Upadhyay said the standard could be implemented independently of Google by any website owner or web service provider, though browsers will need to be modified to support it.
Baidu , the Chinese Web search provider, posted strong earnings in its latest quarter, doubling net income in only 12 months as it continued to add online marketing customers.
Among other factors, Baidu shares have been under pressure from growing concerns about loss of market share to Qihoo 360, the leading Web browser provider in China, which recently entered the Internet search market.