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 |
|---|---|---|---|
| tikkio.com | #379,508 | Adnuntius, Apache, Google Fonts + 10 more | Find emails |
| pilotedge.net | #379,648 | Amazon Route 53, Apache, Google Analytics + 1 more | Find emails |
| kckb.st | #379,688 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 2 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| studentsofhistory.com |
| #379,806 |
| AOS, Bluesky, Bootstrap + 20 more |
| Find emails |
| muziker.ie | #379,881 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 4 more | Find emails |
| synapsegames.com | #380,016 | Ahrefs Analytics, Amazon (ACM), Amazon CloudFront + 5 more | Find emails |
| kyber.network | #380,127 | Cloudflare, Cloudflare Bot Management, Cloudflare Turnstile + 13 more | Find emails |
| visionmonday.com | #380,137 | ASP.NET, Bootstrap, Cloudflare + 10 more | Find emails |
| magicnotes.ai | #380,204 | Cloudflare, Fastly, Google Cloud + 1 more | Find emails |
| cherokeek12.net | #380,373 | Cloudflare, Cloudflare edge/CDN, Finalsite + 4 more | Find emails |
| gacor77flow.skin | #380,411 | Big Cartel, Cloudflare, Cloudflare Bot Management + 4 more | Find emails |
| mamapedia.com | #380,453 | Cloudflare, Cloudflare edge/CDN, Discourse + 4 more | Find emails |
| boloforms.com | #380,468 | Amazon CloudFront, Amazon S3, Cloudflare + 15 more | Find emails |
| fcusd.org | #380,587 | Cloudflare edge/CDN, Finalsite, Google Tag Manager + 5 more | Find emails |
| radmirv.com | #380,613 | Cloudflare, Google Analytics, Google Tag Manager + 9 more | Find emails |
| nps.k12.va.us | #380,789 | AudioEye, Cloudflare edge/CDN, Finalsite + 5 more | Find emails |
| outlet-pc.pt | #380,791 | Cloudflare, Cloudflare edge/CDN, Let's Encrypt + 2 more | Find emails |
| cm-matosinhos.pt | #381,137 | Bluesky, DigitalOcean Spaces, Font Awesome + 8 more | Find emails |
| theshed.org | #381,255 | Cloudflare, Let's Encrypt | Find emails |
| vse-pro-sport1.com.ua | #381,344 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 3 more | Find emails |
| art.ac.ir | #381,373 | Matomo, Nginx | Find emails |
| primewire.space | #381,463 | Cloudflare, Cloudflare Web Analytics, Cloudflare edge/CDN + 3 more | Find emails |
| officiel-online.com | #381,667 | Admixer, Cloudflare, Cloudflare Web Analytics + 9 more | Find emails |
| mind-diagnostics.org | #381,676 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 3 more | Find emails |
| rajagiri.edu | #381,778 | Apache, Bootstrap, Fancybox + 14 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 →