whatsmydns.net - DNS Propagation Checker

NS records for google.com:

Record Type Value TTL
google.com NS ns4.google.com. 21760
google.com NS ns3.google.com. 21760
google.com NS ns1.google.com. 21760
google.com NS ns2.google.com. 21760
id 54778, opcode QUERY, rcode NOERROR, flags QR RD RA
;QUESTION
google.com. IN NS
;ANSWER
google.com. 21760 IN NS ns4.google.com.
google.com. 21760 IN NS ns3.google.com.
google.com. 21760 IN NS ns1.google.com.
google.com. 21760 IN NS ns2.google.com.
;AUTHORITY
;ADDITIONAL
ns4.google.com. 32215 IN A 216.239.38.10
ns3.google.com. 27838 IN A 216.239.36.10
ns1.google.com. 28142 IN A 216.239.32.10
ns2.google.com. 31153 IN A 216.239.34.10
ns4.google.com. 31153 IN AAAA 2001:4860:4802:38::a
ns3.google.com. 17858 IN AAAA 2001:4860:4802:36::a
ns1.google.com. 9276 IN AAAA 2001:4860:4802:32::a
ns2.google.com. 16268 IN AAAA 2001:4860:4802:34::a

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NS Record Lookup

whatsmydns.net NS Record Lookup tool lets you query DNS servers and get instant results.

Name Server or NS lookups are used to determine the NS records associated with a domain.

Looking for easier to understand results? Use the Global DNS Checker tool.

DNS NS Record

NS records, known as Nameserver records are used to store the nameservers for a domain. The nameservers identify which DNS servers are responsible for managing DNS records for the domain.

Example NS record

An example NS record may look like the following:

Record Type Value TTL
example.com NS ns1.nameserver.com 3600

example.com represents the domain of the record.

NS is the record type.

ns1.nameserver.com is the value of the record. This is the address of the nameserver for this domain. NS records cannot point to CNAME records.

3600 is the TTL (time to live) of the record in seconds, this example represents 1 hour. This means that when a record has had updates made to it, then it will take 1 hour to update.

Primary & secondary NS records

Domains are typically configured with multiple NS records, this is important because if the nameservers for a domain are not configured correctly then this will mean that the website, email, or other services for the domain will not work.

To configure primary and secondary or backup nameservers multiple NS records should be created for the domain.

Record Type Value TTL
example.com NS ns1.nameserver.com 3600
example.com NS ns2.nameserver.com 3600