Web (AKA the Internet) — URL’s

Web addresses. There is an address box on the top left of your browser. A web address (the thing that starts with http://www) is the way you find a specific web page. Generally they look like this: http://www.name.com. There are literally billions of them. They begin with http:// http stands for HyperText Transfer Protocol. In most cases, you do not have to enter that part because your browser will automatically insert it for you. Then there is usually a www.In most cases, you do NOT need to type it either. Next you will have some kind of a name. It is called the second level domain name – e.g., Rogers, Yahoo, Microsoft.

Some are quite creative, but more often than not, you can pretty much guess them. Then there is the part after the name. It begins with a (.) period, but is commonly called “dot.” It can be a lot of different things. Most common ones are .com, .org, .net, .edu, .ca, or this one which is .info. These extensions are called “top-level domain names.” The origins of these top-level domain names can be confusing and they are sometimes not accurate. .ca is reserved for Canada.

There are several hundred country top level domain names, and a lot of generic ones. That does not mean a Canadian has to use a .ca. Also important is that email addresses use a second level domain name and top level domain name – e.g. rogers.com. In almost all cases, upper and lower case letters are inconsequential – they can be either. After the top level domain name, there can be any number of characters and they can get to be huge strings, with frequent /’s. The whole address is actually called a Uniform Record Locator (URL) – another name for a web address.

The web actually works on IP (Internet Protocol) addresses. The address you type actually gets converted to an IP address to find the server that has the web page you want. Every device on the Internet has an IP address. For example the modem you are connected to right now has one.