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 |
|---|---|---|---|
| colta.ru | #89,455 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| medicalpass.jp | #89,460 | Amazon (ACM), Amazon Route 53, Nginx | Find emails |
| bidhistory.org | #89,488 | Bootstrap, Cloudflare, Cloudflare Turnstile + 11 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| grain.org |
| #89,522 |
| Bluesky, Cloudflare, Cloudflare Web Analytics + 8 more |
| Find emails |
| icanw.org | #89,646 | Adobe Fonts (Typekit), Bluesky, Bootstrap + 18 more | Find emails |
| relief-ticket.jp | #89,655 | Amazon CloudFront, Amazon Route 53, Apache + 5 more | Find emails |
| 4book.org | #89,677 | Google AdSense, Google Analytics, Google Tag Manager + 4 more | Find emails |
| greenpeace.fr | #89,734 | Google Tag Manager, Hotwire Turbo, Let's Encrypt + 8 more | Find emails |
| kidtoys.site | #89,787 | Google AdSense, Google Analytics, Google Fonts + 7 more | Find emails |
| kuasark.com | #89,849 | Google AdSense, Let's Encrypt, Nginx + 1 more | Find emails |
| smartsitter.jp | #89,972 | Amazon (ACM), Amazon Route 53, Google Analytics + 2 more | Find emails |
| algoriddim.com | #90,001 | Amazon (ACM), Amazon Route 53, Cookie-Script + 2 more | Find emails |
| consumersadvocate.org | #90,038 | Amazon CloudFront, Cloudflare, Cloudflare Bot Management + 3 more | Find emails |
| rajabandotdamai34.com | #90,256 | Cloudflare edge/CDN, Cloudinary, Datadog + 7 more | Find emails |
| toto12line.com | #90,257 | Cloudflare, Cloudflare edge/CDN, Cloudinary + 6 more | Find emails |
| usahockey.com | #90,495 | AdRoll, Cloudflare edge/CDN, DoubleClick (Google Ads) + 9 more | Find emails |
| myspike.my | #90,523 | Apache, Bootstrap, Font Awesome + 4 more | Find emails |
| bosjoko90.com | #90,556 | Cloudflare, Cloudflare edge/CDN, DigitalOcean Spaces + 2 more | Find emails |
| ric.edu | #90,659 | Adobe Fonts (Typekit), Drupal, Font Awesome + 9 more | Find emails |
| superrare.com | #90,675 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 6 more | Find emails |
| visiblebody.com | #90,687 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 15 more | Find emails |
| gamapecas.com.br | #90,729 | Cloudflare, Cloudflare edge/CDN, Google AdSense + 2 more | Find emails |
| milled.com | #90,833 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 11 more | Find emails |
| latestspecials.co.za | #90,869 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 5 more | Find emails |
| aus.social | #90,948 | Let's Encrypt, React | 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 →