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 |
|---|---|---|---|
| derbyshire.gov.uk | #108,482 | ASP.NET, Google Fonts, Google Tag Manager + 3 more | Find emails |
| gore-tex.com | #108,553 | Adobe Experience Cloud (Launch), DigiCert, Drupal + 6 more | Find emails |
| homecredit.net | #108,613 | Google Analytics, Let's Encrypt, Microsoft 365 + 5 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| theparliamentmagazine.eu | #108,689 | ASP.NET, Google Fonts, Google Publisher Tag + 5 more | Find emails |
| fnaim.fr | #108,702 | DigiCert, Google Ads Conversion, Google Analytics + 10 more | Find emails |
| bcbsal.org | #108,712 | Bootstrap, DigiCert, Ensighten + 4 more | Find emails |
| aifa.gov.it | #108,795 | Amazon Route 53, Bootstrap, Font Awesome + 5 more | Find emails |
| valleysolutionsinc.com | #108,829 | ASP.NET, Azure DNS, Leaflet + 1 more | Find emails |
| websurfer.com.np | #108,876 | Bootstrap, Font Awesome, Google Fonts + 5 more | Find emails |
| radaromega.com | #108,913 | Amazon (ACM), Amazon Route 53, Bootstrap + 12 more | Find emails |
| intef.es | #109,131 | Nginx, Owl Carousel, WordPress + 5 more | Find emails |
| owu.edu | #109,132 | Adobe Fonts (Typekit), DigiCert, Google Tag Manager + 1 more | Find emails |
| abet.org | #109,133 | Adobe Experience Cloud (Launch), CrazyEgg, Google Analytics + 10 more | Find emails |
| olympus.co.jp | #109,224 | Adobe Experience Cloud (Launch), Google Tag Manager, Microsoft 365 + 3 more | Find emails |
| abbreviationfinder.org | #109,254 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 5 more | Find emails |
| primetelecom.ro | #109,302 | Bootstrap, Font Awesome, Google Ads Conversion + 10 more | Find emails |
| steves-digicams.com | #109,348 | Amazon Advertising, Cloudflare, Cloudflare Web Analytics + 10 more | Find emails |
| kathimerini.com.cy | #109,373 | Bootstrap, Fancybox, Google Fonts + 10 more | Find emails |
| wkhtmltopdf.org | #109,408 | Cloudflare, Fastly, Foundation + 3 more | Find emails |
| tifr.res.in | #109,681 | Bootstrap, DigiCert, Font Awesome + 2 more | Find emails |
| sfatulmedicului.ro | #109,693 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| schoolsfirstfcu.org | #109,891 | Bootstrap, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| arq.com.mx | #109,928 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| citenet.net | #109,946 | DigiCert, Google Analytics, Google Fonts + 3 more | Find emails |
| mcmenamins.com | #109,991 | ASP.NET, Google Analytics, Google Fonts + 4 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 →