Whilst not officially acknowledge by Google, SEO experts and webmasters agree the ‘Sandbox’ is a very real thing. Newly registered domains are often placed in Google’s sandbox for a period of 3-6 months sometimes longer, during this period your Google rankings will be lower until Google trusts your site.
Unfortunately there's no way to bypass Google’s sandbox, it exists to filter out fake sites and to combat those who try to manipulate the search results in their favor by using various black hat SEO techniques.

Seems that I hear more and more about that ‘Sadnbox’