Dig is a DNS lookup utility provided by ISC. This page is a simple web interface for dig.
$ dig a.root-servers.net
; <<>> DiG 9.16.48-Ubuntu <<>> a.root-servers.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33216
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;a.root-servers.net. IN A
;; ANSWER SECTION:
a.root-servers.net. 85452 IN A 198.41.0.4
;; Query time: 28 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Fri Apr 26 09:01:21 UTC 2024
;; MSG SIZE rcvd: 63