Is it possible to set up https for a .onion site?

Question

Anonymity

All .onion sites I've seen run on http

UPD: If so, how?

Answer 1

HTTPS can be configured on self-signed certificates that must be accepted on the client side, but it is not clear why, because. this brings more potential disadvantages than advantages (no advantages, unless you want to do client authentication based on a certificate, which is strange for anonymity, since the client must have an artifact in the form of a certificate).
It is also theoretically possible to set up public certificates, several public CAs offer the possibility of obtaining an EV certificate for .onion, but even they warn that this is against common sense, because. publicity is the opposite of the anonymity that .onion sites are designed for.

Answer 2

judging by https://blockchainbdgpzk.onion/ you can

Answer 3

Yes, you can, for example, digicert sells such certificates, but it doesn’t make much sense. traffic to hidden services is already encrypted.