...what?
How does anyone at tailscale go from their FAQ comparing the address to a password to "just put it in your DNS record"?!
From https://tailscale.com/tailcat#is-a-tailcat-address-sensitive:
> Is a tailcat address sensitive?
> Yes. The address grants access to a specific connection. Treat it like a password. Don’t log it, commit it to source control, or share it with anyone who shouldn’t have access. Definitely don’t tweet it