Twitter.

For other uses, see Twitter (disambiguation).

"Tweeted" redirects here. For other uses, see Tweet (disambiguation).

Twitter, Inc.

The login/sign up page of Twitter
Type of business	Public
Type of site	News and social network service
Available in	Multilingual
Traded as	NYSE: TWTR
Founded	March 21, 2006; 10 years ago[1]
Headquarters	San Francisco, California, U.S.[2]
Coordinates	37.7768°N 122.4166°WCoordinates: 37.7768°N 122.4166°W
Area served	Worldwide
Founder(s)	Jack Dorsey Noah Glass Biz Stone Evan Williams
Key people	Omid Kordestani (Executive Chairman) Jack Dorsey (CEO)
Industry	Internet
Revenue	US$2.21 billion (2015)[3]
Net income	US$-521 million (2015)[3]
Employees	3,860 (June 2016)[4]
Subsidiaries	Vine Periscope
Website	twitter.com
Alexa rank	9 (October 2016)[5]
Registration	Required to post, follow, or be followed
Users	313 million active users (June 2016)[6]
Launched	July 15, 2006[7]
Current status	Active
Written in	Java,[8][9] Ruby,[8] Scala,[8]JavaScript[8]

Twitter (/ˈtwɪtər/) is an online news and social networking service where users post and read short 140-character messages called "tweets". Registered users can post and read tweets, but those who are unregistered can only read them. Users access Twitter through the website interface, SMS or mobile device app.^[10] Twitter Inc. is based in San Francisco and has more than 25 offices around the world.^[11]

Twitter was created in March 2006 by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams and launched in July, whereby the service rapidly gained worldwide popularity. In 2012, more than 100 million users posted 340 million tweets a day,^[12] and the service handled an average of 1.6 billion search queries per day.^[13][14][15] In 2013, it was one of the ten most-visited websites and has been described as "the SMS of the Internet".^[16][17] As of March 2016, Twitter had more than 310 million monthly active users.^[6]