Detect Socket.io

JavaScript frameworks

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

01

Websites using Socket.io

16 hostnames in the PluginView corpus for this technology.

HostnameLast seen
stackoverflow.com8/3/2026
osu.edu8/3/2026
pymnts.com8/3/2026
techdirt.com8/3/2026
socket.io8/3/2026
02

What a detection means

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

How to check a site for Socket.io

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

Commonly implies

A confirmed Socket.io match also implies these technologies are present.

05

FAQ: detecting Socket.io

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