How Long Has That Domain Name of Yours Been Around?
The length of time that you have owned a domain name has a some influence on how Google views your website. This is because Google wants to avoid spammers as much as possible. Spammers will frequently buy up discarded domain names and attach them to a spam-oriented website. Since these sites muck up Google’s search results, Google is a bit leary with any site that has a fresh domain name registration as it may suspect spam. Also, new websites with new domain names are not yet well established. Google does not want to risk a high ranking for a website that just might be a short term site. Quality listings are what Google wants. Websites that have been online for a long time with a long standing domain name are viewed as higher in quality to Google.
If you have your domain name registered for 10 years out as opposed to year-to-year, then Google assumes you have more expectations of being around for the long haul. Renew your domain name for large chunks at a time if possible, as it gives Google more warm vibes about your site.