Detect CheerPJ
CheerpJ is a WebAssembly-based Java Virtual Machine and OpenJDK distribution designed to run Java applications in modern browsers.
Detection looks at javascript globals, inline scripts across 4 fingerprint rules among the site's public responses.
01
Websites using CheerPJ
Loading website list…
02
Signal classes
PluginView evaluates public page signals in these classes when identifying CheerPJ. Individual fingerprint rule bodies are proprietary and are not published.
- JavaScript globals
- Inline scripts
03
Example public indicators for CheerPJ
Illustrative indicators derived from public catalog metadata for CheerPJ. A live scan may match additional proprietary rules beyond these examples.
- CheerpJDataFolder
- CheerpJDevFolder
- CheerpJWebFolder
- .cheerpj.com
04
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known CheerPJ signature (4 rules) at the time of the scan.
- Does not establish
- A sitewide install of CheerPJ, an active vendor contract, exclusive use, or that CheerPJ is still in place today.
05
How to check a site for CheerPJ
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest CheerPJ signals.
- 2. PluginView reads only public responses (javascript globals, inline scripts) and scores them against the CheerPJ signature set (4 rules).
- 3. Review the confidence score and text explanation for CheerPJ on the results page.
06
FAQ: detecting CheerPJ
- Can PluginView detect CheerPJ without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for CheerPJ — typically javascript globals, inline scripts. It does not bypass authentication or paywalls.
- What category is CheerPJ?
- CheerPJ is classified under Development in the PluginView directory.
- How many fingerprint rules cover CheerPJ?
- This reference currently tracks 4 fingerprint rules across javascript globals, inline scripts. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses CheerPJ?
- Illustrative public indicators for CheerPJ include CheerpJDataFolder; CheerpJDevFolder; CheerpJWebFolder. A live scan may match additional proprietary rules beyond these examples.
