shell:$ nslookup -timeout=2 -retry=1 'sip.jillwilliamsdesign.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
sip.jillwilliamsdesign.com	canonical name = m.facebook.com.
m.facebook.com	canonical name = star-mini.c10r.facebook.com.
Name:	star-mini.c10r.facebook.com
Address: 31.13.80.36
Name:	star-mini.c10r.facebook.com
Address: 2a03:2880:f10e:83:face:b00c:0:25de