Namebench looks for the fastest DNS (Domain Name System)
servers accessible to your computer. You can think of a DNS server as a
phone book: When you want to dial a company on the phone, you may have
to flip through a phone book by name to find their phone number. On the
internet, when you want to visit "www.abiral.blogspot.com", a DNS server needs to
looks up the correct IP Address for you.
Over
the course of loading a single web page, your computer may need to look
up a dozen of these addresses. While your internet provider usually
automatically assigns you one of their servers to handle looking up
these addresses, there may be others that are significantly faster.
While namebench may significantly increase the speed of every day
websurfing, it will not increase the speed of large file downloads such
as watching movies online. This is because your computer only has to
perform DNS lookups to start the download of the movie. Once the
download initiates successfully, your download performance is at the
mercy of your internet provider.
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