_netblocks.blackboard.com DNS history

Filter record types
No record changes with these filters Try selecting a different DNS record type.
First observed
SOA +1 -0
+ blackboard.com 900 SOA ns-719.awsdns-25.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
TXT +1 -0
+ _netblocks.blackboard.com 300 TXT "v=spf1 ip4:23.96.16.19 ip4:40.76.211.14 ip4:192.207.19.168 -all"