Signal is a cross-platform encrypted messaging service.

01

Websites using Signal

1 hostnames in the PluginView corpus for this technology.

HostnameLast seen
naceweb.org8/3/2026
02

What a detection means

Establishes
One or more public signals on the scanned page matched a known Signal signature at the time of the scan.
Does not establish
A sitewide install of Signal, an active vendor contract, exclusive use, or that Signal is still in place today.
03

How to check a site for Signal

  1. 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Signal signals.
  2. 2. PluginView reads only public responses and scores them against proprietary Signal fingerprints. Rule bodies and identifiers are not published.
  3. 3. Review the confidence score and text explanation for Signal on the results page.
04

FAQ: detecting Signal

Can PluginView detect Signal without logging in?
Yes. PluginView only reads publicly accessible responses when checking for Signal. It does not bypass authentication or paywalls.
What category is Signal?
Signal is classified under Marketing automation, Tag managers in the PluginView directory.
Does PluginView publish Signal 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.

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