Updated from 4:22 p.m. EDT

Akamai ( AKAM) beat Wall Street's earnings estimates as profit rose 73%.

The Internet infrastructure company said net income in the third quarter was $24.3 million, or 13 cents a share.

Adjusted for some items, net income grew 49% year over year to $62.4 million, or 34 cents a share.

Revenue grew 45% year over year to $161.2 million.

Analysts surveyed by Thomson Financial had forecast earnings of 33 cents on revenue of $161 million.

"We were very pleased with our third quarter results and the demand we saw for our services, especially as we experienced increased momentum during September," Akamai CEO Paul Sagan said in a press release.

Shares of Akamai were recently off 21 cents in after-hours trading to $32.76.

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