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 |
|---|---|---|---|
| unwe.bg | #134,897 | ASP.NET, Bootstrap, Cloudflare + 10 more | Find emails |
| zhenhuadl.com | #134,910 | Baidu Maps, jQuery | Find emails |
| doctorbookmark.com | #134,912 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| session-replays.io |
| #134,923 |
| Bootstrap, Font Awesome, Let's Encrypt + 2 more |
| Find emails |
| hifi-forum.de | #134,950 | Amazon Advertising, AppNexus, Casale Media + 16 more | Find emails |
| socialupme.com | #135,027 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| dedicado.com.uy | #135,038 | ASP.NET, Bootstrap, Font Awesome + 5 more | Find emails |
| bookmarkshut.com | #135,073 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| deanza.edu | #135,080 | Apache, Bootstrap, Font Awesome + 10 more | Find emails |
| ezpassva.com | #135,151 | ASP.NET, Amazon CloudFront, Amazon S3 + 14 more | Find emails |
| containerking.co.uk | #135,175 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| mammothbikes.com | #135,220 | ASP.NET, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| salatimes.com | #135,254 | Apache, Bootstrap, DigiCert + 8 more | Find emails |
| homepage.ninja | #135,260 | ASP.NET, AddToAny, Google Analytics + 3 more | Find emails |
| nybookmark.com | #135,269 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 more | Find emails |
| incyte.com | #135,387 | CSC (Digital Brand Services), Drupal, Font Awesome + 9 more | Find emails |
| monroecc.edu | #135,411 | Bootstrap, Font Awesome, Google Analytics + 9 more | Find emails |
| netblocks.org | #135,418 | Bluesky, Bootstrap, Cloudflare + 13 more | Find emails |
| floridaguntrader.com | #135,419 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| bostitch.co.uk | #135,458 | Akamai Edge DNS, Apache, DoubleClick (Google Ads) + 11 more | Find emails |
| mica.edu | #135,462 | Amazon (ACM), Amazon Route 53, Apache + 6 more | Find emails |
| doromobile.com | #135,483 | Bootstrap, Fancybox, Font Awesome + 4 more | Find emails |
| art21.org | #135,522 | AngularJS, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| bookmarking.stream | #135,546 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| thesocialcircles.com | #135,550 | Bootstrap, Cloudflare, Cloudflare Bot Management + 9 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 →