Whois & Analysis for hec.su

URL shortening is a technique on the World Wide Web in which a Uniform Resource Locator (URL) may be made substantially shorter and still direct to the required page.

This is achieved by using a redirect which links to the web page that has a long URL.

For example, the URL "" can be shortened to "", and the URL "" can be shortened to "".

Often the redirect domain name is shorter than the original one.

A friendly URL may be desired for messaging technologies that limit the number of characters in a message (for example SMS), for reducing the amount of typing required if the reader is copying a URL from a print source, for making it easier for a person to remember, or for the intention of a permalink.

In November 2009, the shortened links of the URL shortening service Bitly were accessed 2.1 billion times.

Electronic mail, or email, is a method of exchanging digital messages between people using digital devices such as computers and mobile phones.

Email first entered substantial use in the 1960s and by the mid-1970s had taken the form now recognized as email.

Email operates across computer networks, which today is primarily the Internet.

Some early email systems required the author and the recipient to both be online at the same time, in common with instant messaging.

Today's email systems are based on a store-and-forward model.

Email servers accept, forward, deliver, and store messages.

Neither the users nor their computers are required to be online simultaneously; they need to connect only briefly, typically to a mail server or a webmail interface, for as long as it takes to send or receive messages.

A Uniform Resource Locator (URL), commonly informally termed a web address (a term which is not defined identically) is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it.

A URL is a specific type of Uniform Resource Identifier (URI), although many people use the two terms interchangeably.

A URL implies the means to access an indicated resource and is denoted by a protocol or an access mechanism, which is not true of every URI.

Thus is an URL, while is not.

URLs occur most commonly to reference web pages, but are also used for file transfer (ftp), email (mailto), database access (JDBC), and many other applications.

Twitter is an online news and social networking service where users post and interact with messages, "tweets," restricted to 140 characters.

Registered users can post tweets, but those who are unregistered can only read them.

Users access Twitter through its website interface, SMS or a mobile device app.

Twitter Inc. is based in San Francisco, California, United States, and has more than 25 offices around the world.

In computer and machine-based telecommunications terminology, a character is a unit of information that roughly corresponds to a grapheme, grapheme-like unit, or symbol, such as in an alphabet or syllabary in the written form of a natural language.