City: Hangzhou
Region: Zhejiang
Country: China
Internet Service Provider: unknown
Hostname: unknown
Organization: unknown
Usage Type: unknown
b; <<>> DiG 9.10.3-P4-Ubuntu <<>> 58.100.4.181
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 49432
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;58.100.4.181. IN A
;; AUTHORITY SECTION:
. 3600 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2019090600 1800 900 604800 86400
;; Query time: 2 msec
;; SERVER: 67.207.67.2#53(67.207.67.2)
;; WHEN: Sat Sep 07 00:51:59 CST 2019
;; MSG SIZE rcvd: 116Host 181.4.100.58.in-addr.arpa. not found: 3(NXDOMAIN)Server: 67.207.67.2
Address: 67.207.67.2#53
** server can't find 181.4.100.58.in-addr.arpa: NXDOMAIN