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 |
|---|---|---|---|
| kolide.co | #566,942 | Amazon (ACM), Amazon CloudFront, Amazon S3 + 7 more | Find emails |
| 3dbuy.ru | #567,326 | DDoS-Guard, Fancybox, JivoChat + 5 more | Find emails |
| farm-equipment.com | #567,399 | Broadstreet, Cloudflare, Cloudflare Web Analytics + 6 more | Find emails |
| #184 (Tranco) |
| Find emails |
| 5 | gov.uk | #290 (Tranco) | Find emails |
| usadatanet.com | #567,405 | Cloudflare, Cloudflare edge/CDN, Datadog + 7 more | Find emails |
| cobrefacil.com.br | #567,477 | AOS, Adobe Fonts (Typekit), Bootstrap + 16 more | Find emails |
| bergamotte.fr | #567,534 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 9 more | Find emails |
| roses.co.uk | #567,645 | Adobe Fonts (Typekit), Awin, Bootstrap + 18 more | Find emails |
| duel.tech | #567,671 | ClickTale (Contentsquare), Cloudflare, Cloudflare Bot Management + 20 more | Find emails |
| tazmining.ch | #567,694 | Bootstrap, Font Awesome, Google Analytics + 6 more | Find emails |
| corrections.com | #567,772 | Google AdSense, Google Analytics, Nginx + 1 more | Find emails |
| yorkcountyschools.org | #568,341 | Cloudflare edge/CDN, Finalsite, Google Tag Manager + 3 more | Find emails |
| uaflag.com | #568,371 | Cloudflare edge/CDN, Elfsight, Google Analytics + 8 more | Find emails |
| avtosfer.az | #568,580 | AdRiver, Cloudflare, Cloudflare edge/CDN + 5 more | Find emails |
| pinrecetas.com | #568,587 | Cloudinary, Datadog, Google Analytics + 6 more | Find emails |
| bydeurope.com | #568,798 | Google Fonts, Hotwire Turbo, Let's Encrypt + 5 more | Find emails |
| parcom.net | #569,074 | Cloudflare, Cloudflare edge/CDN, Google Fonts + 4 more | Find emails |
| rccchina.com | #569,352 | Alibaba Cloud DNS, Baidu Analytics, CNZZ + 4 more | Find emails |
| merelinwonderland.nl | #569,428 | Cloudflare Bot Management, Cloudflare edge/CDN, Fancybox + 7 more | Find emails |
| fqparts.com | #569,464 | Cloudflare edge/CDN, Let's Encrypt, Shopify + 6 more | Find emails |
| svetonov.ru | #569,521 | DDoS-Guard, Google Analytics, Let's Encrypt + 3 more | Find emails |
| fjb100.com | #569,643 | Amazon CloudFront, Cloudflare, Cloudflare edge/CDN + 4 more | Find emails |
| motorlist.it | #569,747 | Bootstrap, Cloudflare, Cloudflare edge/CDN + 8 more | Find emails |
| printivity.com | #569,801 | Cloudflare, Cloudflare edge/CDN, Google Trust Services + 1 more | Find emails |
| componentcontrol.com | #569,835 | Google Analytics, Google Tag Manager, Pardot + 4 more | Find emails |
| playstarfleet.com | #569,840 | Amazon (ACM), Amazon Route 53, Google Analytics + 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 →