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 |
|---|---|---|---|
| konkurssihuutokauppa.fi | #381,802 | Google Analytics, Google Tag Manager, Let's Encrypt + 3 more | Find emails |
| tiktokacademy.com | #381,857 | Akamai Edge DNS, Amazon (ACM), Google Analytics + 2 more | Find emails |
| pianokafe.com | #381,978 | Bootstrap, Font Awesome, Let's Encrypt + 7 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| igbau.de | #382,196 | Apache, Bluesky, Matomo + 2 more | Find emails |
| emailipleak.com | #382,254 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 2 more | Find emails |
| akhtaboot.com | #382,261 | Cloudflare, DoubleClick (Google Ads), Font Awesome + 14 more | Find emails |
| vitadvice.com | #382,335 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Fonts + 3 more | Find emails |
| sleepstation.org.uk | #382,398 | Apache, CookieYes, DigiCert + 8 more | Find emails |
| warhorn.net | #382,435 | Google Analytics, Google Tag Manager, Let's Encrypt + 1 more | Find emails |
| programmerclick.com | #382,447 | Cloudflare, Cloudflare edge/CDN, Cloudinary + 10 more | Find emails |
| techreviewer.co | #382,515 | AWS Lambda, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| reasonthread.com | #382,633 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 | Find emails |
| sleza.media | #382,747 | Hotwire Turbo, Let's Encrypt, Qrator + 1 more | Find emails |
| medpeer.jp | #382,899 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| evotravelagent.com | #382,941 | Bootstrap, Font Awesome, Google Analytics + 11 more | Find emails |
| creditspring.co.uk | #383,003 | Amazon (ACM), Amazon CloudFront, Bootstrap + 21 more | Find emails |
| mstdn.science | #383,105 | Cloudflare, Let's Encrypt | Find emails |
| webadmit.org | #383,213 | Amazon (ACM), Amazon Route 53, New Relic + 1 more | Find emails |
| orthodox-world.org | #383,402 | AddThis, Bootstrap, Cloudflare + 22 more | Find emails |
| lvusd.org | #383,487 | Atlassian Statuspage, Cloudflare, Cloudflare Web Analytics + 13 more | Find emails |
| amex-kreditkarten.de | #383,508 | Akamai Edge DNS, Apache, DigiCert + 2 more | Find emails |
| changyijiajiaoye.com | #383,792 | DoubleClick (Google Ads), Google Analytics, Google Maps + 4 more | Find emails |
| igotitadmin.com | #383,929 | Font Awesome, Ionic Framework, Let's Encrypt | Find emails |
| kindly.ai | #383,960 | AWS Lambda, Cloudflare edge/CDN, Font Awesome + 19 more | Find emails |
| cofepris.gob.mx | #384,248 | Akamai edge/CDN, Akamai mPulse, DigiCert + 6 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 →