Blocking search engines

[starbiz]

What is the maximum that I can do (within reason) to block all search engines from indexing my forum contents?

I've unchecked "Allow guests to browse the forum" in "Features and Options => General", but what other steps should I take to ensure no forum posts find their way onto Google/Bing/Yandex/etc?

[Antechinus]

That should do it. Nothing else should be necessary.

[vbgamer45]

Also check out a robots.txt file search on a search engine to learn more

[Antechinus]

Yup You can also block troublesome bots directly in .htaccess if some of them are running up a stack of bandwidth. I do that sometimes with (particularly) Chinese bots, or even just bots for advertising sites that I have no connection with.

[movierchives]

You could block the ASN numbers in the firewall or Cloudflare which would block all Microsoft, Google etc IPs