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 |
|---|---|---|---|
| houstoniamag.com | #118,117 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 2 more | Find emails |
| topsmarkets.com | #118,124 | Amazon (ACM), Apache, Bootstrap + 15 more | Find emails |
| cutoutandkeep.net | #118,182 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| docfly.com | #118,186 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 9 more | Find emails |
| changelog.com | #118,278 | Better Uptime, Bluesky, DoubleClick (Google Ads) + 13 more | Find emails |
| rpubs.com | #118,336 | Adobe Fonts (Typekit), Amazon (ACM), Amazon Route 53 + 4 more | Find emails |
| thalia-apps.com | #118,348 | Bugsnag, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| tk-kit.net | #118,423 | Bootstrap, Fancybox, Font Awesome + 9 more | Find emails |
| abus-server.com | #118,448 | Friendly Captcha, Nginx, OneTrust + 1 more | Find emails |
| lmu-klinikum.de | #118,468 | Amazon (ACM), Amazon Route 53, Bluesky + 3 more | Find emails |
| mstdn.ca | #118,488 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 1 more | Find emails |
| storyweaver.org.in | #118,496 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| webtexts.com | #118,516 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 2 more | Find emails |
| teratail.com | #118,523 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 16 more | Find emails |
| bronxzoo.com | #118,528 | Amazon (ACM), Google Analytics, Google Tag Manager + 4 more | Find emails |
| rapgenius.com | #118,542 | Amazon Advertising, Cloudflare, Cloudflare Bot Management + 8 more | Find emails |
| cafepharma.com | #118,575 | Apache, Bootstrap, Buy Me a Coffee + 14 more | Find emails |
| sugardaddy.com | #118,667 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 7 more | Find emails |
| honestdocs.id | #118,709 | Campaign Monitor, Cloudflare, Cloudflare edge/CDN + 3 more | Find emails |
| bookthatapp.com | #118,777 | AWS Lambda, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| food-safety.com | #118,778 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| apobank.de | #118,807 | Apache, Cloudflare edge/CDN, Friendly Captcha + 4 more | Find emails |
| e-xecutive.ru | #118,816 | Google Fonts, Let's Encrypt, Nginx + 4 more | Find emails |
| burningapril.info | #118,894 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 3 more | Find emails |
| storerocket.io | #118,899 | Ahrefs Analytics, ChatGPT Ads Pixel, Cloudflare + 15 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 →