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