Dig is a DNS lookup utility provided by ISC. This page is a simple web interface for dig.
$ dig exmail.chengmail.cn
; <<>> DiG 9.16.48-Ubuntu <<>> exmail.chengmail.cn
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12368
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;exmail.chengmail.cn. IN A
;; ANSWER SECTION:
exmail.chengmail.cn. 300 IN A 123.1.189.252
exmail.chengmail.cn. 300 IN A 49.51.248.67
exmail.chengmail.cn. 300 IN A 113.10.158.189
;; Query time: 508 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Sun Apr 28 12:29:01 UTC 2024
;; MSG SIZE rcvd: 96