How do you know?
Im not even going to get into it with someone who thinks th emoon landing was faked. I'm sure you believe the worl is flat as well.
Your not serious asking that are you?
Man-made artifacts, especially corner reflector arrays, are detectable at the claimed landing sites. The only way they could have gotten there would have been to have sent some sort of spacecraft to the moon. Given that people could see when we launched our spacecraft, and given that we said where we were going, we must have had some means of getting the spacecraft to hit lunar targets chosen in advance. Did we have technology in 1969 to do that with unmanned spacecraft?
Apollo landed on the moon.