I use https://www.gkg.net as my registrar. I was not able to add a CNAME for my apex domain (j13r.net), so I followed your instructions to add an A record. I also added a CNAME for my tutorial app (rarwe.j13r.net) and was able to run the app from that domain.
I use https://www.gkg.net as my registrar. I was not able to add a CNAME for my apex domain (j13r.net), so I followed your instructions to add an A record. I also added a CNAME for my tutorial app (rarwe.j13r.net) and was able to run the app from that domain.