LinkedIn Corp's quarterly revenue and profit has handily beaten estimates by analysts, as the world's biggest professional networking website operator earned more from its recruitment services business, advertisements and paid memberships.

On Thursday, 29 October, shares of the company, which also raised its full-year profit and revenue forecasts, jumped 12% in extended trading.

LinkedIn has been spending heavily on expansion by buying up companies, hiring sales personnel and increasing its presence in China and other markets outside the United States.

Expanded offerings helped boost revenue from the company's Talents Solutions business, which connects recruiters and job seekers, by 46% in the third quarter. The business accounted for nearly two-thirds of LinkedIn's total revenue.

Revenue from advertisements on its website rose 28%, while paid membership income increased 21%.

LinkedIn, which operates in over 200 countries and territories, said the total number of members rose 20% to 396 million at the end of the third quarter.

The company said the number of its subscribers in China had more than tripled since early 2014, when it launched a local language version, to over 13 million users currently.