Zone apex
Start of authority
Email
Serial
2397800777
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m
Question and response
Question
dig columbus.co. SOA
Answer
columbus.co. 1800 SOA blue.foundationdns.com. dns.cloudflare.com. 2397800777 10000 2400 604800 1800
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0