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 |
|---|---|---|---|
| register365.com | #571,163 | Amazon CloudFront, Apache, Atlassian Cloud + 10 more | Find emails |
| ukreiif.com | #571,233 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 10 more | Find emails |
| kalixhealth.com | #571,289 | AOS, Atlassian Cloud, Atlassian Statuspage + 25 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| palai.org | #571,298 | Let's Encrypt, Nginx | Find emails |
| sjusd.org | #571,302 | AudioEye, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| mansfieldisd.org | #571,350 | AudioEye, Cloudflare edge/CDN, Finalsite + 3 more | Find emails |
| trypurisaki.com | #571,363 | Cloudflare, Cloudflare edge/CDN, ConsentMo + 11 more | Find emails |
| chipsmall-nl.com | #571,610 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| vensport.com | #571,672 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| violin-88.com | #571,722 | Cloudflare, Cloudflare edge/CDN, Datadog + 6 more | Find emails |
| channex.io | #571,725 | Better Uptime, Cloudflare, Cloudflare Turnstile + 16 more | Find emails |
| runteq.jp | #571,728 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| vinmatchpro.com | #571,743 | Let's Encrypt, New Relic, Nginx + 2 more | Find emails |
| greenpost.ua | #571,758 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| pmpclearinghouse.net | #571,837 | Amazon (ACM), Amazon Route 53, New Relic + 2 more | Find emails |
| fap.mil.pe | #571,913 | Cloudflare, DigiCert, Google Tag Manager | Find emails |
| edicy.net | #571,989 | CookieYes, Let's Encrypt, Meta Pixel | Find emails |
| redstarpoker.com | #572,067 | Cloudflare, Let's Encrypt, Nginx + 1 more | Find emails |
| thinkmoney.co.uk | #572,092 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 15 more | Find emails |
| usa-llc-filing.com | #572,262 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 16 more | Find emails |
| testingbot.com | #572,277 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| yohopower.tw | #572,324 | Google Tag Manager, Let's Encrypt, YouTube | Find emails |
| bubago.co | #572,451 | Cloudflare, Cloudflare edge/CDN, Font Awesome + 19 more | Find emails |
| dashclicks.com | #573,007 | AWS Lambda, Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| myips.org | #573,063 | Cloudflare, Cloudflare edge/CDN, Finalsite + 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 →