I wish to raise something for discussion as I have failed to see any definitive answer on this, only opinionated ones to date - hopefully +John Mueller
could clarify this one if possible.
If we disavow a root domain like domain:example.com
, does this also disavow all sub domains like sub1.example.com
I know we can safely disavow sub domains individually like domain:sub53.example.com
and this will disavow the entirely of that sub domain but unsure about whether Google have confirmed that disavowing the root domain also disavows all sub domains on it as well (which for the record, I don't think is wise functionality of the tool).
There of course, is also discussion on the web about how some widely used blogging platforms such as blogspot.com
would be immune to this system if indeed disavowing a root domain did disavow all sub domains due to the amount of users and legitimate sites hosted at a free hosted blogging platform on a sub domain. So if that is the case, how do we know which root domains fall into this category?
I've always took the stance that disavowing a root domain would not affect sub domains (like here http://webmasters.stackexchange.com/a/57878/12183
) but with so many discussions (but I fail to see any actual proof or confirmation from Google) around the web, it would be great to have a definitive answer from someone that can explain how sub domains are handled in a disavow file specifically.
I welcome any thoughts :)