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 |
|---|---|---|---|
| stags.co.uk | #474,305 | Cloudflare edge/CDN, Font Awesome, Google Analytics + 5 more | Find emails |
| teskas.net | #474,377 | Cloudflare, Cloudflare edge/CDN, Discourse + 4 more | Find emails |
| uwalls.co.uk | #474,501 | Cloudflare, Cloudflare edge/CDN, Google Hosted Libraries + 5 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| uwalls.pl | #474,502 | Cloudflare, Cloudflare edge/CDN, Google Hosted Libraries + 5 more | Find emails |
| varejonline.com.br | #474,509 | Cloudflare edge/CDN, Font Awesome, Google Fonts + 13 more | Find emails |
| vworkapp.com | #474,548 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 13 more | Find emails |
| smartcash.ru | #474,699 | Google Fonts, JivoChat, Let's Encrypt + 4 more | Find emails |
| cm-vfxira.pt | #474,749 | DigitalOcean Spaces, Font Awesome, Google Analytics + 10 more | Find emails |
| pawsey.org.au | #474,773 | Amazon CloudFront, Atlassian Cloud, Atlassian Statuspage + 12 more | Find emails |
| trip-partner.jp | #474,781 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 10 more | Find emails |
| mark.ru | #474,837 | Drupal, Google Identity Services, Let's Encrypt + 5 more | Find emails |
| cheapenergy24.de | #474,893 | Google Tag Manager, Let's Encrypt, Microsoft 365 + 3 more | Find emails |
| lovegraph.me | #474,908 | A8.net, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| intertelecom.ua | #475,029 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
| environmentjob.co.uk | #475,078 | CDN Fonts, Cloudflare, Cloudflare Turnstile + 9 more | Find emails |
| kadaza.nl | #475,162 | Awin, Bootstrap, Cloudflare + 6 more | Find emails |
| nsd.org | #475,173 | Cloudflare edge/CDN, Finalsite, Google Tag Manager + 3 more | Find emails |
| kyusai.co.jp | #475,207 | Amazon (ACM), Microsoft 365, New Relic + 2 more | Find emails |
| mooreschools.com | #475,254 | Cloudflare Web Analytics, Cloudflare edge/CDN, Finalsite + 4 more | Find emails |
| wallingford.k12.ct.us | #475,327 | Cloudflare Web Analytics, Cloudflare edge/CDN, Finalsite + 4 more | Find emails |
| wcschools.com | #475,368 | AudioEye, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| nauk.si | #475,507 | Google Analytics, Google Hosted Libraries, jQuery | Find emails |
| worst-behavior.com | #475,630 | Cloudflare edge/CDN, Ionic Framework, Klaviyo + 9 more | Find emails |
| trophieshunter.com | #475,693 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| tranbi.com | #475,707 | Amazon (ACM), Amazon CloudFront, Google Tag Manager + 2 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 →