Foot-printing is art of combination of Technical & Social Engineering information gathering.
- There are following methods & resources available to gather the foot-printing
- Foot-printing Through Search Engines(Google, Bing, MSN..etc)
- Google dork using Google Database( https://www.exploit-db.com/google-hacking-database )
- Found ftp link for target website (https://www.searchftps.net/)
- Host location/IP Address/Website source..etc(https://censys.io/ipv4)