After a nameserver change or a specific record...A record, MX or similar is made on the domain, with the aim of using the domain (and/or e-mail) on another server, another IP address,
it is necessary to wait for the new records to propagate in all places.
Propagation of DNS records can take from a few minutes to 48 hours.
DNS records do not propagate everywhere at the same time, it also depends on the internet provider how long they cache the data.
It is possible to speed up propagation by reducing the TTL value within cPanel --> Zone Editor.
TTL ("time-to-live") is the part of a DNS record that tells how much that record is worth.
Example 14400 means 4 hours.
Reducing the TTL is recommended to be done at least 2-3 days before changing the DNS record.
For faster propagation, it is best to set the TTL value to 144.
After the new record propagates in all places, it is best to return the TTL value to the default, i.e. 14400.
With such changes, there is a possibility that your local internet browser or internet provider will still display "old" information.
In this case, you can try to refresh the page in your browser by clicking CTRL + F5 or check the page via an online proxy service.
