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 |
|---|---|---|---|
| admaxium.com | #78,895 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| nounou-top.fr | #78,896 | Google AdSense, Google Fonts, Google Tag Manager + 6 more | Find emails |
| webconnex.com | #78,918 | AWS Lambda, Adobe Fonts (Typekit), Amazon CloudFront + 19 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| cityrealty.com | #78,992 | Bootstrap, Chart.js, Cloudflare + 17 more | Find emails |
| supergra.ua | #79,044 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 10 more | Find emails |
| baza-knig.info | #79,073 | Cloudflare, DoubleClick (Google Ads), Font Awesome + 12 more | Find emails |
| olan.ru | #79,111 | Cloudflare, Font Awesome, Let's Encrypt + 2 more | Find emails |
| cinemacity.cz | #79,250 | Bootstrap, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| sports.uz | #79,296 | Bootstrap, Fancybox, Google Analytics + 9 more | Find emails |
| pepup.life | #79,390 | Amazon CloudFront, Amazon Route 53, Cloudflare edge/CDN + 1 more | Find emails |
| karavel.com | #79,391 | Google Analytics, Google Cloud DNS, Google Tag Manager + 9 more | Find emails |
| ci-medical.com | #79,578 | Amazon (ACM), Google Tag Manager, Nginx + 2 more | Find emails |
| maimai.pro | #79,726 | AMP for WP, Bootstrap, Cloudflare + 11 more | Find emails |
| thebostoncalendar.com | #79,810 | Cloudflare, Cloudflare Turnstile, Cloudflare Web Analytics + 9 more | Find emails |
| shop.pr | #79,821 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| simplemdm.com | #79,882 | Atlassian Statuspage, Cloudflare, Contentful + 8 more | Find emails |
| infotoss.com | #79,941 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 | Find emails |
| fortimailcloud.com | #79,943 | Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 7 more | Find emails |
| transparentclassroom.com | #79,970 | Google Cloud DNS, Google Fonts, Help Scout Beacon + 4 more | Find emails |
| quizknock.com | #79,972 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 18 more | Find emails |
| vseprosport.ru | #80,010 | Bootstrap, Cloudflare, Let's Encrypt + 1 more | Find emails |
| clius.jp | #80,049 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| 100ms.live | #80,072 | Amazon CloudFront, Amazon Route 53, Atlassian Cloud + 12 more | Find emails |
| foxpost.hu | #80,104 | DigiCert, Google Fonts, Google Tag Manager + 5 more | Find emails |
| criterionchannel.com | #80,169 | Cloudflare edge/CDN, Google Analytics, Google Fonts + 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 →