Some Google search results of Stack Exchange sites show URLs with port 8080.
It looks like Google has indexed various Stack Exchange sites running on port 8080. Since URL canonicalization is a good practice according to this Google Support article, this looks like a SEO bug that can be fixed from Stack Exchange's end.
My questions are:
- Is it intentional that there is a mixture of the default HTTP port and port 8080 in Google search results of Stack Exchange?
- Why is port 8080 open to the public in the first place?
- Why doesn't stackoverflow.com:8080 (the only exception I caught) load?
- Should Stack Exchange URLs be canonicalized? (i.e. Should Stack Exchange sites on port 8080 removed from search results?)
Click on each example to be taken to the live search result.