Question and response
Question
dig _netblocks3.next-data.net. TXT
Answer
_netblocks3.next-data.net. 86400 TXT "v=spf1 ip4:5.39.8.131 ip4:51.254.48.135 -all"
Authority
next-data.net. 86400 NS dns1.next-data.net.
next-data.net. 86400 NS dns2.next-data.net.
Additional
dns1.next-data.net. 86400 A 185.124.45.250
dns2.next-data.net. 86400 A 51.255.211.27
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0