Which website blocker is the least suspicious?

Question

Google Chrome

I want to block a couple of propaganda sites on my father's laptop. But at the same time, it is important that the blocking looks like just that the site has problems, and not artificially blocked. Uses chrome. What do you advise?
PS By the way, maybe there is some kind of online list of sites with propaganda, anti-Jewish theories, "scientists hide", "Russians are ancient, smarter than everyone on the planet", etc.?

Answer 1

Through host will not work?

Answer 2

I use this option: I add the site to the black list in the antivirus, and when I enter it, the following message is displayed .
(antivirus message can be disabled)

Answer 3

You can redirect to a blocked resource, for example, if the root tracker is blocked, then redirect to it. You can do this directly through hosts:
195.82.146.114 my-father's-favorite-site.rf

Answer 4

you should go to work in Roskomnadzor