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 |
|---|---|---|---|
| konzum.hr | #75,546 | Amazon CloudFront, Google Fonts, Google Tag Manager + 1 more | Find emails |
| key-components.com | #75,597 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 2 more | Find emails |
| culinaryagents.com | #75,670 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 4 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| airbnb.be | #75,749 | Amazon Route 53, Bugsnag, DataDome + 2 more | Find emails |
| oxfordowl.co.uk | #75,777 | Amazon (ACM), Amazon Route 53, Google Tag Manager + 4 more | Find emails |
| book18.org | #75,782 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| chintai-ex.jp | #75,898 | Apache, Criteo, DoubleClick (Google Ads) + 2 more | Find emails |
| opensanctions.org | #75,949 | Better Uptime, Cloudflare edge/CDN, DoubleClick (Google Ads) + 15 more | Find emails |
| xn----7sbbigkqq2acllnkfgck.xn--p1ai | #76,000 | Bootstrap, Let's Encrypt, Nginx + 2 more | Find emails |
| airbnb.ae | #76,035 | Amazon Route 53, Bugsnag, DataDome + 2 more | Find emails |
| productplan.com | #76,077 | AWS Lambda, BambooHR, Cloudflare + 13 more | Find emails |
| sofatutor.com | #76,144 | Amazon (ACM), Amazon Route 53, Google Ads Conversion + 9 more | Find emails |
| kuragebunch.com | #76,237 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| getsmarter.com | #76,246 | Adobe Fonts (Typekit), Amazon CloudFront, Amazon Route 53 + 13 more | Find emails |
| auktionshuset.dk | #76,251 | Azure Front Door, Cookie Information, DigiCert + 14 more | Find emails |
| wanikani.com | #76,355 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| seadwelling.com | #76,359 | Bootstrap, Cloudflare edge/CDN, Google Analytics + 7 more | Find emails |
| labola.jp | #76,363 | Amazon (ACM), Amazon Route 53, AnyMind Group + 8 more | Find emails |
| infox.ru | #76,381 | Mail.ru Analytics (Top100), Nginx, Telegram + 2 more | Find emails |
| bsale.cl | #76,395 | Amazon (ACM), Amazon Route 53, Bootstrap + 15 more | Find emails |
| codelinaro.org | #76,407 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| gigapan.org | #76,460 | Apache, Blogger, DoubleClick (Google Ads) + 9 more | Find emails |
| gettyimages.ie | #76,506 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| c.im | #76,568 | Cloudflare, Cloudflare edge/CDN, Google Trust Services | Find emails |
| spotlightr.com | #76,592 | Apache, CDN Fonts, CrazyEgg + 17 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 →