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 |
|---|---|---|---|
| kraslib.ru | #251,163 | Apache, PHP, jQuery | Find emails |
| johnhartrealestate.com | #251,177 | All in One SEO, Bootstrap, Cloudflare + 18 more | Find emails |
| scottycameron.com | #251,207 | ASP.NET, Akamai Bot Manager, Akamai edge/CDN + 8 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| lacerca.com |
| #251,287 |
| Cloudflare, Cloudflare edge/CDN, Google Analytics + 8 more |
| Find emails |
| consul.mn | #251,359 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| logimat-messe.de | #251,366 | Apache, Consentmanager.net, Drupal + 7 more | Find emails |
| directoryrec.com | #251,388 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| partypoker.de | #251,395 | Cloudflare Bot Management, Cloudflare edge/CDN, DigiCert + 2 more | Find emails |
| southwestcoastpath.org.uk | #251,515 | Bluesky, Bootstrap, Cloudflare + 7 more | Find emails |
| laundrymachines.co.uk | #251,533 | Font Awesome, Google Analytics, Google Hosted Libraries + 10 more | Find emails |
| reedbusiness.com | #251,542 | Adobe Experience Cloud (Launch), Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| vintageradar.com | #251,546 | Cloudflare edge/CDN, GoAffPro, Let's Encrypt + 6 more | Find emails |
| sci.com.br | #251,695 | Cloudflare, Cloudflare edge/CDN, Fancybox + 11 more | Find emails |
| denydesigns.com | #251,702 | Amazon Route 53, Bootstrap, Cloudflare edge/CDN + 11 more | Find emails |
| ibbi.gov.in | #251,731 | AOS, Apache, Bootstrap + 5 more | Find emails |
| dizaynnet.com | #251,819 | Bootstrap, Chart.js, Font Awesome + 4 more | Find emails |
| applian.com | #251,828 | AdRoll, All in One SEO, Amazon (ACM) + 14 more | Find emails |
| norisp.no | #251,875 | BitPay, Bootstrap, Font Awesome + 10 more | Find emails |
| brodandtaylor.com | #251,904 | Bazaarvoice, Cloudflare edge/CDN, Google Cloud DNS + 11 more | Find emails |
| m1socialcrm.com | #251,922 | DigiCert | Find emails |
| teamtitanplumbing.com | #251,986 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| craftster.org | #251,992 | Amazon Advertising, Bootstrap, Cloudflare + 15 more | Find emails |
| satnogs.org | #252,007 | Let's Encrypt, Nginx, PHP + 3 more | Find emails |
| staterecords.org | #252,014 | Google Cloud DNS, Google Fonts, Google Identity Services + 14 more | Find emails |
| takomabicycle.com | #252,029 | Cloudflare edge/CDN, Font Awesome, Google Fonts + 12 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 →