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 |
|---|---|---|---|
| kipsu.com | #279,735 | AWS Lambda, Adobe Fonts (Typekit), Amazon CloudFront + 18 more | Find emails |
| gearhost.com | #279,776 | ASP.NET, Adobe Fonts (Typekit), Amazon CloudFront + 19 more | Find emails |
| sophiagenetics.com | #279,961 | Adobe Fonts, Adobe Fonts (Typekit), Amazon CloudFront + 20 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| mijnio.nl | #279,981 | Nginx, Sectigo | Find emails |
| flashpack.com | #280,133 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 17 more | Find emails |
| noc.social | #280,232 | Let's Encrypt | Find emails |
| ministryoftesting.com | #280,437 | Bluesky, Font Awesome, Google Analytics + 9 more | Find emails |
| jobhouse.jp | #280,601 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| closeby.co | #280,815 | Cloudflare, Cloudflare edge/CDN, Google Analytics + 6 more | Find emails |
| imageboss.me | #280,954 | Bugsnag, Cloudflare, Cloudflare edge/CDN + 7 more | Find emails |
| toot.cat | #281,176 | Let's Encrypt, DigitalOcean | Find emails |
| gofirmware.com | #281,252 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 8 more | Find emails |
| aquafon.com | #281,365 | Font Awesome, Google Analytics, Google Fonts + 11 more | Find emails |
| glamox.com | #281,410 | Azure API Management, Cloudflare edge/CDN, Cookie Information + 9 more | Find emails |
| camerabits.com | #281,420 | Bootstrap, Cloudflare Bot Management, Cloudflare edge/CDN + 9 more | Find emails |
| cm-aveiro.pt | #281,430 | Google Analytics, Google Tag Manager, Let's Encrypt + 2 more | Find emails |
| fmovies.cab | #281,438 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| repairshopr.com | #281,445 | Bootstrap, Cloudflare, Cloudflare Bot Management + 18 more | Find emails |
| zooplus.dk | #281,454 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 8 more | Find emails |
| pagalguy.com | #281,457 | Cloudflare, Cloudflare edge/CDN, DoubleClick (Google Ads) + 13 more | Find emails |
| new-123movies.live | #281,541 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| heinzhistorycenter.org | #281,732 | Cloudflare, Cloudflare Bot Management, Cloudflare edge/CDN + 10 more | Find emails |
| accrediteddebtrelief.com | #281,783 | Bootstrap, Cloudflare, Cloudflare Bot Management + 19 more | Find emails |
| andela.com | #281,958 | AWS Lambda, Cloudflare, Cloudflare Bot Management + 12 more | Find emails |
| marathonfoto.com | #282,079 | ASP.NET, Azure API Management, Cloudflare edge/CDN + 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 →