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 |
|---|---|---|---|
| valimail.com | #144,949 | All in One SEO, Amazon Route 53, Cloudflare Bot Management + 13 more | Find emails |
| gettyimages.hk | #144,976 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| aams.jp | #145,126 | Apache | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| recordrentacar.com |
| #145,166 |
| Cloudflare, Cloudflare edge/CDN, Cookiebot + 6 more |
| Find emails |
| mubis.es | #145,221 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 3 more | Find emails |
| catchmyparty.com | #145,223 | Awin, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| 99designs.de | #145,240 | Amazon (ACM), Amazon Route 53, Bugsnag + 3 more | Find emails |
| booxi.com | #145,241 | AWS Lambda, Amplitude, BambooHR + 19 more | Find emails |
| cyberplace.social | #145,246 | Let's Encrypt, Namecheap, React | Find emails |
| corbis.com | #145,275 | Amazon (ACM), Amazon CloudFront, Google Fonts + 2 more | Find emails |
| bradford.gov.uk | #145,303 | ASP.NET, Cloudflare, Cloudflare Bot Management + 14 more | Find emails |
| investmentweek.co.uk | #145,347 | ASP.NET, Cloudflare, Cloudflare Web Analytics + 16 more | Find emails |
| picturehouses.com | #145,495 | Bootstrap, Cloudflare, Cloudflare Bot Management + 13 more | Find emails |
| universitytutor.com | #145,551 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 4 more | Find emails |
| maventa.com | #145,578 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 7 more | Find emails |
| gorodrabot.com | #145,588 | Google Analytics, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| cronofy.com | #145,589 | Amazon Route 53, Atlassian Statuspage, Convert + 10 more | Find emails |
| devicehq.com | #145,707 | Amazon (ACM), Amazon Route 53, reCAPTCHA + 1 more | Find emails |
| csiamerica.com | #145,778 | Akamai edge/CDN, Amazon CloudFront, Atlassian Cloud + 11 more | Find emails |
| grousemountain.com | #145,786 | Apache, Google Fonts, Google Tag Manager + 6 more | Find emails |
| lndg.page | #145,802 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 1 more | Find emails |
| humhub.com | #145,811 | Caddy, Let's Encrypt, Matomo + 2 more | Find emails |
| burningmay.info | #145,812 | Bootstrap, Cloudflare, Let's Encrypt + 2 more | Find emails |
| mastodon.uno | #145,825 | Cloudflare, Let's Encrypt, React | Find emails |
| shippingeasy.com | #145,894 | 6sense, Amazon Route 53, Bootstrap + 18 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 →