Why won't Safari load all the way to the end (OS X)?

Question

safari

Safari after some time after the start of work (conditionally several hours) starts not loading some sites (including the same Habr). In a second, a piece of the page is loaded, after which the tab goes into endless loading. After rebooting the laptop, everything returns to normal, but only for a while. At the same time, the same YouTube, Apple.com, Coursera are always loaded normally. There is the latest version of Catalin'y, cleared the cache, history, even reset the laptop to factory settings. I would not want to switch to Chrome, judging by the complaints, autonomy decreases with it, but this is already starting to specifically piss me off. Googling, apart from primitive advice, did not give anything. Can, who already faced?
PS With such a page freeze, even if you close the tab and then try to go to the Privacy settings in Safari, the browser immediately freezes to death.

Answer 1

It was necessary to reset Apple Pay in the "Wallet & Apple Pay" settings item. Thank you so much for the tip Michael .