Dig is a DNS lookup utility provided by ISC. This page is a simple web interface for dig.
$ dig cert.microsoft.com
; <<>> DiG 9.16.48-Ubuntu <<>> cert.microsoft.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32460
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;cert.microsoft.com. IN A
;; ANSWER SECTION:
cert.microsoft.com. 3600 IN CNAME reroute.microsoft.com.
reroute.microsoft.com. 1921 IN CNAME reroute443.trafficmanager.net.
reroute443.trafficmanager.net. 59 IN A 20.70.246.20
;; Query time: 4 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Sat Apr 20 11:21:04 UTC 2024
;; MSG SIZE rcvd: 128