gmail.com SOA records

SOA Start of authority
1m
Zone apex
Start of authority
Email
Serial
875630231
Refresh
15m
Retry
15m
Expire
30m
Negative cache TTL
1m

Question and response

Question

dig gmail.com. SOA

Answer

gmail.com. 60 SOA ns1.google.com. dns-admin.google.com. 875630231 900 900 1800 60

Authority

gmail.com. 345600 NS ns1.google.com. gmail.com. 345600 NS ns2.google.com. gmail.com. 345600 NS ns3.google.com. gmail.com. 345600 NS ns4.google.com.

Additional

ns1.google.com. 345600 A 216.239.32.10 ns1.google.com. 345600 AAAA 2001:4860:4802:32:0:0:0:a ns2.google.com. 345600 A 216.239.34.10 ns2.google.com. 345600 AAAA 2001:4860:4802:34:0:0:0:a ns3.google.com. 345600 A 216.239.36.10 ns3.google.com. 345600 AAAA 2001:4860:4802:36:0:0:0:a ns4.google.com. 345600 A 216.239.38.10 ns4.google.com. 345600 AAAA 2001:4860:4802:38:0:0:0:a . 0 OPT ; payload 512, xrcode 0, version 0, flags 0