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WebSockets can be tested with online tests: WebSocket tester.

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Good to know!

In most cases, WebSockets issues occurring on the user-end and the XTM support team is often unable to directly solve such issues. However, sometimes the problems only seem to lie on the users' end, but it eventually turns out that this is an XTM issue and we need to make some changes. Irrespective of root cause, please, do not hesitate to reach out to the XTM support team with all the above-mentioned information gathered up.