Web Framework
13,475 of the 1,000,000 top sites in our Tranco top-1M census run Ruby on Rails (1.3%). A server-side web application framework written in Ruby, following a convention-over-configuration philosophy. Detection is homepage-level HTML/header fingerprinting, so a site can run Ruby on Rails on other pages without it showing here.
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | github.com | #29 (Tranco) | Find emails |
| 2 | snapchat.com | #123 (Tranco) | Find emails |
| 3 | apache.org | #125 (Tranco) | Find emails |
| 4 | w3.org |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| esv-elibrary.de | #256,198 | Amazon (ACM), Amazon Route 53, Apache + 7 more | Find emails |
| bonginoreport.com | #256,504 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 12 more | Find emails |
| jitty.com | #256,510 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 6 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| animaljobsdirect.com | #256,556 | Bootstrap, Cloudflare Bot Management, Cloudflare Turnstile + 11 more | Find emails |
| krita-artists.org | #256,705 | Discourse, Let's Encrypt, Nginx | Find emails |
| muziker.de | #256,715 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 5 more | Find emails |
| multinational.io | #256,749 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 2 more | Find emails |
| discuss.systems | #256,788 | Azure DNS, Let's Encrypt, React | Find emails |
| homify.com.br | #256,810 | Amazon Route 53, Bunny CDN, BunnyCDN + 7 more | Find emails |
| frequencycheck.com | #256,854 | AddThis, Clicky, Cloudflare + 13 more | Find emails |
| accessloginhub.net | #256,897 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| personlookup.com.au | #257,078 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| airspacetechnologies.com | #257,187 | Cloudflare, Google Cloud, Google Fonts + 4 more | Find emails |
| ephemeraobscura.com | #257,396 | Cloudflare edge/CDN, Google Hosted Libraries, Let's Encrypt + 7 more | Find emails |
| ruby.social | #257,431 | Fastmail, Let's Encrypt, React | Find emails |
| werktuigen.com | #257,471 | Bootstrap, Google Identity Services, Google Maps + 7 more | Find emails |
| theconversation.edu.au | #257,544 | Fastly, Google Tag Manager, Let's Encrypt + 6 more | Find emails |
| teleon.tv | #257,581 | Bootstrap, Cloudflare, Cloudflare Turnstile + 7 more | Find emails |
| ai-kit.ru | #257,594 | Bootstrap, Fancybox, Google Tag Manager + 9 more | Find emails |
| immediatemomentumtrade.com | #257,696 | Datadog, Google Fonts, Google Hosted Libraries + 3 more | Find emails |
| dizzion.com | #257,789 | AWS Lambda, Amazon (ACM), Amazon CloudFront + 21 more | Find emails |
| leitstellenspiel.de | #257,845 | DigiCert, Icons8, Nginx + 4 more | Find emails |
| okmedicalboard.org | #257,894 | Amazon (ACM), Amazon Route 53, Google Analytics + 5 more | Find emails |
| goodcrowd.org | #258,041 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 4 more | Find emails |
| pkge.net | #258,082 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 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-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →