Sina Weibo the domestic microblogging services including the first weibo service Fanfou. Many popular non-China-based microblogging services like Twitter, Facebook, and Plurk have been blocked from viewing since then. Sina's CEO Charles Chao considered this to be an opportunity. SINA Corporation launched the tested version of Sina Weibo on 14 August 2009. Basic functions including message, private message, comment and re-post were made possible in September 2009. A Sina Weibo–compatible API platform for developing third-party applications was launched on 28 July 2010. On 1 December 2010, the website experienced an outage, which administrators later said was due to the increasing numbers of
Sina Weibo new "close friend" function enhanced the private social circle; In February 2013, the company reported total revenue of about 66 million us dollars, with more than 500 million registered users and 46.2 million daily active users; In April 2013, Alibaba acquired an 18% stake in Sina Weibo; In August 2013, Sina Weibo Taobao was launched to realize account sharing; In March 2014, sina weibo was renamed "weibo"; In April 2014, weibo was listed on Nasdaq; In November 2016, the 140-character limit for the release of the publisher was limited to less than 2,000 words; In December 2016, Sina Weibo posted