Does the ICP license guarantee your site not to be blocked in China?
This is a complete misconception about the ICP license.
First, the ICP license applies only to websites that are hosted on a mainland China server. Foreign hosted websites cannot apply for an ICP license.
Second, only foreign hosted websites are blocked by the great firewall. The great firewall applies only to international connections from/to China and as such has no effect on locally hosted websites. If your site is hosted within China and happens to break the law, the government will instruct the datacenter to take down your website (or the whole server), there is no need for them to block the site. The whole point of the great firewall is to prevent access to websites hosted on servers on which the Chinese government has no control (servers physically located overseas).
