Detect WebSocket
WebSocket is a communication protocol that provides full-duplex communication channels over a single, long-lived connection, enabling interactive communication between web browsers and servers.
Detection looks at response headers, dom selectors, html markup across 5 fingerprint rules among the site's public responses.
01
Websites using WebSocket
Loading website list…
02
Signal classes
PluginView evaluates public page signals in these classes when identifying WebSocket. Individual fingerprint rule bodies are proprietary and are not published.
- Response headers
- DOM selectors
- HTML markup
03
Example public indicators for WebSocket
Illustrative indicators derived from public catalog metadata for WebSocket. A live scan may match additional proprietary rules beyond these examples.
- upgrade: websocket
- link
- <linkahref=wss?://
04
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known WebSocket signature (5 rules) at the time of the scan.
- Does not establish
- A sitewide install of WebSocket, an active vendor contract, exclusive use, or that WebSocket is still in place today.
05
How to check a site for WebSocket
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest WebSocket signals.
- 2. PluginView reads only public responses (response headers, dom selectors, html markup) and scores them against the WebSocket signature set (5 rules).
- 3. Review the confidence score and text explanation for WebSocket on the results page.
06
FAQ: detecting WebSocket
- Can PluginView detect WebSocket without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for WebSocket — typically response headers, dom selectors, html markup. It does not bypass authentication or paywalls.
- What category is WebSocket?
- WebSocket is classified under Miscellaneous in the PluginView directory.
- How many fingerprint rules cover WebSocket?
- This reference currently tracks 5 fingerprint rules across response headers, dom selectors, html markup. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses WebSocket?
- Illustrative public indicators for WebSocket include upgrade: websocket; link; <linkahref=wss?://. A live scan may match additional proprietary rules beyond these examples.
