It is day # 4 in the Google Webmaster Help Reconsideration Request series of tips this week.

Sometimes a page may look clean to you but hackers often inject content that only search engines can easily see. ‘Fetch as Googlebot’ shows how your page looks to Googlebot (our website crawler) so use it to identify and clean up hacked content. Learn more about Fetch as Google: http://goo.gl/C15CyK.

Our weeklong #GoogleRecon series is almost over. Let us know if you have any questions in the comments below or by using the hashtag #GoogleRecon .

Even before “fetch as Googlebot” many of us used to do site: searches using the most common keywords that would pop up on a hacked site.  It is definitely a good idea to keep an eye on this, and hopefully spot it before a warning about being a hacked site pops up in the Google search results (such as if it is hacked to serve malicious downloads) or within your Google Webmaster Tools account.