Detect Cowboy

PluginView evaluates public page signals in these classes when identifying Cowboy. Individual fingerprint rule bodies are proprietary and are not published.

• Response headers

Illustrative indicators derived from public catalog metadata for Cowboy. A live scan may match additional proprietary rules beyond these examples.

• server: Cowboy

Establishes

One or more public signals on the scanned page matched a known Cowboy signature (1 rules) at the time of the scan.

Does not establish

A sitewide install of Cowboy, an active vendor contract, exclusive use, or that Cowboy is still in place today.

1. 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Cowboy signals.
2. 2. PluginView reads only public responses (response headers) and scores them against the Cowboy signature set (1 rules).
3. 3. Review the confidence score and text explanation for Cowboy on the results page.

A confirmed Cowboy match also implies these technologies are present.

Erlang

Can PluginView detect Cowboy without logging in?

Yes. PluginView only reads publicly accessible responses when checking for Cowboy — typically response headers. It does not bypass authentication or paywalls.

What category is Cowboy?

Cowboy is classified under Web servers in the PluginView directory.

How many fingerprint rules cover Cowboy?

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 Cowboy?

Illustrative public indicators for Cowboy include server: Cowboy. A live scan may match additional proprietary rules beyond these examples.