Can PluginView detect ef.js without logging in?

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

What category is ef.js?

ef.js is classified under JavaScript frameworks in the PluginView directory.

Does PluginView publish ef.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 ef.js

JavaScript frameworks

PluginView detects ef.js, a JavaScript frameworks, by evaluating publicly reachable page signals. Fingerprint rules remain proprietary and are not published.

Websites using ef.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 ef.js signature at the time of the scan.
Does not establish: A sitewide install of ef.js, an active vendor contract, exclusive use, or that ef.js is still in place today.

How to check a site for ef.js

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

FAQ: detecting ef.js

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