Mastering Kali Linux for Advanced Penetration Testing(Second Edition)
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Google caches

If something has been deleted from the internet, it does not mean it has been deleted from Google. Every page that is visited by Google is backed up as a snapshot in Google cache servers. Typically, it is intended to see whether Google can serve you the best available page based on your search query. This can be utilized to gather information about our target: for example, a hacked database's details were posted on sampledatadumpwebsite.com, and that website or the link has been taken off the internet. If the page has been accessed by Google, this information provides attackers with a lot of information, such as usernames, password hashes, what type of backend is being utilized, and other relevant technological and policy information. The following links are the first level of harvesting past data:

The following is the screenshot of cyberhia.com in Google's web cache on February 6, 2017:

We will be discussing more about the hidden face of Google in an upcoming section, Google Hacking Database.