Dig is a DNS lookup utility provided by ISC. This page is a simple web interface for dig.
$ dig rst.im
; <<>> DiG 9.11.3-1ubuntu1.13-Ubuntu <<>> rst.im
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40411
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;rst.im. IN A
;; ANSWER SECTION:
rst.im. 299 IN A 104.31.71.199
rst.im. 299 IN A 172.67.172.232
rst.im. 299 IN A 104.31.70.199
;; Query time: 232 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Fri Sep 25 11:37:20 UTC 2020
;; MSG SIZE rcvd: 83