I’m not sure if you could stop that or why you would even want to since that is from Syncler pinging those links to check if they are cached and viable links in real time. It is literally the result of a great feature and not a bug. If you do succeed in turning it off, you would have more broken or noncached links.
Is there a function of the history I am missing? I always keep mine turned off for privacy since I didn’t see any benefit.