Aternos/Exaroton

This tells how to set up a custom domain over at Aternos and Exaorton

On your selected server (that you own or given access with the permissions to the Domains Tab) you wish you add the domain in, go to your registrar's DNS records and add 2 separate NS records that has the following:

Name: Any domain name you want to add (if subdomain or parent)

Target: columbus.aternos.org (First) and galileo.aternos.org (Second)

After click on save on both (making sure you added 2 NS records pointing to these 2 Name Servers correctly) and wait for the DNS to propagate globally (you gotta be patient as it takes time)

Then go to your Domains Tab on the Selected Server, add the domain and click on add, once it is added then you're ready to go, you can simply open your client and put the new IP which would resolve to aternos!

Exaroton

The Nameservers for Exaroton are the same as aternos, you only need to change its domain to exaroton.com

Bedrock Support

After adding the NS records you don't need to do an extra step if you want to add bedrock support on your registrar, if your domain is added to Aternos/Exaroton and it resolves, anyone can join on bedrock as long as Geyser is added to the server, any custom domain added on aternos or exaroton also do work from auto filling the address and its port on bedrock for you if it finds that it exists by simply going to, or linking somewhere add.aternos.org/<domainame> or add.exaroton.com/<domainame>