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 |
|---|---|---|---|
| 889993106.xyz | #483,552 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| scitraining.com | #483,559 | Bootstrap, Google Analytics, Google Tag Manager + 2 more | Find emails |
| citylocal101.com | #483,604 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| 889993661.xyz | #483,630 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| oldham-chronicle.co.uk | #483,646 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| moldremovalglendale.us | #483,659 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| centralideasconexion.mx | #483,677 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| sekkisei.jp | #484,063 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| syu.edu.cn | #484,104 | Slick Carousel, Swiper, jQuery | Find emails |
| globalpolicyinsights.org | #484,284 | Bootstrap, Font Awesome, Google Analytics + 6 more | Find emails |
| asppalermo.org | #484,462 | Moment.js, Sectigo, WordPress + 2 more | Find emails |
| cekicigelir.com.tr | #484,548 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 5 more | Find emails |
| krcgenk.be | #484,613 | Adobe Fonts (Typekit), Let's Encrypt, Microsoft 365 + 3 more | Find emails |
| kleschoolsolapur.com | #484,653 | Bootstrap, Fancybox, Font Awesome + 6 more | Find emails |
| nasuwt.org.uk | #484,686 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| oscilloscope.net | #484,715 | Font Awesome, Foundation, Google Analytics + 11 more | Find emails |
| bancocasino.sk | #484,748 | Bootstrap, Drupal, Google Analytics + 8 more | Find emails |
| voltimum.com | #484,796 | AOS, Bootstrap, Chart.js + 12 more | Find emails |
| twinpush.com | #484,806 | Bootstrap, Font Awesome, Let's Encrypt + 5 more | Find emails |
| odepa.gob.cl | #484,865 | Bootstrap, Fancybox, Font Awesome + 10 more | Find emails |
| mypetzilla.co.uk | #484,933 | Bootstrap, Concrete CMS, Google AdSense + 7 more | Find emails |
| xoomenergy.com | #485,000 | ASP.NET, Adobe Experience Cloud (Launch), Adobe Fonts (Typekit) + 7 more | Find emails |
| nexusnewsfeed.com | #485,116 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| entityos.cloud | #485,146 | AOS, Amazon (ACM), Amazon Route 53 + 1 more | Find emails |
| iposcoop.com | #485,279 | Sucuri, WooCommerce, WordPress + 2 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 →