Dig is a DNS lookup utility provided by ISC. This page is a simple web interface for dig.
$ dig autodiscover-au3.outlook.com
; <<>> DiG 9.16.48-Ubuntu <<>> autodiscover-au3.outlook.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59473
;; flags: qr rd ra; QUERY: 1, ANSWER: 7, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;autodiscover-au3.outlook.com. IN A
;; ANSWER SECTION:
autodiscover-au3.outlook.com. 300 IN CNAME autodiscover.outlook.com.
autodiscover.outlook.com. 2 IN CNAME atod-g2.tm-4.office.com.
atod-g2.tm-4.office.com. 2 IN CNAME autod.ms-acdc-autod.office.com.
autod.ms-acdc-autod.office.com. 9 IN A 40.99.67.232
autod.ms-acdc-autod.office.com. 9 IN A 52.98.51.152
autod.ms-acdc-autod.office.com. 9 IN A 40.100.49.216
autod.ms-acdc-autod.office.com. 9 IN A 40.99.16.200
;; Query time: 40 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Fri Apr 26 21:42:01 UTC 2024
;; MSG SIZE rcvd: 216