comScore reports Google's global search engine market schare dropped from 63.1 percent in January to 62.8 percent in February while the search giant's U.S. share rose.
The data from comScore showed Google's dominance of the worldwide market for Web search dipping to 62.8 percent in February from 63.1 percent the month before, according to an analyst, who declined to be named.
Analysts view the monthly comScore search market data as an indicator on growth trends in Web search. Several recent monthly reports have sparked debate on Wall Street over whether the market is maturing, even though year-to-year growth rates remain high.
The volume of U.S. searches done through Google dropped to 5.86 billion from 6.14 billion in February, and the worldwide volume of searches also declined, comScore said on Wednesday.
"We are continuing to see deceleration in growth in Web search," said Jefferies & Co analyst Youssef Squali. "Google's month-over-month 5 percent decline is a little surprising, but all of the major Web search names were down."
The drop was partly due to February being two days shorter than January, a comScore spokesman said. However, several analysts said it may also reflect a maturing market. By contrast, searches rose 9 percent in January over December.