By If you've ever noticed really slow browsing speeds that bear no correlation to your actual connection speed then you may have problems with your DNS setting. DNS, Dynamic Name Service, is a method by which the address you type into the browser address bar is converted into numbers that help the browser route you to the correct website.
Most ISPs will assign these automatically or give you a couple of sets of numbers to type into your network connection settings or your router.
OpenDNS is a free, independent service, that replicates this service. Where OpenDNS triumphs over a regular ISP's DNS provision is that if your ISP has a problem with it's DNS servers then you can't browse the web. OpenDNS has a network of DNS servers and their system automatically uses the closest working server to you. If they have problems they have multiple DNS servers that just automatically take up the load.
The website has instructions on how to set up various routers. Be sure to print out or make a note of any existing settings before you start so that if things go awry then you can reset the settings back to their originals.
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