This is related to:
- Duplicate Results in Google Search - Is it a Bug?
- Duplicate google results
- Question appearing twice in Google search results
Often when searching, I get duplicate results:
The problem used to be that canonical URLs were wrong (e.g. the canonical URL for an "answer URL" or "comment URL" pointed to itself), but now it seems that canonical URLs are entirely removed.
Please add them and ensure they are correct. From a user point of view, this is incredibly annoying.