The company said net income rose to $42.3 million, or 23 cents per share, from $39.7 million, or 21 cents per share a year ago. Revenue rose 11 percent to $281.9 million.
Excluding items, the company earned 34 cents a share.
Analysts were expecting a profit of 33 cents a share on average, excluding items, on revenue of $278.9 million, according to Thomson Reuters I/B/E/S.
Akamai shares were up 82 cents in after-hours trading. The stock closed up 2 percent to $23.78 Wednesday on the Nasdaq stock market.