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 |
|---|---|---|---|
| onlineu.com | #294,275 | Amazon (ACM), Amazon Route 53, Google Fonts + 2 more | Find emails |
| masto.es | #294,369 | Let's Encrypt, React | Find emails |
| custom-writing.org | #294,504 | Google Tag Manager, Let's Encrypt, Namecheap + 2 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| comelitdns.com |
| #294,551 |
| Nginx, jQuery |
| Find emails |
| inppmayfinder.info | #294,657 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 3 more | Find emails |
| youtrust.jp | #294,680 | Amazon (ACM), Amazon Route 53, Google Analytics + 6 more | Find emails |
| tag-plus.com | #294,805 | Font Awesome, Google Hosted Libraries, Google Tag Manager + 4 more | Find emails |
| lastminute-cottages.co.uk | #294,859 | Amazon (ACM), Amazon CloudFront, Nginx + 1 more | Find emails |
| cerkl.com | #294,925 | AWS Lambda, Amazon CloudFront, Atlassian Cloud + 31 more | Find emails |
| lootkeeper.com | #294,991 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| eupolicy.social | #295,057 | Caddy, Let's Encrypt, Proton Mail | Find emails |
| calculate.plus | #295,061 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| metrodoporto.pt | #295,125 | Cloudflare, Google Analytics, Google Fonts + 4 more | Find emails |
| smssnsk.ru | #295,179 | Bootstrap, Google Tag Manager, Nginx | Find emails |
| doublealpha.biz | #295,393 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 3 more | Find emails |
| yopi.de | #295,425 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 4 more | Find emails |
| rzhas.de | #295,426 | Better Uptime, DoubleClick (Google Ads), Google Tag Manager + 13 more | Find emails |
| samoaobserver.ws | #295,456 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| vehileaks.com | #295,680 | Cloudflare, Cloudflare Turnstile, Cloudflare edge/CDN + 5 more | Find emails |
| international-schools-database.com | #295,687 | CookieYes, Font Awesome, Google Analytics + 3 more | Find emails |
| apexlink.to | #295,705 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 1 more | Find emails |
| tanukishop.com | #296,015 | Bootstrap, Cloudflare, Font Awesome + 11 more | Find emails |
| bighand.com | #296,161 | AOS, Adobe Fonts (Typekit), Cloudflare + 13 more | Find emails |
| senken.co.jp | #296,183 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| profe.social | #296,284 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 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 →