 more | Find emails |
| preappinc.com | #538,421 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 3 more | Find emails |
| rjconsultores.com.br | #538,563 | Amazon Route 53, Google Analytics, Google Fonts + 4 more | Find emails |
| sasboss.com.au | #538,663 | Amazon Route 53, Bootstrap, Font Awesome + 4 more | Find emails |
| sgs-hr.co.jp | #538,725 | Google Analytics, Google Tag Manager, Let's Encrypt + 2 more | Find emails |
| silianchina.com | #538,763 | DigiCert, Google Analytics, Nginx + 1 more | Find emails |
| smythautoparts.com | #538,807 | Bootstrap, Font Awesome, Google Analytics + 9 more | Find emails |
| sonicpanel.com | #538,828 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| srigroup.co.za | #538,859 | ASP.NET, Bootstrap, Font Awesome + 5 more | Find emails |
| sw-weimar.de | #538,939 | DigiCert, TYPO3 | Find emails |
| mytelly.co.uk | #539,534 | Amazon (ACM), Amazon Route 53, Bootstrap + 4 more | Find emails |
| swelco.co.za | #539,617 | Bootstrap, Font Awesome, Google Ads Conversion + 10 more | Find emails |
| stellarspinflow.nl | #539,713 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| nachrichten-heute.net | #539,721 | Let's Encrypt, Nginx, Underscore.js + 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 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 →