Automated query penalty Google penalties can sometimes be caused by using automated query tools which make use of Google’s API, particularly when such queries are made from the same IP address that hosts your website. These tools break Google’s terms of service (as laid out in their Webmaster Guidelines). Google allows certain automated queries into its database using its analytic tools and when accessing through a registered Google API account. Unauthorised types of automated query can cause problems, particularly when used excessively.

Fonte: http://googlepenalty.com/