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 |
|---|---|---|---|
| extraplus.sk | #575,033 | Drupal, Let's Encrypt, Meta Pixel + 1 more | Find emails |
| mornet.net | #575,105 | Bootstrap, Fancybox, Google Fonts + 4 more | Find emails |
| sociologicalscience.com | #575,145 | Google Fonts, Nginx, Sectigo + 2 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | python.org | #747 (Tranco) | Find emails |
| ilmavoimat.fi | #575,195 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| gept.org.tw | #575,236 | Fancybox, Google Tag Manager, jQuery | Find emails |
| mfcoutdoorstores.com | #575,249 | Bootstrap, Font Awesome, Google Fonts + 6 more | Find emails |
| cipp.org.uk | #575,276 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 11 more | Find emails |
| nie.lk | #575,299 | ASP.NET, Bootstrap, Cloudflare + 4 more | Find emails |
| colliercountyfl.gov | #575,320 | Akamai Bot Manager, Akamai mPulse, Google Analytics + 4 more | Find emails |
| soldaatvanoranje.nl | #575,341 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| gokick.com | #575,395 | Bootstrap, Google Ads Conversion, Google Analytics + 19 more | Find emails |
| messies.com | #575,410 | Bootstrap, Font Awesome, Google Fonts + 6 more | Find emails |
| open-educational-resources.de | #575,424 | Bootstrap, Font Awesome, Google Fonts + 5 more | Find emails |
| gardenhealth.com | #575,516 | Adobe Fonts (Typekit), Bootstrap, Cloudflare Bot Management + 9 more | Find emails |
| proxi-totalenergies.fr | #575,582 | Amazon (ACM), Amazon CloudFront, Microsoft 365 + 2 more | Find emails |
| cemedine.co.jp | #575,643 | Google Tag Manager, Microsoft 365, Slick Carousel + 3 more | Find emails |
| limeserver.com | #575,748 | Google Fonts, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| guidedogs.com | #575,821 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| xptraffic.com | #575,826 | Bootstrap, Font Awesome, Let's Encrypt + 2 more | Find emails |
| infrastructure-ni.gov.uk | #575,861 | ConsentMo, Drupal, Google Fonts + 2 more | Find emails |
| kazfootball.kz | #575,903 | Bootstrap, Font Awesome, Google Analytics + 5 more | Find emails |
| kentcht.nhs.uk | #575,916 | Font Awesome, Google Fonts, Let's Encrypt + 7 more | Find emails |
| thediyhostess.com | #575,929 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| savvysavingcouple.net | #576,021 | Cloudflare, Cloudflare edge/CDN, ConsentMo + 7 more | Find emails |
| caravanguard.co.uk | #576,027 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 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 →