How to remove subdomains like ftp.site.ru, pop.site.ru and mail.site.ru from search results?

Question

Search Engine Optimization

Hello kid. I checked all the pages of the site and found in the results a subdomain of my site of this kind mail.site.ru, I understand that this domain is used by mail (if I understand correctly), but what did he forget in the search results? How many times I worked with VPS this didn’t happen before (didn’t notice) now I managed to notice))

Answer 1

Delete these records in dns