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 |
|---|---|---|---|
| gzxianc.com | #542,261 | Bootstrap, DigiCert, jQuery | Find emails |
| scoap3.org | #542,285 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| yongin.ac.kr | #542,295 | Google Analytics, Google Tag Manager, Microsoft 365 + 2 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| autismontario.com |
| #542,300 |
| Amazon (ACM), Amazon Route 53, Drupal + 6 more |
| Find emails |
| lyonsreg.com | #542,309 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| cm-loule.pt | #542,349 | ASP.NET, Let's Encrypt, Microsoft 365 + 3 more | Find emails |
| webpagenepal.com | #542,448 | AOS, Bootstrap, Font Awesome + 7 more | Find emails |
| nagarjunauniversity.ac.in | #542,533 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| firstclasscode.com | #542,594 | Google Fonts, Let's Encrypt, WooCommerce + 3 more | Find emails |
| posadas.gov.ar | #542,704 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| hbo-kennisbank.nl | #542,837 | WordPress, jQuery, jQuery UI | Find emails |
| uzu-shio.com | #542,876 | Google Tag Manager, Let's Encrypt, Nginx + 2 more | Find emails |
| ox-fanzine.de | #542,943 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 2 more | Find emails |
| latymer-upper.org | #543,201 | Bootstrap, CookieYes, Font Awesome + 10 more | Find emails |
| web-directory4.com | #543,281 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| apaman3puku.com | #543,290 | Google Analytics, Google Fonts, Google Tag Manager + 6 more | Find emails |
| landestheater-linz.at | #543,351 | DigiCert, Fancybox, Microsoft 365 + 2 more | Find emails |
| livepay.io | #543,394 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| ipstars.com | #543,397 | Azure DNS, Bootstrap, CookieYes + 7 more | Find emails |
| miamirealestate.agency | #543,420 | ASP.NET, Google Fonts, Google Tag Manager + 2 more | Find emails |
| teleboario.it | #543,475 | ConsentMo, Foundation, Google Fonts + 5 more | Find emails |
| tekspb.ru | #543,481 | Bootstrap, Drupal, Let's Encrypt + 1 more | Find emails |
| dhktyduocdn.edu.vn | #543,533 | ASP.NET, Bootstrap, Google Fonts + 4 more | Find emails |
| lzjoy.com | #543,569 | Axios, Bootstrap, Nginx + 2 more | Find emails |
| paperindex.com | #543,586 | Amazon Route 53, Bootstrap, Font Awesome + 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 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 →