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 |
|---|---|---|---|
| big.go.id | #557,132 | Apache, Bootstrap, DigiCert + 10 more | Find emails |
| littlewonderland.de | #557,213 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 12 more | Find emails |
| easyloginforme.app | #557,239 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| pittsburghsymphony.org | #557,401 | Adobe Fonts (Typekit), Amazon (ACM), Amazon CloudFront + 4 more | Find emails |
| aday.fr | #557,432 | AWS Lambda, Axeptio, Cloudflare edge/CDN + 18 more | Find emails |
| greatquestion.co | #557,728 | AWS Lambda, Amazon CloudFront, ChatGPT Ads Pixel + 23 more | Find emails |
| murrieta.k12.ca.us | #557,745 | AudioEye, Cloudflare edge/CDN, Finalsite + 4 more | Find emails |
| truckit.net | #557,852 | AOS, Amazon (ACM), Bootstrap + 23 more | Find emails |
| whichav.video | #557,898 | Bootstrap, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| craftcourses.com | #557,918 | Bootstrap, Bunny Fonts, Cloudflare + 13 more | Find emails |
| yogaworks.com | #558,060 | AOS, Amazon Route 53, Cloudflare Bot Management + 17 more | Find emails |
| bankatfidelity.com | #558,070 | Glia, Google Analytics, Google Tag Manager + 5 more | Find emails |
| pitbulltax.com | #558,121 | AdRoll, Amazon Route 53, Bootstrap + 18 more | Find emails |
| his.ua | #558,150 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 10 more | Find emails |
| pop-music.ca | #558,244 | Cloudflare Bot Management, Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| avk-com.ru | #558,864 | Hotwire Turbo, Let's Encrypt, Nginx + 2 more | Find emails |
| bitiba.es | #558,929 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| catalogchoice.org | #559,269 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 1 more | Find emails |
| thebookkeepingchallenge.com | #559,321 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 4 more | Find emails |
| rompslomp.nl | #559,328 | Amazon Route 53, Cloudflare Bot Management, Cloudflare edge/CDN + 11 more | Find emails |
| donmarwarehouse.com | #559,340 | Amazon CloudFront, Bluesky, Civic Cookie Control + 9 more | Find emails |
| alexandros.jp | #559,389 | Amazon Route 53, DigiCert, Google Ads Conversion + 10 more | Find emails |
| mrh.show | #559,425 | Cloudflare, GitHub, GitHub Pages + 2 more | Find emails |
| wearecommunity.io | #559,524 | Amazon Route 53, Amplitude, Cloudflare Bot Management + 6 more | Find emails |
| bluecotton.com | #559,577 | Adobe Fonts, Adobe Fonts (Typekit), Bootstrap + 12 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 →