Yup

Thanks. It was due to me using a wrong port. Its working now.

Sorry for the inconvinience

Yes, also occures without the header. But I think I know the problem now: I tried to use the certificate of my host provider, which seems not to work for federation

Ok, yeah, I’m using a certiciate of my domain provider. Maybe that’s the problem … thanks! I will try to do it with letsencrypt/acme

Or do you know a similar post maybe?

You are right, it could be read that way from the title. But from the content it becomes pretty clear that the section of the universe called the “Open Web” was deserted in this world decades ago and no one is there.

Its meant in the sense: better build communities in the fediverse rather than on Mars. Its a pun on “Colonize Mars”