How does Google know a page is bogus?
We use several techniques to determine whether a page is genuine, including the use of a blacklist containing pages that have been identified as suspicious and/or misleading based on automated detection or user reports. Our software also examines pages’ content and structure in order to catch potentially misleading pages. Google Safe Browsing can’t offer perfect protection, so you should always be on the lookout for indications that a site isn’t what it appears to be. But Google Safe Browsing can help identify and protect you against many of the sites designed to trick users.
