Third-party evidence for Apollo Moon landings:
https://en.wikipedia.org/wiki/Third-party_evidence_for_Apollo_Moon_landings
Then we have to also have to apply the logic, that if the moon landing was faked, why would they take the chance with faking it a further five times?
The thing is the Russians tracked the moon landings, and if it hadn't happened the Russians would be the first to say so.
Unless the conspiracy theorists move the goalposts and claim "the Russian were in on it as well", which they haven't, the landings must have happened.