What is googel sandbox? My site topped for a year on google and noticeably after penguin update, its no where on google. Is it supposed to be penalized? How to check?
Spend a couple of hours doing a proper diagnosis of your site. Here is a tutorial http://www.matthewwoodward.co.uk/tu...acklink-profile-for-current-future-penalties/ That will arm you with the knowledge of exactly what the problem was, and what is required to recover from the drop.
The Google sandbox is believed to be a holding place for new websites until they prove that they are worth ranking highly by Google. Newer websites may therefore appear to be poorly ranked whenin fact they are in the sandbox. The existence of the sandbox has never been confirmed by Google but many speculate it exists. It is believed that the sandbox was introduced to counter spam related sites from rising too quickly in the rankings.