I have just purchased the domain
nigerianhotmail.live. Long story behind the why.
I wish to use it with a GitHub pages site and so am setting up the CNAME records for root and www on the domain.
However, when I go to add either I get the following error with the CNAME value as
mattipv4.github.io/nigerianhotmail.live: “Invalid hostname: Use ‘@’ to represent the root domain”
Why would I want to use @ in the custom value of the CNAME??