City: unknown
Region: unknown
Country: United States
Internet Service Provider: unknown
Hostname: unknown
Organization: unknown
Usage Type: unknown
b; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.8.63
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 50897
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;104.21.8.63. IN A
;; AUTHORITY SECTION:
. 598 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400
;; Query time: 84 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 03:00:26 CST 2022
;; MSG SIZE rcvd: 104Host 63.8.21.104.in-addr.arpa. not found: 3(NXDOMAIN)Server: 183.60.83.19
Address: 183.60.83.19#53
** server can't find 63.8.21.104.in-addr.arpa: NXDOMAIN