There are 4 Basic Steps

1. It is first necessary to have a web site address, also known as a URL or domain name. Typically, the www.yourwebsitename.com format is used. Other extensions are used for different types of organizations: .org, .edu, .gov, .info & .biz are a few of the more common ones. It is not difficult to register a URL, but often many names are already in use and you may not be able to get your first choice.
2. The next step is to find a web hosting service. Basically, the web host is a computer (server) that holds your website information. When another person attempts to access your site by entering your domain name (URL) into their web browser, your web site information is transferred to them from the server.
3. The third step is to design and program your web site in a way that web browsers can interpret. Browsers read a computer language known as HTML (hypertext markup language) and others such as XML, CSS, PHP, javascript, ASP and more. Not all browsers interpret computer languages in the same way. Internet Explorer, Mozilla Firefox, Apple Safari, Google Chrome and other browsers all understand different dialects of the same language. Therefore, the same web page looks differently depending upon which browser is used. Creating web sites that are compatible with multiple browsers is important, so that visitors see what you have intended for them.
4. Finally, the web site must be published or uploaded. This is the process of transferring the website from a local computer to the web host computer.