I set up a CNAME record 24 hours ago and it still is not propagating. It seems to be done correctly in my CF DNS settings. All of the other CNAMES are working as expected. It is supposed to be client-portal.syncresis.com aliasing to custom-domains.clinked.com. clinked.com is supposed to be serving a white-label version of their web application. The link works but it fails to display. Their response is that the CNAME record is not there, which external DNS checkers confirms is the case: https://dnschecker.org/#CNAME/client-portal.syncresis.com and https://www.whatsmydns.net/#CNAME/client-portal.syncresis.com both show no record existing.
What could be causing this?