Google's advertising business remained strong, bringing in nearly $11 billion, a 21 percent increase year over year. But the company's cost per click, or what it earns from advertisers per click, was down 16 percent from the same period of last year. The metric, which has been cause for some concern among financial analysts, did rise a single percentage point since the first quarter of this year.

Analysts polled by Thomson Reuters had expected Google to deliver earnings per share, excluding one-time items, of $10.04. Google delivered $10.12.