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Retrieving DNS records for www.stackoverflow.com...

DNS servers
cf-dns02.stackoverflow.com [173.245.59.4]
cf-dns01.stackoverflow.com [173.245.58.53]

Answer records
stackoverflow.comSOA
server:cf-dns01.stackoverflow.com
email:[email protected]
serial:2017000195
refresh:10000
retry:2400
expire:604800
minimum ttl:3600
86400s
stackoverflow.comMX
preference:10
exchange:aspmx2.googlemail.com
300s
stackoverflow.comMX
preference:5
exchange:alt2.aspmx.l.google.com
300s
stackoverflow.comMX
preference:5
exchange:alt1.aspmx.l.google.com
300s
stackoverflow.comMX
preference:1
exchange:aspmx.l.google.com
300s
stackoverflow.comMX
preference:10
exchange:aspmx3.googlemail.com
300s
stackoverflow.comTXTv=spf1 a mx ip4:198.252.206.0/24 ip4:69.59.197.0/26 include:cmail1.com include:_spf.google.com ~all300s
stackoverflow.comNS cf-dns02.stackoverflow.com86400s
stackoverflow.comNS cf-dns01.stackoverflow.com86400s
stackoverflow.comA198.252.206.140300s

Authority records

Additional records
cf-dns02.stackoverflow.comA173.245.59.4900s
cf-dns02.stackoverflow.com28[16 bytes]900s
cf-dns01.stackoverflow.com28[16 bytes]900s
cf-dns01.stackoverflow.comA173.245.58.53900s