Which subdomains are more correct, and why do we use wildcard?
This is my zone file
$ORIGIN z3lab.info. $TTL 1800 z3lab.info. IN SOA ns1.digitalocean.com. hostmaster.z3lab.info. 1472229537 10800 3600 604800 1800 z3lab.info. 1800 IN NS ns1.digitalocean.com. z3lab.info. 1800 IN NS ns2.digitalocean.com. z3lab.info. 1800 IN NS ns3.digitalocean.com. z3lab.info. 1800 IN A 22.214.171.124 *.static.z3lab.info. 1800 IN CNAME z3lab.info. *.v2.z3lab.info. 1800 IN CNAME z3lab.info. test.z3lab.info. 1800 IN CNAME z3lab.info. cms.z3lab.info. 1800 IN CNAME z3lab.info.
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