Is it possible to exclude certain sites from a web search so they don't appear in the search results? Some search engines have a feature called safe search, but that doesn't look configurable (at least not in DuckDuckGo or Google).
I'm mainly using DuckDuckGo in Firefox, but I'd consider switching to a different search engine (or even a different browser) if this is possible.
A (hypothetical of course) example: Some might think that answers.microsoft.com is an utterly useless site that never gives the answers you are looking for. How to never show that site ever?