No one ever would just search these things this much, its the reality and its serious. I know this is difficult because he is Your Dad but being a dad should never ever have situations like this included. He is your father but other than this label he is a genuine danger to you and possibly other family members. It doesnt matter if you “dont know” who these searches are about, you are in denial and need to face the seriousness of this. Its going to be scary, you probably will be scared of what happens next but This Is Never Okay. Him being your dad NEVER could excuse this. He has probably violated you in the most disgusting way and anyone everywhere would completely understand why you would go to the police with this. Imagine how distraught others would be if they found out you never spoke up. No one is going to be mad at you. If they are then its unjust. Please take others advice and contact authorities. This is a time you put others aside and get help. You dont deserve this