My domain can not be resolved by 1.1.1.1

My domains can not be resolved by 1.1.1.1, but 8.8.8.8 is OK.
Here are the domains:
xxx.tpddns.cn & xxx.tplinkdns.com


Example:

nslookup extra-six.tpddns.cn -type=A 1.1.1.1
Server:         1.1.1.1
Address:        1.1.1.1#53

** server can't find extra-six.tpddns.cn: SERVFAIL

But 8.8.8.8 is OK.

nslookup extra-six.tpddns.cn -type=A 8.8.8.8
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	extra-six.tpddns.cn
Address: 113.87.14.230

Hi, it seems like tpddns.cn returns NOTIMPL for any other type than A record so it’s impossible to get child NS set or check for DNSKEY records. See https://dnsviz.net/d/extra-six.tpddns.cn/dnssec/

Can you try switching to 1.0.0.2?

1 Like

Thanks. 1.0.0.2 is OK.
What is the difference between 1.0.0.2 & 1.1.1.1, so that 1.0.0.2 can resolve the domain but the other cannot?

What the types of record does tpddns.cn & tplinkdns.com need to implement to ensure that 1.1.1.1 can resolve their domains?