The Login/Sign Up page of Twitter
Type Public
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°W
Area served Worldwide
Founder( s) Jack Dorsey
Noah Glass
Biz Stone
Evan Williams
Key people Jack Dorsey ( CEO)
Omid Kordestani ( Chairman)
Industry Internet
Revenue US$2.21 billion ( 2015) [3]
Net income US$ -521 million ( 2015) [3]
Owner Jack Dorsey & Evan Williams[4]
Employees 3, 898 ( March 2016) [5]
Subsidiaries Vine
Periscope
Website twitter.com
Written in Java, [6][7] Ruby, [6] Scala, [6] JavaScript[6]
Alexa rank 8 ( July 2016) [8]
Type of site Social network service
Registration Required to post, follow, or be followed
Users 310 million active users ( March 2016) [9]
Available in Multilingual
Launched July 15, 2006[10]
Current status Active
Twitter ( /'tw?t?r/) is an online social networking service that enables users to send and read short 140-character messages called tweets. Registered users can read and post tweets, but those who are unregistered can only read them. Users access Twitter through the website interface, SMS or mobile device app.[11] Twitter Inc. is based in San Francisco and has more than 25 offices around the world.[12]
Twitter was created in March 2006 by Jack Dorsey, Evan Williams, Biz Stone, and Noah Glass and launched in July 2006. The service rapidly gained worldwide popularity, with more than 100 million users posting 340 million tweets a day in 2012.[13] The service also handled 1.6 billion search queries per day.[14][15][16] In 2013, it was one of the ten most-visited websites and has been described as the SMS of the Internet.[17][18] As of March 2016, Twitter has more than 310 million monthly active users.[9]
