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