shell:$ nslookup -timeout=2 -retry=1 'api.rctiplus.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
api.rctiplus.com	canonical name = api.rctiplus.com.w.kunlunsl.com.
Name:	api.rctiplus.com.w.kunlunsl.com
Address: 163.181.60.225
Name:	api.rctiplus.com.w.kunlunsl.com
Address: 163.181.60.224
Name:	api.rctiplus.com.w.kunlunsl.com
Address: 163.181.60.226
Name:	api.rctiplus.com.w.kunlunsl.com
Address: 163.181.60.221
Name:	api.rctiplus.com.w.kunlunsl.com
Address: 163.181.60.222
Name:	api.rctiplus.com.w.kunlunsl.com
Address: 163.181.60.219
Name:	api.rctiplus.com.w.kunlunsl.com
Address: 163.181.60.220
Name:	api.rctiplus.com.w.kunlunsl.com
Address: 163.181.60.223