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Long web addresses can make it hard for people to find your web site. In e-mails or documents, long addresses do not fit on a single line and break to the next line. TinyURL.com is a free Internet redirection service that translates long URLs to shorter ones. You can also hide affiliate addresses with this service. URL stands for... more »
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Email has been used since well before the Internet started to see widespread public use in the late 1990s. In the past decade, email clients have grown to support HTML (Hyper Text Markup Language)-formatted email in addition to the traditional text-formatted email. The use of HTML and URLs (Uniform Resource Locators) in the context of... more »
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In computing, a Uniform Resource Locator (URL) is a subset of the Uniform Resource Identifier (URI) that specifies where an identified resource is available and the mechanism for retrieving it. In popular usage and in many technical documents and verbal discussions it is often incorrectly used as a synonym for URI.RFC 3305 "URI Partitioning: There is some confusion in the web community over the partitioning of URI space, specifically, the relationship among the concepts of URL, URN, and URI. The confusion owes to the incompatibility between two different views of URI partitioning, which we call the classical
and contemporary views."
History
The Uniform Resource Locator was created in 1994http://www.ietf.org/rfc/rfc1738.txt by Tim Berners-Lee as part of the URI."URL Spec"> The Uniform Resource Locator evolved out of the Universal Resource Locator "SearchNetworking.com Definitions">. Berners-Lee regrets the use of dots to separate the route to the server in the URI, and wishes he had used slashes for the whole thing. For example, http://www.serverroute.com/path/to/file.html would look like http:com/serverroute/www/path/to/file.html.
Berners-Lee has also "apologised" for the two slashes that precede the server name .
Syntax
Every URL is made up of some of the following: the scheme name (commonly called protocol), followed by a colon, then, depending on scheme, a hostname (alternatively, IP address), a port number, the pathname of the file to be fetched or the program to be run, then (for programs such as CGI scripts) a query stringRFC 1738"parse_url">, and with HTML files, an anchor (optional) for where the page should start to be displayed."Syntax">
The combined syntax looks like:resource_type://username:password@domain:port/filepathname?query_string#anchor
* The scheme name, or resource type, defines its namespace, purpose, and the syntax of the remaining part of the URL. Most Web-enabled programs will try to der read more at » http://en.wikipedia.org/wiki/Uniform+Resource+Locator
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