Detect XRegExp
PluginView detects XRegExp, a JavaScript libraries, by evaluating script sources, javascript globals on publicly reachable pages. Illustrative public indicators associated with XRegExp include xregexp*0*.js, xregexp.min?.js, xregexp.*.js. Full fingerprint rules remain proprietary; this page summarizes the signal classes and example indicators used for identification.
Detection looks at script sources, javascript globals across 4 fingerprint rules among the site's public responses.
Websites using XRegExp
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Signal classes
PluginView evaluates public page signals in these classes when identifying XRegExp. Individual fingerprint rule bodies are proprietary and are not published.
- Script sources
- JavaScript globals
Example public indicators for XRegExp
Illustrative indicators derived from public catalog metadata for XRegExp. A live scan may match additional proprietary rules beyond these examples.
- xregexp*0*.js
- xregexp.min?.js
- xregexp.*.js
- XRegExp.version: .
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known XRegExp signature (4 rules) at the time of the scan.
- Does not establish
- A sitewide install of XRegExp, an active vendor contract, exclusive use, or that XRegExp is still in place today.
How to check a site for XRegExp
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest XRegExp signals.
- 2. PluginView reads only public responses (script sources, javascript globals) and scores them against the XRegExp signature set (4 rules).
- 3. Review the confidence score and text explanation for XRegExp on the results page.
FAQ: detecting XRegExp
- Can PluginView detect XRegExp without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for XRegExp — typically script sources, javascript globals. It does not bypass authentication or paywalls.
- What category is XRegExp?
- XRegExp is classified under JavaScript libraries in the PluginView directory.
- How many fingerprint rules cover XRegExp?
- This reference currently tracks 4 fingerprint rules across script sources, javascript globals. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses XRegExp?
- Illustrative public indicators for XRegExp include xregexp*0*.js; xregexp.min?.js; xregexp.*.js. A live scan may match additional proprietary rules beyond these examples.
