Can PluginView detect core-js without logging in?

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

What category is core-js?

core-js is classified under JavaScript libraries in the PluginView directory.

Does PluginView publish core-js 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.

Detect core-js

JavaScript libraries

core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.

Websites using core-js

No websites in the corpus for this technology yet.

What a detection means

Establishes: One or more public signals on the scanned page matched a known core-js signature at the time of the scan.
Does not establish: A sitewide install of core-js, an active vendor contract, exclusive use, or that core-js is still in place today.

How to check a site for core-js

1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest core-js signals.
2. PluginView reads only public responses and scores them against proprietary core-js fingerprints. Rule bodies and identifiers are not published.
3. Review the confidence score and text explanation for core-js on the results page.

FAQ: detecting core-js

Can PluginView detect core-js without logging in?: Yes. PluginView only reads publicly accessible responses when checking for core-js. It does not bypass authentication or paywalls.
What category is core-js?: core-js is classified under JavaScript libraries in the PluginView directory.
Does PluginView publish core-js 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.