After careful considerations the forum’s domain has been been changed to tzm.one 
This change is both for technical and practical reasons. Technical mostly in the sense that we are now fully IPv6 compatible and use DNSSEC. With DNSSEC we can utilize DANE, TLSA, SSHFP, MTA-STS, and many more modern standards that improve security, privacy and better integration with mail providers which will lower the chances of getting tagged as spam.
The practical reasons are simply that we now have a shorter domain, which will be easier to remember, type and put on promotion material such as small thumbnails. Especially that last bit will be very useful for the upcoming Zeit-Talks series which will use the forum as well.
If you notice any issues, then please contact us.