shell:$ nslookup -timeout=2 -retry=1 'apc01.safelinks.protection.outlook.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
apc01.safelinks.protection.outlook.com	canonical name = eop.mira.tm.svc.cloud.microsoft.
eop.mira.tm.svc.cloud.microsoft	canonical name = acdcatm.eop.mira.tm.svc.cloud.microsoft.
acdcatm.eop.mira.tm.svc.cloud.microsoft	canonical name = eop-mrc-ww-perf.tm-4.office.com.
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 52.102.103.18
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 52.102.103.47
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 52.102.103.34
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 52.102.103.41
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 52.102.103.35
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 52.102.103.7
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 52.102.103.48
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 52.102.103.0
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 2a01:111:f403:9b96::365:f0be
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 2a01:111:f403:9b99::365:f0be
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 2a01:111:f403:9b94::365:f0be
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 2a01:111:f403:9ba4::365:f0be
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 2a01:111:f403:9b84::365:f0be
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 2a01:111:f403:9ba5::365:f0be
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 2a01:111:f403:9b91::365:f0be
Name:	eop-mrc-ww-perf.tm-4.office.com
Address: 2a01:111:f403:9b97::365:f0be