JavaScript Library & Framework
26,986 of the 1,000,000 top sites in our Tranco top-1M census run Modernizr (2.7%). 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.
Other javascript library & framework
| # | 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 |
|---|---|---|---|
| firebirdsql.org | #111,143 | Blogger, Bootstrap, Cloudflare + 12 more | Find emails |
| foi.hr | #111,148 | Bootstrap, Drupal, Font Awesome + 7 more | Find emails |
| learn.org | #111,168 | AWS Lambda, Amazon Route 53, Cloudflare edge/CDN + 7 more | Find emails |
| #563 (Tranco) |
| Find emails |
| 5 | dreamhost.com | #677 (Tranco) | Find emails |
| 3plearning.com |
| #111,227 |
| Adobe Fonts (Typekit), Azure DNS, Cloudflare Bot Management + 19 more |
| Find emails |
| rcast.net | #111,254 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| alleghenycounty.us | #111,279 | Akamai edge/CDN, Akamai mPulse, Azure DNS + 7 more | Find emails |
| wolves.co.uk | #111,442 | ASP.NET, Azure API Management, Azure Front Door + 15 more | Find emails |
| telekom.pl | #111,446 | Apache, Bootstrap, Font Awesome + 8 more | Find emails |
| sspnet.org | #111,520 | ASP.NET, Adobe Fonts (Typekit), Azure API Management + 25 more | Find emails |
| eatyourbooks.com | #111,582 | ASP.NET, Bootstrap, Cloudflare + 16 more | Find emails |
| hs-worms.de | #111,684 | Apache, Matomo, PHP + 2 more | Find emails |
| fantasyfootballscout.co.uk | #111,703 | Apache, Google Analytics, Google Fonts + 9 more | Find emails |
| ubmdns.com | #111,709 | ASP.NET, Azure API Management, Cloudflare edge/CDN + 6 more | Find emails |
| childcareaware.org | #111,876 | ASP.NET, BambooHR, Cloudflare + 23 more | Find emails |
| zorin-os.com | #111,880 | Let's Encrypt, Namecheap, Netlify + 1 more | Find emails |
| parktool.com | #111,947 | Apache, Font Awesome, Google Tag Manager + 2 more | Find emails |
| charitybuzz.com | #111,951 | Adobe Fonts (Typekit), Amazon (ACM), Amazon Route 53 + 15 more | Find emails |
| fooby.ch | #111,961 | DoubleClick (Google Ads), Google Analytics, Microsoft 365 + 1 more | Find emails |
| brettworks.net | #112,027 | Apache, Backbone.js, Bootstrap + 9 more | Find emails |
| pushgaming.com | #112,029 | Apache, BambooHR, Cloudflare + 11 more | Find emails |
| fitx.de | #112,047 | Adobe Fonts (Typekit), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| scribens.fr | #112,149 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| structurae.net | #112,159 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 14 more | Find emails |
| ihosting.cl | #112,197 | Astro, Bootstrap, Cloudflare edge/CDN + 14 more | Find emails |
| 5.ua | #112,201 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 8 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-2026-08-24-full), snapshot August 24, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →