When register a new domain, you should avoid expired domains if possible. Google bans expired domains automatically, which will leave your website out of Google’s index for at least 6 months.
But not all expired domains are banned by Google. If a domain has never been included by Google, it won’t be banned either after it is expired.
How to tell if an expired domain is banned or never indexed?
Never-indexed domains: it is fine to use an expired domain which has never been included by Google. Search the domain name on Google, you will see the following result: "Sorry, no information is available for the URL testdomain.com."
* If the URL is valid, try visiting that web page by clicking on the following link: testdomain.com
*Find web pages from the site testdomain.com
* Find web pages that contain the term “testdomain.com”
Note: A domain which is never registered has the same result.
Banned domains: if a domain was banned, you will see the following result when searching the domain name:
Sorry, no information is available for the URL domain name
* Find web pages from the site health-care-online.net
* Find web pages that contain the term “domain name”