After you configure DNS, you can use the show ip domain-lookup command to view information about the name servers.
show ip domain-lookup
host1#show ip domain-lookup Bind to client: (boston)default Using following Domain Name Servers: 10.2.0.3 11.1.1.1 10.1.1.1 1:2:3:4:5:6:7:8:9:0:a:b:c:d:e:f Using following Local Domain Names : urlofinterest.com concord