Netflix on Thursday reported that its subscriber growth slowed dramatically during the summer, a sign the huge gains from the video-streaming service's crackdown on freeloading viewers is tapering off.

The 5.1 million subscribers that Netflix added during the July-September period represented a 42% decline from the total gained during the same time last year. Even so, the company's revenue and profit rose at a faster pace than analysts had projected, according to FactSet Research.

Netflix ended September with 282.7 million worldwide subscribers – far more than any other streaming service.

The Los Gatos, California, company earned $2.36 billion, or $5.40 per share, a 41% increase from the same time last year. Revenue climbed 15% from a year ago to $9.82 billion. Netflix management predicted the company's revenue will rise at the same 15% year-over-year pace during the October-December period, slightly than better than analysts have been expecting.

The strong financial performance in the past quarter coupled with the upbeat forecast eclipsed any worries about slowing subscriber growth. Netflix's stock price surged nearly 4% in extended trading after the numbers came out, building upon a more than 40% increase in the company's shares so far this year.

"We had a plan to reaccelerate growth and we delivered on that plan," Netflix co-CEO Ted Sarandos said during a video call discussing the results.

The past quarter's subscriber gains were the lowest posted in any three-month period since the beginning of last year. That drop-off indicates Netflix is shifting to a new phase after reaping the benefits from a ban on the once-rampant practice of sharing account passwords that enabled an estimated 100 million people watch its popular service without paying for it.

The crackdown, triggered by a rare loss of subscribers coming out of the pandemic in 2022, helped Netflix add 57 million subscribers from June 2022 through this June — an average of more than 7 million per quarter, while many of its industry rivals have been struggling as households curbed their discretionary spending.

Netflix's gains also were propelled by a low-priced version of its service that included commercials for the first time in its history. The company still is only getting a small fraction of its revenue from the 2-year-old advertising push, but Netflix is intensifying its focus on that segment of its business to help boost its profits.

Netflix co-CEO Greg Peters predicted the company's ad sales will double during the next year while remaining a just a sliver of total revenue that will continue to be propelled by subscription fees.

"We've got a lot of work ahead of us," Peters said in a video call with investors. But he predicted Netflix's foray into ads would eventually prove to be as successful as its recent crackdown on password sharing was.

Although he was impressed by most of Netflix's report, Forrester Research analyst Mike Proulx called the slowdown in subscriber growth "concerning," especially in the U.S., where the company is finding it increasingly difficult to attract more viewers.

"That's why accelerating growth via advertising becomes paramount to Netflix's go-forward strategy," Proulx said.

As part of its evolution, Netflix has been increasingly supplementing its lineup of scripted TV series and movies with live programming, such as a Labor Day spectacle featuring renowned glutton Joey Chestnut setting a world record for gorging on hot dogs in a showdown with his longtime nemesis Takeru Kobayashi.

Netflix will be trying to attract more viewer during the current quarter with a Nov. 15 fight pitting former heavyweight champion Mike Tyson against Jake Paul, a YouTube sensation turned boxer, and two National Football League games on Christmas Day.