Hello, I have a problem for which I saw google indexing some uknown pages which are located on subdomain pbek.silkfactory.shop. This subdomain was not created by me. Google is indexing around 4000 pages on this subdomain. Here is an example link https://pbek.silkfactory.shop/2697-where-can-i-get-silagra-100mg-without-prescription.axs . I have contacted my hosting and they can’t find where this subdomain was created so that is why I am contacting you. Could you please help me on this issue so I can delete this subdomain and all of its content?
What steps have you taken to resolve the issue?
Contacted hosting
What feature, service or problem is this related to?
One or more of your DNS record(s) contains an asterisk (“*”) in it’s name, which makes it a wildcard.
If you have no DNS record that explicitly have been named “pbek”, the origin to the issue you see, would be with the final destination of the wildcard record.
If you want to avoid all sub-domains, that the “*” is matching, to point in the direction that it currently does, then yes.
A wildcard for “*.spaghetti.example.com” (named “*.spaghetti” in the Cloudflare Dashboard) will match both “a.spaghetti.example.com”, “alfa.bravo.charlie.spaghetti.example.com”, and any other sub-domains of “spaghetti.example.com”, where there aren’t any other DNS records, that have broken out of the wildcard.
A DNS record on “charlie.spaghetti.example.com” would for example break out of the wildcard for “charlie.spaghetti.example.com”, and anything below “charlie.spaghetti.example.com”, such as e.g. the before mentioned “alfa.bravo.charlie.spaghetti.example.com”.
So how much that will eventually break, depends on what (sub-)domains you’re using, and whether or not that the given (sub-)domain is depending on the wildcard record right now.
It can literally go in both directions, - it might not break break anything at all, but it could also break everything at once.