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 |
|---|---|---|---|
| components101.com | #381,331 | Apache, Bootstrap, Cloudflare + 13 more | Find emails |
| pausemag.co.uk | #381,342 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 4 more | Find emails |
| webdirectoryone.com | #381,443 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| megasad.net | #381,455 | Fancybox, Google Tag Manager, Meta Pixel + 6 more | Find emails |
| visionpalacelab.nl | #381,502 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| terrareelsworld.nl | #381,518 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| netraplus.co.uk | #381,519 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| 889993438.xyz | #381,530 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| iodirectory.com | #381,545 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| mydentist.co.uk | #381,551 | ASP.NET, Azure API Management, BrightEdge + 8 more | Find emails |
| directory-blu.com | #381,635 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| 889993464.xyz | #381,643 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| pulsefield.de | #381,693 | Bootstrap, Contabo Object Storage, Fancybox + 6 more | Find emails |
| opentek.ca | #381,703 | Let's Encrypt, jQuery | Find emails |
| jk-forum.com | #381,742 | Amazon Advertising, Cloudflare, Cloudflare Turnstile + 20 more | Find emails |
| equipvascularbcn.com | #381,765 | Apache, Let's Encrypt, WordPress + 2 more | Find emails |
| betagamingdaily.nl | #381,769 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| 889993178.xyz | #381,771 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| spinworldblog.co.uk | #381,791 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| chefreader.com | #381,819 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 12 more | Find emails |
| allier.fr | #381,837 | Apache, PHP, Slick Carousel + 2 more | Find emails |
| duahore.com | #381,850 | Bootstrap, Cloudflare, Cloudflare Bot Management + 17 more | Find emails |
| 889993219.xyz | #382,006 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| rivne1.tv | #382,029 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| clover.co.za | #382,157 | AddToAny, Azure DNS, Azure Front Door + 8 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 →