JavaScript Library & Framework
26,986 of the 1,000,000 top sites in our Tranco top-1M census run Modernizr (2.7%). 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 |
|---|---|---|---|
| novaclubmarket.nl | #353,462 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| align.com.tw | #353,502 | Apache, Bootstrap, Font Awesome + 8 more | Find emails |
| dus.de | #353,526 | Apache, Bootstrap, Fancybox + 11 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| lasvegasnvwaterheater.repair |
| #353,539 |
| Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more |
| Find emails |
| steadypoint.de | #353,595 | Bootstrap, Fancybox, Let's Encrypt + 6 more | Find emails |
| clearlineway.us | #353,624 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| digitaldicegroup.nl | #353,691 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| coremark.us | #353,717 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| nuh.nhs.uk | #353,763 | GTranslate, Google Fonts, Let's Encrypt + 3 more | Find emails |
| ashandicraft.in | #353,799 | Bootstrap, Font Awesome, Google Analytics + 13 more | Find emails |
| zuyderland.nl | #353,815 | Cookiebot, Font Awesome, Let's Encrypt + 11 more | Find emails |
| vectorhub.nl | #353,924 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| kisr.edu.kw | #353,944 | AOS, Bootstrap, DigiCert + 13 more | Find emails |
| petsxl.com | #353,947 | ASP.NET, Consentmanager.net, Google Tag Manager + 5 more | Find emails |
| cloudvention.net | #353,976 | Apache, Concrete CMS, Google Analytics + 3 more | Find emails |
| corewinspro.nl | #353,980 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| geeksquare.ca | #353,990 | Amazon Route 53, Bootstrap, Chart.js + 12 more | Find emails |
| globalvipdaily.com | #354,003 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| zopedirectory.com | #354,019 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| cleartrailway.ca | #354,032 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| wallabag.org | #354,100 | Eleventy, Fancybox, Let's Encrypt + 4 more | Find emails |
| sparktrail.us | #354,189 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| ai-gakkai.or.jp | #354,195 | Apache, Fancybox, Google Fonts + 6 more | Find emails |
| gracieuniversity.com | #354,219 | ASP.NET, Bootstrap, Cloudflare + 10 more | Find emails |
| astrospinsstation.nl | #354,233 | Bootstrap, Cloudflare, Cloudflare Web 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 1,000,000-domain Tranco top-1M census (run top1m-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →