4ul.ir.			30 IN SOA f.ns.arvancdn.ir. hostmaster.arvancloud.ir. (
				1690042561 ; serial
				86400      ; refresh (1 day)
				7200       ; retry (2 hours)
				604800     ; expire (1 week)
				7200       ; minimum (2 hours)
				)

4ul.ir.			30 IN A	46.4.237.54

Name servers:
4ul.ir.			30 IN NS f.ns.arvancdn.ir.
4ul.ir.			30 IN NS w.ns.arvancdn.ir.