Detect CentOS
CentOS is a Linux distribution that provides a free, community-supported computing platform functionally compatible with its upstream source, Red Hat Enterprise Linux (RHEL).
Detection looks at response headers across 2 fingerprint rules among the site's public responses.
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Websites using CentOS
Loading website list…
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Signal classes
PluginView evaluates public page signals in these classes when identifying CentOS. Individual fingerprint rule bodies are proprietary and are not published.
- Response headers
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Example public indicators for CentOS
Illustrative indicators derived from public catalog metadata for CentOS. A live scan may match additional proprietary rules beyond these examples.
- server: CentOS
- x-powered-by: CentOS
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known CentOS signature (2 rules) at the time of the scan.
- Does not establish
- A sitewide install of CentOS, an active vendor contract, exclusive use, or that CentOS is still in place today.
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How to check a site for CentOS
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest CentOS signals.
- 2. PluginView reads only public responses (response headers) and scores them against the CentOS signature set (2 rules).
- 3. Review the confidence score and text explanation for CentOS on the results page.
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FAQ: detecting CentOS
- Can PluginView detect CentOS without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for CentOS — typically response headers. It does not bypass authentication or paywalls.
- What category is CentOS?
- CentOS is classified under Operating systems in the PluginView directory.
- How many fingerprint rules cover CentOS?
- 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 CentOS?
- Illustrative public indicators for CentOS include server: CentOS; x-powered-by: CentOS. A live scan may match additional proprietary rules beyond these examples.
