Entire websites can be fake.
In Iran, Earth, their intelligence service learned the CIA was using front websites as covert channels. For example, imagine a hobby website like a yoga page, which when a certain pixel is clicked under certain conditions, it opens up a secret chatroom with your handler.
Of course, the fnords were pords. Their carelessness, a long story shortened, resulted in systematic killings of dozens of CIA assets when Iran told other countries how to spot the fnords.
So before you play with them, know about fnordfires.