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 |
|---|---|---|---|
| testcatalog.org | #255,040 | Akamai Edge DNS, Akamai edge/CDN, Akamai mPulse + 5 more | Find emails |
| tupalo.co | #255,080 | Amazon Route 53, Google Analytics, HTMX + 3 more | Find emails |
| lucency.com | #255,116 | Amazon (ACM), Amazon Route 53, Google Analytics + 2 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| satelliteandearthviewmaps.com | #255,221 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| dividendmax.com | #255,226 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 7 more | Find emails |
| braathe.no | #255,251 | Amazon CloudFront, Atlassian Cloud, Cookie-Script + 12 more | Find emails |
| romo.com | #255,318 | Adobe Fonts (Typekit), Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| fdb.pl | #255,360 | Google AdSense, Google Analytics, Google Tag Manager + 5 more | Find emails |
| howler.co.za | #255,372 | Amazon Route 53, CookieYes, Freshchat + 8 more | Find emails |
| beboss.ru | #255,384 | Nginx, PHP | Find emails |
| katyisd.org | #255,430 | AudioEye, Cloudflare edge/CDN, Finalsite + 5 more | Find emails |
| 99minds.io | #255,438 | AOS, Amazon Route 53, Astro + 15 more | Find emails |
| grokholsky.com | #255,483 | Cloudflare, Cloudflare edge/CDN, Google Tag Manager + 4 more | Find emails |
| onlineweatherforecast.info | #255,545 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| lacotto.jp | #255,643 | Amazon (ACM), Amazon Route 53, Font Awesome + 6 more | Find emails |
| theappliancesales.co.uk | #255,657 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 9 more | Find emails |
| svusd.org | #255,699 | Adobe Fonts (Typekit), Cloudflare Web Analytics, Cloudflare edge/CDN + 7 more | Find emails |
| nflallday.com | #255,725 | AWS Lambda, Adobe Fonts (Typekit), Amazon CloudFront + 36 more | Find emails |
| boaterexam.com | #255,737 | Amazon CloudFront, Cloudflare, Cloudflare Bot Management + 14 more | Find emails |
| preparedfoods.com | #255,884 | Brightcove, Cloudflare, Cloudflare Web Analytics + 8 more | Find emails |
| 77s.events | #256,009 | Cloudflare Stream, Cloudflare Turnstile, Cloudflare edge/CDN + 6 more | Find emails |
| audacious-media-player.org | #256,048 | Google Hosted Libraries, Let's Encrypt, Nginx + 2 more | Find emails |
| blaze.ai | #256,098 | AWS Lambda, Cloudflare, Cloudflare edge/CDN + 13 more | Find emails |
| imajize.com | #256,148 | Google Analytics, Google Tag Manager, Hotwire Turbo + 5 more | Find emails |
| 99designs.co.uk | #256,193 | Amazon (ACM), Amazon Route 53, Bugsnag + 3 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 →