Domain name blacklisting is a process whereby search engines refuse to rank domains – usually due to previous misbehaviour or attempted manipulation of Google or other search engines. This may occur because a previous owner of the domain has been mischievous.
There is a very easy way to check whether your domain (or even one you are contemplating purchasing) has been blacklisted and this is to visit a domain health tool, such as Blacklist Alert.
If you are considering purchasing a domain that has been previously owned, check its health before you buy.
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