I am not sure if devrant is the best place to post this so sorry if it is not.

How far do employers/recruiters go when searching online information about their applicants?

Do they simply check your fb? simple google search your name? advanced queries with multiple search engines? data gathering software like maltego? or really check and link leaked db dumps and pastebins?

If anyone has any knowledge or experience with this I would love to hear.

Thanks in advance