SAN FRANCISCO — Google’s attempted detour around China’s Internet censorship rules was met with countermeasures Tuesday by the communist government, which blocked people on the mainland from seeing search results dealing with such forbidden topics as the pro-democracy movement.
China’s maneuver, as well as its public rebuke of Google’s decision to stop censoring searches for the government, rattled some of the company’s investors, advertisers and users.
The chief concern is whether Google poisoned its business in one of the world’s most promising Internet markets. An analyst critical of Google’s move predicted the maneuver will cause the company’s stock to fall by as much as $50 — or about 10 percent — in the coming weeks.
The stock fell $8.50, or 1.5 percent, to $549 Tuesday.
Last month, Google said it no longer felt comfortable complying with the country’s demands that it censor Web content deemed objectionable by the communist rulers. On Monday, Google began sending Web searchers in mainland China from the China-based to .hk, based in Hong Kong. The former British colony has an open Internet, and Google is not legally required to censor results there.
But that end-run doesn’t prevent China’s government from using its Internet filters to block some search results and websites from being seen in the mainland.
On Tuesday, a search request from within mainland China about the 1989 Tiananmen democracy protests returned a notice that the “page cannot be displayed.” It also caused the Web browser to disconnect for several seconds. Under the old , a similar query usually returned a list of sanitized sites about Tiananmen Square.
If the Chinese leaders really want to foil Google, they could block all mainland access to the Hong Kong service. Or they could exert their control of Chinese telecommunications companies to slow the speed of queries and responses, to help drive traffic to homegrown rivals.
