Regular mail requires a street address so that the U.S. Postal Service knows where to deliver it. Websites and web pages also need an address so that computers know where to locate them.
A web address, also known as a Uniform Resource Locator or URL, is the location of a particular website or web page on the World Wide Web.
Types of Websites
The ending of a web address tells what type of institution the sponsor or owner of the site is. The most prominent domain name suffixes are listed below.
| SUFFIX | INDICATES | EXAMPLE |
| .com or .biz | Commercial business | www.sears.com |
| .gov | Government site | www.nasa.gov |
| .edu | Educational site (schools, universities) | www.kent.edu |
| .org | Non-commercial sites (organizations) | www.heightslibrary.org |
| .mil | U.S. military organization | www.af.mil |
| .net | Network operators | www.netzero.net |
Almost any individual can obtain a .com, .org or .net website. However, only the United States government can obtain a .gov site, only a member of the United Stated armed forces can obtain a .mil site, and only an academic institution may obtain an .edu site.
You may also see suffixes that relate to the state or country of origin. For example, Ohio officials may use state.oh.us as a suffix, while Pennsylvania officials use state.pa.us. A site based in the United Kingdom ends in co.uk while one from Russia ends in .ru.
For additional information see the List of Internet Top-Level Domains.