Detect RackCache

Establishes

One or more public signals on the scanned page matched a known RackCache signature at the time of the scan.

Does not establish

A sitewide install of RackCache, an active vendor contract, exclusive use, or that RackCache 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 RackCache signals.
2. 2. PluginView reads only public responses and scores them against proprietary RackCache fingerprints. Rule bodies and identifiers are not published.
3. 3. Review the confidence score and text explanation for RackCache on the results page.

A confirmed RackCache match also implies these technologies are present.

Ruby

Can PluginView detect RackCache without logging in?

Yes. PluginView only reads publicly accessible responses when checking for RackCache. It does not bypass authentication or paywalls.

What category is RackCache?

RackCache is classified under Caching in the PluginView directory.

Does PluginView publish RackCache fingerprint rules?

No. Detection uses proprietary fingerprint rules that are not published. Scan results explain matches in plain language without disclosing rule bodies or identifiers.