optotrace.net.		30 IN SOA ns1.domainnamedns.com. support.namens.net. (
				1727719982 ; serial
				3600       ; refresh (1 hour)
				1800       ; retry (30 minutes)
				1209600    ; expire (2 weeks)
				180        ; minimum (3 minutes)
				)
optotrace.net.		30 IN CNAME boteyufu.cdnfree.org.
optotrace.net.		30 IN CNAME boteyufu.cdnfree.org.

boteyufu.cdnfree.org.	10 IN A	51.79.30.32
optotrace.net.		30 IN CNAME boteyufu.cdnfree.org.

Name servers:
optotrace.net.		30 IN NS ns2.domainnamedns.com.
optotrace.net.		30 IN NS ns3.domainnamedns.com.
optotrace.net.		30 IN NS ns4.domainnamedns.com.
optotrace.net.		30 IN NS ns1.domainnamedns.com.