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
Han Jian (Weibo warlord) to seize nearby Heyang Circuit (河陽, headquartered in modern Jiaozuo, Henan), took 30,000 soldiers and attacked Heyang's military governor Zhuge Shuang at Xiuwu (修武, in modern Jiaozuo). Zhuge abandoned Xiuwu, and Han left forces to defend Xiuwu, before turning north to pillage Xing (邢州, in modern Xingtai, Hebei) and Ming (洺州, in modern Handan) Prefectures (both belonging to Zhaoyi Circuit (昭義, headquartered in modern Changzhi, Shanxi)); he then returned to Weibo. Later in the year, Han attacked Yun Prefecture (鄆州, in modern Tai'an, Shandong), the capital of Tianping Circuit (天平), and Tianping's military governor Cao Cunshi (曹存實) died in battle.