The American Twitter company, the world's most popular social network and microblog service website, a typical application of microblogging, all Twitter messages are limited to 140 characters, known as the "Internet SMS service"

Twitter (unofficial Chinese commonly known as Twitter) is an American social network service and microblogging service, and is one of the ten most visited websites on the Internet in the world. It is a typical application of microblogging. It allows users to update messages up to 140 characters long, also known as "Tweets." The service was founded by Jack Dorsey in March 2006 and launched in July of that year. Twitter is very popular all over the world, and as of March 2012, Twitter has 140 million active users, according to Dick Costello, the current CEO of Twitter, and Twitter has been described as "the messaging service of the Internet".

Twitter is a popular social network and microblogging service that allows users to post (tweet) their latest news and ideas in the form of text messages (tweets) on mobile phones, which can be linked to IM instant messaging software. All Twitter messages are limited to 140 characters. In 2006, Obvious, a startup founded by blogging technology pioneer Evan Williams, launched the big microblogging service. In the initial stage, the service was only used to send text messages to a friend's phone.

In February 2012, Twitter claimed to have the ability to implement web content filtering for different countries and regions, which attracted attentionIn October, Twitter acquired Cabana, a U.S.-based mobile app development tool manufacturer.

In September 2013, Twitter went public offering; On the evening of November 7, Twitter stock was listed on the New York Stock Exchange under the ticker symbol "TWTR". It opened at $45.1, up 73.46% from the issue price, and the current market capitalization is close to $40 billion.