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 |
|---|---|---|---|
| cti.ru | #157,675 | Bitrix, Google Analytics, Google Fonts + 5 more | Find emails |
| mypresspage.com | #157,723 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| saastopankki.fi | #157,741 | Amazon Route 53, Azure API Management, Azure Front Door + 5 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| slovnyk.ua | #157,776 | Bootstrap, Chart.js, Cloudflare + 15 more | Find emails |
| sofitasa.com | #157,836 | Bootstrap, Cloudflare, DataTables + 12 more | Find emails |
| pcori.org | #157,864 | Azure DNS, Drupal, Fastly + 8 more | Find emails |
| niagara.edu | #157,871 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Bot Management + 17 more | Find emails |
| rlje.net | #157,937 | Amazon Route 53, Google Analytics, Google Tag Manager + 4 more | Find emails |
| wmdt.com | #157,955 | Bootstrap, Font Awesome, Foundation + 15 more | Find emails |
| thesocialvibes.com | #157,981 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| rotherham.gov.uk | #158,009 | Amazon (ACM), Cludo, Google Analytics + 7 more | Find emails |
| fishpond.com | #158,042 | Amazon (ACM), Amazon Route 53, Font Awesome + 8 more | Find emails |
| classifylist.com | #158,079 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| timbuk2.com | #158,087 | Amazon Route 53, Cloudflare edge/CDN, Klevu + 5 more | Find emails |
| bc.com | #158,103 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 12 more | Find emails |
| mme.hu | #158,123 | Apache, Drupal, Google Analytics + 5 more | Find emails |
| flitetest.com | #158,156 | BigCommerce, Bootstrap, Cloudflare + 18 more | Find emails |
| fukuoka-airport.jp | #158,197 | Font Awesome, Google Hosted Libraries, Google Tag Manager + 4 more | Find emails |
| peakbookmarks.com | #158,215 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| chicksaddlery.com | #158,279 | Cloudflare, Cloudflare edge/CDN, DigitalOcean Spaces + 10 more | Find emails |
| alphabookmarking.com | #158,343 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| educationmalaysia.gov.my | #158,353 | ASP.NET, Fancybox, Google Analytics + 10 more | Find emails |
| gogogobookmarks.com | #158,363 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| faster-it.de | #158,364 | Apache, Let's Encrypt | Find emails |
| inspectiamuncii.ro | #158,388 | Apache, Bootstrap, Font Awesome + 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 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 25, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →