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 |
|---|---|---|---|
| lg-outdoors.com | #530,727 | ASP.NET, Bootstrap, Google Ads Conversion + 5 more | Find emails |
| jesuswalk.com | #530,844 | DigiCert, Google Analytics, Google Tag Manager + 3 more | Find emails |
| canaca.com | #531,072 | Foundation, Google Fonts, Let's Encrypt + 1 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| bdcosmos.com | #531,182 | Bootstrap, Cloudflare edge/CDN, Font Awesome + 11 more | Find emails |
| cvk.de | #531,256 | Font Awesome, Microsoft 365, Sectigo + 3 more | Find emails |
| csafamilia.cl | #531,308 | Let's Encrypt, YouTube, jQuery | Find emails |
| beac.int | #531,446 | DigiCert, Font Awesome, Google Analytics + 10 more | Find emails |
| derijkstebelgen.be | #531,459 | Google Analytics, Google Fonts, Google Tag Manager + 6 more | Find emails |
| 500.gov.tw | #531,495 | Bootstrap, Cloudflare, Font Awesome + 5 more | Find emails |
| meineentega.de | #531,496 | Bootstrap, DigiCert, OneTrust + 2 more | Find emails |
| mv-schloesser.de | #531,528 | DigiCert, Mapbox, Matomo + 7 more | Find emails |
| zaansmedischcentrum.nl | #531,532 | Bootstrap, Font Awesome, Matomo + 3 more | Find emails |
| worthly.com | #531,724 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| waterdamagerestorationimmokaleefl.us | #531,768 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| hiscoxgroup.com | #531,821 | Cloudflare Bot Management, Cloudflare edge/CDN, ConsentMo + 6 more | Find emails |
| blowfish.ch | #531,888 | ASP.NET, Bootstrap, Font Awesome + 5 more | Find emails |
| fukujo.ac.jp | #531,900 | Fancybox, Font Awesome, Google Analytics + 4 more | Find emails |
| starvedia.com | #531,902 | Bootstrap, Font Awesome, Google Analytics + 3 more | Find emails |
| tycket.com.br | #531,940 | Font Awesome, Google Analytics, Google Fonts + 8 more | Find emails |
| sanct-bernhard.it | #531,952 | Google Tag Manager, Let's Encrypt | Find emails |
| clubspark.net | #532,017 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| soundiron.com | #532,047 | Cloudflare edge/CDN, Google Analytics, Google Fonts + 13 more | Find emails |
| mlp-se.de | #532,113 | DigiCert, Google Tag Manager, Usercentrics | Find emails |
| rennmaus.de | #532,160 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| thecreativeloft.com | #532,192 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 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 →