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What is a URL? The more commonly used name for URL is web address, this is the reference address of the website so that when you are trying to find a particular site, your browser is able to go load up the correct site. Every computer that is connected to the internet has what is called an IP address. This is like your physical address, it tells the web browsers like Google and Yahoo how to find your computer. The problem is that this IP address is made up of a series of numbers. This means that if you are looking for a specific IP address, you will have to remember these numbers, which can lead to a few difficulties for those of you who are like me and struggle to remember your own cell phone number! There is a solution to this however. A system called the Internet Domain Name System has been set up to translate these IP addresses into the far more easily remembered URL. URL stands for Uniform Resource Locator, and this made up of letters and symbols. This is what you type into a browser if you are looking for a specific web page. When you type a URL for a specific page into your browser, the browser sends this URL to a Domain Name System. The DNS then translates the URL into an IP address for the page you are looking for. The browser is then able to contact a server with the IP address, and be able to access the correct web page. http://afridesign.com/bulk-sms.php is an example of a URL. The first part of the URL is called the Protocol Identifier. This identifies what protocol will be used for the web page. Some Protocol Identifiers you might see are: http (HyperText Transfer Protocol). This is used for web pages being sent across the internet to your browser. ftp (File Transfer Protocol). This is used for transferring files (as opposed to web pages) across the internet. news. This is used for news groups The Protocol Identifier is followed by a colon, and then two forward slashes, before the domain name of the web site you are looking for. eg. "afridesign.com" is the domain name of this example URL. The "com" is the domain type. A few examples of domain types you might come across are: com - a commercial entity org - usually a non-profit organization
net - network co - also a commercial entity There are also domain types that specify countries, eg ca - Canada za - South Africa ml - Mali qa - Quatar The last part of the URL is the path name. In this example, the path name would be webhosting.php. The path name specifies the name of the page you are looking for on the website, so in this case you would be looking at the website hosting page on the Afridesign website. This is just a basic outline of what a URL does, there is far more to it, but hopefully now when you see "URL" you have a better idea of what is being spoken about. Interesting fact: According to the Time magazine, Sir Tom Berners-Lee the man who is credited with creating the internet has admitted he doesn't think the double forward slash (://) in a URL is a good idea. He says that if he could just change one thing about the internet, he would take out both slashes entirely, and just have the colon.
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