Sina Weibo and companies. Also, there is a graph and a declaration on its user page to show the verification. There are several kinds of verifications: personal verification, college verification, organization verification, verification for official accounts (accounts of government departments, social media platforms and famous companies) weibo master (people bind the accounts with their phone numbers and their followers). When the number of microblogs reaches a threshold, users can apply for the verification of "Weibo Master". Sina produced mobile applications for various platforms to access Sina Weibo, the platforms include Android, BlackBerry OS, iOS, Symbian S60, Windows Mobile and Windows Phone. Sina
Sina Weibo users and posts. Registered users surpassed 100 million before March 2011. Since 23 March 2011, t.cn has been used as Sina Weibo's official URL shortening domain name in lieu of sinaurl.cn. On 7 April 2011, weibo.com replaced t.sina.com.cn as the new domain used by the website. Meanwhile, the official logo was also updated. In June 2011, Sina announced an English-language version of Sina Weibo would be developed and launched, where the contents would still be controlled by China's laws. On January 11, 2013, Weibo (a subsidiary of SINA Corporation) and Alibaba China (a subsidiary of Alibaba Group) signed a strategic