How Are Zones Queried to Resolve a Domain Name?¶
When a domain name resolution request is initiated, a matched subdomain is first queried.
If a zone is created for the subdomain, the system returns the result based on the zone configuration.
If a zone is not created for the subdomain, the system queries the domain name in the zone created for the domain name.
For example, suppose you have created one zone for example.com and added an A record set with the Name field set to www. You have also created another zone for www.example.com without an A record set.
If an end user accesses www.example.com, the domain name www.example.com is first queried. However, no result will be returned because no record sets have been added to the zone.