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 |
|---|---|---|---|
| puddleducks.com | #516,702 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 12 more | Find emails |
| 889992903.xyz | #516,729 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| stricker-europe.com | #516,774 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| logistra.de | #516,825 | Drupal, Google Publisher Tag, Let's Encrypt + 4 more | Find emails |
| directory-store.com | #516,869 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| anytimeplumbingaustin.com | #516,881 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| fun-moebel.de | #516,948 | Google Tag Manager, Let's Encrypt, Nginx | Find emails |
| trunkbaseddevelopment.com | #516,998 | Google Analytics, Google Fonts, Hugo + 3 more | Find emails |
| chocolateandzucchini.com | #517,003 | Adobe Fonts (Typekit), Google Analytics, Google Fonts + 7 more | Find emails |
| metal-am.com | #517,093 | ClickTale (Contentsquare), Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| orange-directory.com | #517,211 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| markizpergol.com | #517,263 | Google Analytics, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| nudecosplaygirls.com | #517,303 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| campuseusa.net | #517,337 | Bootstrap, Cookiebot, Fancybox + 15 more | Find emails |
| maccosmetics.com.mx | #517,433 | Afterpay, Akamai Bot Manager, Akamai edge/CDN + 6 more | Find emails |
| toluca.gob.mx | #517,480 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 5 more | Find emails |
| smartserials.com | #517,528 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| cpn.it | #517,561 | Bootstrap, Google Tag Manager, WhatsApp Business (click-to-chat) + 1 more | Find emails |
| jildorshoes.com | #517,600 | BigCommerce, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| guildfordspectrum.co.uk | #517,669 | Bootstrap, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| foodincanada.com | #517,721 | Font Awesome, Google Analytics, Google Cloud DNS + 9 more | Find emails |
| graftombe.nl | #517,750 | Foundation, Google Analytics, Google Fonts + 5 more | Find emails |
| klaas-und-kock.de | #517,822 | Bootstrap, Fancybox, Google Analytics + 6 more | Find emails |
| vegaturbo.com.br | #517,843 | ASP.NET, Google Analytics, Google Fonts + 2 more | Find emails |
| redjade.net | #517,886 | Amazon Route 53, HubSpot, Let's Encrypt + 5 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 →