Detect mod_rails
Mod_rails is a free web server and application server with support for Ruby, Python and Node.js.
Detection looks at response headers across 2 fingerprint rules among the site's public responses.
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Websites using mod_rails
Loading website list…
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Signal classes
PluginView evaluates public page signals in these classes when identifying mod_rails. Individual fingerprint rule bodies are proprietary and are not published.
- Response headers
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Example public indicators for mod_rails
Illustrative indicators derived from public catalog metadata for mod_rails. A live scan may match additional proprietary rules beyond these examples.
- server: mod_rails/?
- x-powered-by: mod_rails/?
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known mod_rails signature (2 rules) at the time of the scan.
- Does not establish
- A sitewide install of mod_rails, an active vendor contract, exclusive use, or that mod_rails is still in place today.
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How to check a site for mod_rails
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest mod_rails signals.
- 2. PluginView reads only public responses (response headers) and scores them against the mod_rails signature set (2 rules).
- 3. Review the confidence score and text explanation for mod_rails on the results page.
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Commonly implies
A confirmed mod_rails match also implies these technologies are present.
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FAQ: detecting mod_rails
- Can PluginView detect mod_rails without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for mod_rails — typically response headers. It does not bypass authentication or paywalls.
- What category is mod_rails?
- mod_rails is classified under Web server extensions in the PluginView directory.
- How many fingerprint rules cover mod_rails?
- This reference currently tracks 2 fingerprint rules across response headers. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses mod_rails?
- Illustrative public indicators for mod_rails include server: mod_rails/?; x-powered-by: mod_rails/?. A live scan may match additional proprietary rules beyond these examples.
