Ruby powers Ruby on Rails and applications such as Discourse and Redmine. Detection relies on the banners of Ruby application servers and on a detected Rails site.
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Detected Sites
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AI Score
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Fingerprints
Detect Ruby on any website:
Detected Websites
Real sites found by our scanner using Ruby
Related Technologies
Other Framework frequently used alongside Ruby
Frequently Asked Questions
What is Ruby?
Ruby powers Ruby on Rails and applications such as Discourse and Redmine. Detection relies on the banners of Ruby application servers and on a detected Rails site.
How do you detect Ruby on a website?
Our scanner analyzes multiple technical signals including HTTP response headers: server containing "Phusion Passenger|Puma|Unicorn|Thin|WEBrick|Thruster"; x-powered-by containing "Phusion Passenger|Ruby" (high-confidence tier) and Signal weights for Ruby: 85 points per high-tier match, 55 per medium, 25 per low — a site needs 60+ points before Ruby is reported. to identify Ruby usage with high accuracy.
Which websites use Ruby?
Thousands of websites use Ruby across various industries. Our real-time scanner continuously discovers new Ruby deployments — use the search above to detect any website.
Is Ruby popular?
Ruby is a widely adopted Framework in the web infrastructure space. Our scanner detects it regularly across scanned domains.
How We Detect Ruby
- HTTP response headers: server containing "Phusion Passenger|Puma|Unicorn|Thin|WEBrick|Thruster"; x-powered-by containing "Phusion Passenger|Ruby" (high-confidence tier)
- Signal weights for Ruby: 85 points per high-tier match, 55 per medium, 25 per low — a site needs 60+ points before Ruby is reported.