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 |
|---|---|---|---|
| nit.ac.ir | #414,718 | AOS, Bootstrap, Font Awesome + 5 more | Find emails |
| graphiste.com | #414,722 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| servoyforge.net | #414,820 | Apache, Let's Encrypt, Matomo + 1 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| kojodan.jp | #415,128 | Apache, Bootstrap, Cloudflare + 18 more | Find emails |
| zonezero.com | #415,148 | Amazon Route 53, Apache, Let's Encrypt + 1 more | Find emails |
| peacehavenfederal.com | #415,215 | Cloudflare, Cloudflare edge/CDN, Cloudinary + 8 more | Find emails |
| mokum.place | #415,483 | Amazon Route 53, Gravatar, Let's Encrypt + 1 more | Find emails |
| convertflow.com | #415,617 | AWS Lambda, Adobe Fonts (Typekit), Cloudflare edge/CDN + 22 more | Find emails |
| webtranslateit.com | #415,879 | Fastmail, Google Analytics, Google Fonts + 4 more | Find emails |
| omakaseje.com | #416,070 | Cloudflare edge/CDN, Datadog, Google Ads Conversion + 7 more | Find emails |
| cowcamo.jp | #416,282 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| nomads-notebook.com | #416,306 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 | Find emails |
| rcboe.org | #416,436 | AudioEye, Cloudflare edge/CDN, Finalsite + 5 more | Find emails |
| kamatamare.jp | #416,498 | Amazon CloudFront, Bootstrap, Embedly + 11 more | Find emails |
| azerbaijan.az | #416,710 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 5 more | Find emails |
| matthewnawrockidmd.com | #416,744 | Cloudflare, Cloudflare edge/CDN, Cloudinary + 6 more | Find emails |
| traveltripper.io | #416,750 | Amazon (ACM), Amazon Route 53, Apache + 3 more | Find emails |
| specialstl.com | #416,765 | Cloudflare, Google Analytics, Google Fonts + 3 more | Find emails |
| donnuet.ru | #416,950 | Bootstrap, Font Awesome, Google Fonts + 9 more | Find emails |
| pmnts.io | #417,019 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 3 more | Find emails |
| idcflare.com | #417,144 | Cloudflare, Cloudflare edge/CDN, Discourse + 3 more | Find emails |
| dockersmuskegon.com | #417,398 | Cloudflare, Cloudflare edge/CDN, Cloudinary + 7 more | Find emails |
| talentbrand.com.br | #417,512 | AWS Lambda, Adopt, Amazon Route 53 + 17 more | Find emails |
| simployer.com | #417,607 | Bootstrap, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| uriage.com | #417,683 | Cloudflare, Google Hosted Libraries, 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 →