Shodan and internetDB have different results (not 100% sure why but this is also why I said earlier today.. this game is like art science!)
using a diverse set of datasources is a good idea, I say in incidents to check things 3 times! to be sure! we also have to recognise that we may need to have a mix of active and passive scanning!
(can you guess that module I'm going to add later maybe ;) pew pew )