By discounting all links from before the date it expired.
People used to snatch up expired domains and use the internet archives to put back up the same content and than slowly add links to their sites...
Because of this spam, Google just ignores links to a domain that expired that are from before it went live if the new registrant is a different person I presume but don't know.
People used to snatch up expired domains and use the internet archives to put back up the same content and than slowly add links to their sites...
Because of this spam, Google just ignores links to a domain that expired that are from before it went live if the new registrant is a different person I presume but don't know.