Completely hide all content on part of my site

I have a question that I thought would be straightforward, but apparently it’s not.

What is a way that I can hide all content on just part of a site. I don’t want titles or excerpts in any category lists, feeds, or searches.

I’ve spent a while researching this and trying the members plugins and they all display the titles and excerpts of excluded content.

There are a few plugins that hide feed and search results but the category excluders still showed the categories in widgets and the posts in the Latest Post widget.

Any guidance would be most appreciated.