[dns-operations] google.com's expire time

彭勇华 pengyonghua at dnsbed.com
Wed Aug 10 09:10:37 UTC 2016

google.com.             60      IN      SOA     ns3.google.com.
dns-admin.google.com. 129839389 900 900 1800 60

I was thinking domain of google.com, whose expire time is setup to 1800, is
it safe enough for this short value?
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