Hi
There is no way to check for broken links.

The post https://support.zendesk.com/hc/en-us/community/posts/115007417707-Managing-Links has a few people asking about it.

The only solution Zendesk gives it to use Google Analytics, But this only "gives you every instance of a customer getting the error message." That is too late!

All links need to be checked manually. This is crazy.

It needs a way to check that a link does not refer to either an archived article or an article that is draft.

I have finally found a third party link checker that has helped a bit, but Zendesk does not actually give a 404 if the article is archived, and if it is draft it prompts to sign in rather than an error.

Even an option to export the published help articles as separate files would be helpful (they could then be put thru something that does check).