How to remove a subdomain from the search results?

Question

Yandex

How can I remove a domain name from Yandex search results and prevent it from appearing on Google?
robots.txt on the subdomain has
"User-agent: *
Disallow: / "
Maybe you need to somehow configure robots.txt on the main domain?

Answer 1

Try the variant with inserting a meta tag into the header of the site:
I use this on static sites. Haven't tried it on WordPress yet, but in theory it should work.
Here is a link to Google's explanation: https://support.google.com/webmasters/answer/93710