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 |
|---|---|---|---|
| fractory.com | #370,280 | Amazon (ACM), Amazon Route 53, Apache + 18 more | Find emails |
| pushcode.jp | #370,386 | AWS Lambda, Cloudflare edge/CDN, Google Fonts + 10 more | Find emails |
| husd.org | #370,572 | AudioEye, Cloudflare Web Analytics, Cloudflare edge/CDN + 6 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| calculatestuff.com | #370,611 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 7 more | Find emails |
| retro.pizza | #370,774 | Let's Encrypt, React | Find emails |
| cubesugar.com | #370,805 | Amazon (ACM), Amazon Route 53, Backbone.js + 10 more | Find emails |
| alua.com | #370,808 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 8 more | Find emails |
| nayapay.com | #370,937 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| sexvideoshot.com | #371,014 | Cloudflare, Let's Encrypt, Nginx | Find emails |
| writingclasses.com | #371,119 | Bluesky, Bootstrap, Cloudflare + 10 more | Find emails |
| qargo.com | #371,208 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 17 more | Find emails |
| uwalls.de | #371,366 | Cloudflare, Cloudflare edge/CDN, Google Hosted Libraries + 5 more | Find emails |
| yaentrainement.fr | #371,567 | Amazon Route 53, Google Analytics, Google Hosted Libraries + 9 more | Find emails |
| discovermoosejaw.com | #371,582 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 9 more | Find emails |
| mu.edu.et | #371,641 | Bootstrap, Font Awesome, Google Analytics + 8 more | Find emails |
| loomio.org | #371,778 | Bluesky, Cloudflare, Cloudflare edge/CDN + 6 more | Find emails |
| eventtemple.com | #371,863 | AWS Lambda, AdRoll, Amazon CloudFront + 27 more | Find emails |
| 30min.jp | #371,877 | Font Awesome, Google AdSense, Google Tag Manager + 4 more | Find emails |
| skyjake.fi | #371,999 | Let's Encrypt, Proton Mail | Find emails |
| xt-labs.in | #372,012 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 12 more | Find emails |
| belfastmedia.com | #372,342 | Google Analytics, Google Tag Manager, Let's Encrypt + 4 more | Find emails |
| arcadegamesarena.com | #372,344 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| brookstreet.co.uk | #372,580 | Amazon (ACM), Amazon CloudFront, Cloudflare + 3 more | Find emails |
| summerreadingchallenge.org.uk | #372,586 | Adobe Fonts (Typekit), Cloudflare, Cloudflare Web Analytics + 12 more | Find emails |
| mi-home.pl | #372,614 | Cloudflare, Cloudflare edge/CDN, Cloudinary + 11 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 →