A simple DNS lookup tool
Domain 4.3.2.1.in-addr.arpa
Type A
Server Quad9
Duration 4 ms
Results
;; Answer received from 9.9.9.9 (126 bytes)
;;
;; Security Level : UNCHECKED
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40011
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION (1  record)
;; 4.3.2.1.in-addr.arpa.	IN	A

;; AUTHORITY SECTION (1  record)
1.in-addr.arpa.	3457	IN	SOA	ns.apnic.net. read-txt-record-of-zone-first-dns-admin.apnic.net. 21935 7200 1800 604800 3600
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