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I found, that when using Google PageSpeed Insights, these visits are counted as normal visits.
I attached a screen shot of my visitor log and two pictures with the user agent string of desktop and mobile version(sorry that I have no text for user agents, but I printed the user agent string in the requested website and Google only provided a picture of the response).
In 5b85433: Fixes #4049 Thanks for the report!
Fixes #4049 Thanks for the report!