城市(city): unknown
省份(region): unknown
国家(country): China
运营商(isp): China Unicom
主机名(hostname): unknown
机构(organization): CHINA UNICOM Industrial Internet Backbone
使用类型(Usage Type): unknown
b
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 210.53.231.174
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 52163
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;210.53.231.174. IN A
;; AUTHORITY SECTION:
. 3600 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2019050400 1800 900 604800 86400
;; Query time: 2 msec
;; SERVER: 67.207.67.3#53(67.207.67.3)
;; WHEN: Sat May 04 19:13:29 +08 2019
;; MSG SIZE rcvd: 118
Host 174.231.53.210.in-addr.arpa. not found: 3(NXDOMAIN)
Server: 67.207.67.3
Address: 67.207.67.3#53
** server can't find 174.231.53.210.in-addr.arpa: NXDOMAIN