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 |
|---|---|---|---|
| fluxscope.nl | #347,617 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| satro-paladin.com | #347,750 | Cloudflare, Diginetica, Google Fonts + 8 more | Find emails |
| globalindustrieszone.de | #347,792 | Bootstrap, Contabo Object Storage, Fancybox + 6 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| widecrestway.ca | #347,819 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| fdg-entertainment.com | #347,832 | Apache, Google Fonts, PHP + 8 more | Find emails |
| cooksdirect.com | #347,989 | ASP.NET, AdRoll, Font Awesome + 15 more | Find emails |
| junkahaulix.com | #348,002 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| southafrica.to | #348,094 | Google AdSense, Google Ads Conversion, Google Analytics + 9 more | Find emails |
| tusla.ie | #348,276 | Apache, DigiCert, Google Analytics + 8 more | Find emails |
| visionroulettelounge.com | #348,371 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| slotzone.us | #348,386 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| nextlucky856.com | #348,392 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| hondacivicforum.com | #348,399 | Blockthrough, Cloudflare, Cloudflare Turnstile + 17 more | Find emails |
| heavyharmonies.com | #348,402 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| universomarvel.com | #348,425 | Apache, Backbone.js, Chart.js + 9 more | Find emails |
| peakcraft.nl | #348,447 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| perisher.com.au | #348,450 | ASP.NET, Amazon Route 53, Apache + 15 more | Find emails |
| evropskyspotrebitel.cz | #348,470 | Apache, Font Awesome, Google Analytics + 7 more | Find emails |
| terrafield.us | #348,502 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| branchspot.com | #348,537 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 12 more | Find emails |
| kumon.com.br | #348,558 | ASP.NET, Akamai Edge DNS, Akamai edge/CDN + 10 more | Find emails |
| summitblackjackplatform.com | #348,572 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 7 more | Find emails |
| firstview.com | #348,608 | Apache, Bootstrap, Google Analytics + 8 more | Find emails |
| vectorbase.nl | #348,618 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| civitas.org.uk | #348,640 | Apache, Font Awesome, Google Fonts + 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 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →