While checking a Google patent filing, I noticed some interesting text telling Google would start examining the length of a domain’s registration in determining search engine rankings. The idea, I guess, is that if a domain is registered for only one year, the owner of the domain is considered as not committed to long-term maintenance of the content on the domain.

Conversely, if someone registers a domain for five years, it appears more likely that this person has long-term plans or commitment  for the domain.

So when you buy a new domain, you better try to register it for at least two years, and preferably 5 years. If you already have a domain, you may enter your registrar’s control panel and renew the domain before it expires.

The domain  prices are between $6-18 depending on the registrar. You should extend your domain for 5 years at least. It is worth spending your money.