Cname -support-

[gamers_indo1223]

why when i enter glitch.edgeapp.net on cname record

but after i add this the cname destination change to glitch.edgeapp.net.
with a dot on the last word that make my cname is not working
hellp

[Admin]

Short answer: your CNAME record does work. The dot doesn’t matter. But DNS propagation does, so maybe you just need to wait for a day or two for the changes to be visible, depending on how you’re verifying them.

Longer answer:

For the majority of DNS systems a CNAME target with and without a period at the end is the same, and it varies by platform whether they prefer to display it with or without a period at the end.

This is a bit different on the low level DNS configuration. At that level, the period at the end is really important, and you should really have. If you don’t have a period at the end, it means the target record is a subdomain of the same zone, not a full hostname.

So, say you have the domain example.com and want to point a subdomain test to the domain glitch.edgeapp.net. If you enter this in the base DNS config without period at the end, it’s considered to be a subdomain, so the actual CNAME target will be glitch.edgeapp.net.example.com. If you don’t want it to be a relative domain, you must add the period.