AAAA Records exists for:

claimed on GCI

This is what I see using this link.

Yes it is, maybe you need to adjust the size.
Please set it as favicon too.

The prefixes for oversight is https://de.wikipedia.org/wiki/Wikipedia:Oversightkandidaturen and for checkuser is https://de.wikipedia.org/wiki/Wikipedia:Checkuser/Wahl

Where do I get this information in the header?

In T163019#3183892, @Urbanecm wrote:

Do you know how can I add the redirect rule to lighttpd config? Or do it need to be set somewhere else?

Might be because Tool Labs uses the infrastructure of Labs.

In T163019#3183577, @Reedy wrote:

In T163019#3183560, @Freddy2001 wrote:

Same for Labs Projects please

Can't they just do them themselves?

Same for Labs Projects please

Setting up a clean wiki sandbox environment on demand in the learning process with some "challanges" and tasks to lern for each subject and students, which eliminates itself after completing the section successfully or setting up the server side software of a chat, where the students can help each other would be very tricky and complex on tool labs (where we tried to set up the project first but had some problems there)