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 |
|---|---|---|---|
| usagi-online.com | #64,199 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 11 more | Find emails |
| big5sportinggoods.com | #64,211 | Akamai Edge DNS, Akamai edge/CDN, Apache + 7 more | Find emails |
| ummc.edu.my | #64,220 | Bootstrap, Font Awesome, Sectigo + 4 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| orientacionandujar.es | #64,280 | AddThis, Google AdSense, Google Analytics + 8 more | Find emails |
| honeycomb.net | #64,292 | Matomo, Nginx, Sectigo + 1 more | Find emails |
| iabtechlab.com | #64,366 | Apache, Bootstrap, Civic Cookie Control + 16 more | Find emails |
| techlib.cz | #64,402 | Apache, Let's Encrypt, Lodash + 6 more | Find emails |
| auberge.com | #64,411 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| hdm-stuttgart.de | #64,415 | Let's Encrypt, OpenResty, Swiper + 1 more | Find emails |
| dealersocket.com | #64,506 | AddThis, Adobe Fonts (Typekit), Cloudflare + 21 more | Find emails |
| bdren.net.bd | #64,540 | AOS, Bootstrap, Font Awesome + 13 more | Find emails |
| trafmag.com | #64,608 | Bootstrap, Font Awesome, Google Analytics + 8 more | Find emails |
| narod2.ru | #64,616 | Google Analytics, Google Tag Manager, LiveInternet (Yadro) + 5 more | Find emails |
| koreatimes.com | #64,655 | Apache, DoubleClick (Google Ads), Google AdSense + 4 more | Find emails |
| ou.edu.vn | #64,656 | Font Awesome, Google Fonts, Let's Encrypt + 7 more | Find emails |
| biogen.com | #64,678 | Adobe Experience Manager Edge Delivery (Helix RUM), Adobe Fonts (Typekit), Amazon (ACM) + 10 more | Find emails |
| glasistre.hr | #64,719 | ASP.NET, Bootstrap, Cloudflare + 19 more | Find emails |
| polizei.nrw | #64,721 | Drupal, Leaflet, Matomo + 1 more | Find emails |
| amcnetworks.com | #64,768 | Google Analytics, Google Tag Manager, Let's Encrypt + 7 more | Find emails |
| silversneakers.com | #64,784 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 17 more | Find emails |
| miur.gov.it | #64,791 | Apache, Citrix NetScaler, Let's Encrypt + 3 more | Find emails |
| aapa.org | #64,816 | AddToAny, Adobe Fonts (Typekit), Cloudflare + 16 more | Find emails |
| worldcasinodirectory.com | #64,835 | Amazon Route 53, Apache, Bootstrap + 17 more | Find emails |
| ec-store.net | #64,845 | Amazon CloudFront, Amazon Route 53, DoubleClick (Google Ads) + 14 more | Find emails |
| insa-lyon.fr | #64,905 | AddThis, Drupal, Fancybox + 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 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 →