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 |
|---|---|---|---|
| sigmoid.social | #403,839 | Let's Encrypt, Namecheap, React | Find emails |
| fgms.info | #403,955 | Bootstrap, Cloudflare, Let's Encrypt + 2 more | Find emails |
| usselfstorage.com | #404,015 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| brandpush.co |
| #404,153 |
| Bootstrap, Cloudflare, Cloudflare Web Analytics + 15 more |
| Find emails |
| skynode.eu | #404,248 | BitPay, Bootstrap, Cloudflare Turnstile + 6 more | Find emails |
| decentralization.ua | #404,330 | Axios, Bootstrap, DoubleClick (Google Ads) + 17 more | Find emails |
| blog.haus | #404,333 | Ahrefs Analytics, Amazon Route 53, Caddy + 7 more | Find emails |
| howcollect.jp | #404,516 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| enigma.com | #404,658 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| outlet-pc.com | #404,822 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 2 more | Find emails |
| healcode.com | #404,859 | Amazon Route 53, Cloudflare edge/CDN, Google Trust Services + 3 more | Find emails |
| miasanrot.de | #405,019 | Bluesky, Bootstrap, Cloudflare + 8 more | Find emails |
| searchapi.io | #405,077 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| pmmag.com | #405,463 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| peterluger.com | #405,497 | AOS, Amazon Route 53, Cloudflare edge/CDN + 8 more | Find emails |
| aabdon.com | #405,635 | Cloudflare, Datadog, Font Awesome + 9 more | Find emails |
| flightseatmap.com | #405,738 | Beehiiv, Cloudflare, Cloudflare edge/CDN + 9 more | Find emails |
| fotostudio.io | #405,788 | Crisp, Google Analytics, Google Fonts + 6 more | Find emails |
| amateureuro.com | #405,908 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 6 more | Find emails |
| pulseresearchlab.com | #406,294 | Cloudflare edge/CDN, DigitalOcean Spaces, Google Ads Conversion + 13 more | Find emails |
| workshop.codes | #406,340 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| nix-wie-weg.de | #406,404 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| eecertification.com | #406,449 | Google Analytics, Google Tag Manager, Hotwire Turbo + 7 more | Find emails |
| med-expert.com.ua | #406,484 | Google Analytics, Google Tag Manager, Let's Encrypt + 5 more | Find emails |
| icotto.jp | #406,633 | Adobe Experience Cloud (Launch), Amazon Route 53, Cloudflare Bot Management + 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 →