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This is what identifies it to other computers, and website servers are no different.
Google.com's IP address, for example, is "126.96.36.199".
If your computer can't look up IP addresses quickly, it seriously slows down your browsing.
Fortunately, there are other DNS servers out there you can use.
A DNS, also called a nameserver, is like the phone book of the Internet.
Below these boxes are a series of charts and graphs.