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 |
|---|---|---|---|
| uniontestprep.com | #73,891 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| dentonisd.org | #73,952 | Cloudflare edge/CDN, Finalsite, Google Tag Manager + 1 more | Find emails |
| kktix.cc | #74,015 | Amazon (ACM), Amazon Route 53, Cloudflare Turnstile + 2 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| chariloto.com | #74,070 | Amazon (ACM), Amazon Route 53, Google Analytics + 9 more | Find emails |
| beth.k12.pa.us | #74,120 | Cloudflare edge/CDN, Finalsite, Font Awesome + 4 more | Find emails |
| muscache.cn | #74,259 | Alibaba Cloud DNS, Bugsnag, DataDome + 2 more | Find emails |
| lacartoons.com | #74,293 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| earthquaketrack.com | #74,371 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| audiogon.com | #74,396 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 4 more | Find emails |
| ibjapan.com | #74,566 | Amazon (ACM), Amazon Route 53, Apache + 9 more | Find emails |
| zight.com | #74,626 | Amazon CloudFront, Amazon Route 53, Atlassian Cloud + 18 more | Find emails |
| primeraplus.com.mx | #74,648 | Amazon Route 53, Bootstrap, Cloudflare edge/CDN + 16 more | Find emails |
| teambuilding.com | #74,851 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 3 more | Find emails |
| optimispt.com | #75,069 | Amazon Route 53, Apache, Google Analytics + 6 more | Find emails |
| tobu.co.jp | #75,111 | Apache, Fastly, Google Tag Manager + 1 more | Find emails |
| crossword-solver.io | #75,129 | Cloudflare, Cloudflare edge/CDN, Datadog + 9 more | Find emails |
| audioaddict.com | #75,151 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| colcampus.com | #75,160 | Google Analytics, Google Tag Manager, Nginx + 2 more | Find emails |
| rev.iq | #75,173 | Better Uptime, Cloudflare, Cloudflare Web Analytics + 20 more | Find emails |
| airbnb.pl | #75,353 | Akamai Bot Manager, Amazon Route 53, Bugsnag + 2 more | Find emails |
| collegevine.com | #75,363 | AWS Lambda, Amazon Route 53, Bootstrap + 15 more | Find emails |
| mechanicdesk.com.au | #75,402 | AddThis, Amazon (ACM), Amazon Route 53 + 17 more | Find emails |
| stacksocial.com | #75,520 | Adobe Fonts (Typekit), Cloudflare, Let's Encrypt + 7 more | Find emails |
| gearset.com | #75,532 | Amplitude, Cloudflare, Cloudflare edge/CDN + 15 more | Find emails |
| sleazyfork.org | #75,534 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 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 →