shell:$ nslookup -timeout=2 -retry=1 'algerie.speedtestcustom.com.sp1.ip-dynamic.org'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	algerie.speedtestcustom.com.sp1.ip-dynamic.org
Address: 5.255.106.66