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 |
|---|---|---|---|
| kriso.ee | #239,682 | Cloudflare, Cloudflare edge/CDN, Criteo + 5 more | Find emails |
| poltekkes-kaltim.ac.id | #239,704 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| riauonline.co.id | #239,843 | AddThis, Bootstrap, Cloudflare + 16 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| naemt.org | #239,870 | ASP.NET, Bootstrap, Cloudflare edge/CDN + 13 more | Find emails |
| joomla51.com | #239,884 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| hansapark.de | #239,894 | Contao, Ionic Framework, Leaflet + 5 more | Find emails |
| civilserviceworld.com | #239,901 | ASP.NET, DoubleClick (Google Ads), Google AdSense + 9 more | Find emails |
| buyatab.com | #239,932 | Adobe Fonts (Typekit), BambooHR, Cookiebot + 18 more | Find emails |
| http-directory.com | #239,974 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| stadtmarketing-bremerhaven.de | #240,018 | Apache, Flaticon, Let's Encrypt + 3 more | Find emails |
| tourolaw.edu | #240,022 | ASP.NET, Amazon Route 53, Bootstrap + 10 more | Find emails |
| stvincent.edu | #240,079 | Apache, BrightEdge, Cloudflare + 13 more | Find emails |
| generalplus.com | #240,127 | Apache, Font Awesome, Sectigo + 1 more | Find emails |
| uniware.com.br | #240,167 | Adopt, Cloudflare, Font Awesome + 12 more | Find emails |
| ublinux.ru | #240,210 | Apache, Bootstrap, Font Awesome + 13 more | Find emails |
| kit-invest.ru | #240,394 | ASP.NET, Font Awesome, Google Analytics + 3 more | Find emails |
| playhousesquare.org | #240,464 | Chartbeat, Cloudflare Bot Management, Cloudflare Turnstile + 10 more | Find emails |
| barclayscenter.com | #240,516 | Adobe Fonts (Typekit), Braze, Brightcove + 13 more | Find emails |
| peregrinefund.org | #240,601 | AddToAny, Bluesky, Drupal + 7 more | Find emails |
| express-hosting.co.uk | #240,625 | Apache, Bootstrap, Font Awesome + 8 more | Find emails |
| simmonssportinggoods.com | #240,671 | Bootstrap, Cloudflare, Cloudflare Turnstile + 10 more | Find emails |
| zargan.com | #240,884 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| emojicopy.com | #240,941 | Adobe Fonts (Typekit), Cloudflare, Google AdSense + 4 more | Find emails |
| cheapnet.it | #240,990 | Bootstrap, Google Hosted Libraries, Google Tag Manager + 3 more | Find emails |
| datarecognitioncorp.com | #241,040 | Amazon Route 53, Drupal, Google Analytics + 16 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 →