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 |
|---|---|---|---|
| nhipsongkinhdoanh.vn | #672,738 | Bootstrap, Cloudflare, Font Awesome + 6 more | Find emails |
| midlandisd.net | #672,811 | Cloudflare edge/CDN, Google Tag Manager, Let's Encrypt + 1 more | Find emails |
| hpcsd.org | #672,903 | Cloudflare Web Analytics, Cloudflare edge/CDN, Finalsite + 3 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| bokss.org.hk | #673,061 | Apache, Bootstrap, Font Awesome + 4 more | Find emails |
| kokitotof.com | #673,281 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 2 more | Find emails |
| sabatoto11.com | #673,285 | Cloudflare, Cloudflare edge/CDN, Datadog + 6 more | Find emails |
| cbsd.org | #673,336 | Cloudflare edge/CDN, Finalsite, Google Tag Manager + 3 more | Find emails |
| conservativehq.com | #673,607 | Adobe Fonts (Typekit), Bootstrap, Font Awesome + 11 more | Find emails |
| trade.gov.uk | #673,633 | Amazon Route 53, Fastly, Microsoft 365 + 2 more | Find emails |
| paydayloansindiana.org | #673,662 | Cloudinary, Google AMP, Let's Encrypt + 2 more | Find emails |
| skiyaki.com | #673,667 | Amazon Route 53, DigiCert, Google Analytics + 3 more | Find emails |
| paytner.co.jp | #673,710 | A8.net, Amazon (ACM), Amazon CloudFront + 8 more | Find emails |
| astiberri.com | #673,806 | Amazon Route 53, Bluesky, Let's Encrypt + 1 more | Find emails |
| artistpigments.org | #674,081 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 4 more | Find emails |
| detectlanguage.com | #674,137 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| imuzik.com.vn | #674,205 | Bootstrap, Font Awesome, Google Analytics + 5 more | Find emails |
| kpop.social | #674,224 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| appbot.co | #674,383 | AOS, Amazon (ACM), Amazon CloudFront + 14 more | Find emails |
| oern.expert | #674,546 | Bootstrap, JivoChat, Let's Encrypt + 2 more | Find emails |
| omo-es.com | #674,565 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 4 more | Find emails |
| cityofbasketballlove.com | #674,595 | Adobe Fonts (Typekit), Cloudflare edge/CDN, Google Fonts + 5 more | Find emails |
| maxingvest.de | #674,665 | Bootstrap, Font Awesome, Let's Encrypt + 1 more | Find emails |
| renttoown.org | #674,680 | Amazon (ACM), Amazon Route 53, Font Awesome + 7 more | Find emails |
| parkapp.com | #674,732 | Apache, Font Awesome, Google Tag Manager + 7 more | Find emails |
| disdukcapilkotapagaralam.com | #675,174 | Cloudflare, Cloudflare edge/CDN, Cloudinary + 7 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 →