Rick wants to know how domain names and DNS settings work and why sometimes it takes awhile to get his DNS listed. Leo says that DNS, which stands for Domain Name Servers, is basically the phone book of the internet. Not all DNS are alike, though. OpenDNS is pretty good. But chances are his ISP's DNS will be the fastest.
Steve Gibson has an app called DNS Benchmark, which will query DNS you have available to you and rank them according to speed. There's another called NameBench. How would he change it? On the router. He'll go into his router through the browser, look at the DNS settings and change it there.