Think of a domain name as similar to an entry in the phone book. Every site on the internet has a numeric ID called an IP (Internet Protocol) address. This address is in the form of xxx.xxx.xxx.xxx where x is a numeric value. Since it’s hard to memorize hundreds of IP addresses this is where domain names come into play. Rather than entering an IP address to access a website, you enter a domain name. Your web browser then looks up the domain name in DNS (Domain Name System), which is similar to directory assistance. DNS responds back with the IP address for the site you want to visit, and your browser then knows where to go (or “call”).
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