How Netflix Works

Content Streaming on Netflix

Netflix offers an ever-increasing collection of commercial-free content to subscribers who pay for unlimited streaming services.
Screen capture by Stephanie Crawford for HowStuffWorks

By 2007, high-speed Internet access from home had become more affordable and more common. At the same time, home Internet use included an increasing amount of downloading and streaming of media content. Netflix got a jump on that market by adding unlimited online streaming as one of its subscription options starting in January 2008.

To stream content from Netflix, you need a subscription that includes unlimited streaming. As of fall 2011, you could have unlimited streaming only for $7.99 per month. Unlimited DVD rental service runs an additional $7.99 per month.


When you subscribe to Netflix streaming, the following Netflix features are available to you:

  • an "Instant" queue alongside your "DVD" queue
  • "Play" buttons in both your DVD and "Instant" queues if the content is available for streaming
  • options throughout the site to "Play" or "Add to Instant Queue" in addition to the red "Add" and green "Save" options for the DVD queue
  • streaming access via more than 200 different devices, including game consoles (the Wii, Xbox 360 and PS3), mobile devices (iPhone, iPad and iPod touch), and Apple TV and Google TV

The first generation of Netflix streaming used Microsoft Silverlight, a platform that software developers can use to drive user interaction on the Web and mobile devices. Since Netflix required Silverlight, streaming was limited to computers and devices that could install and run the Silverlight software.

When Netflix transitioned its Web site to Amazon's cloud services in 2010, the company took that opportunity to incorporate the latest Web technology. This included HTML5, the new and continually developing standard for interactive Web content. By switching from Silverlight to HTML5, Netflix hopes to deliver content to more devices simply based on whether the software on that device was standards-compliant with HTML5. This means opening up Netflix streaming to more Web browsers, consoles and mobile devices [source: Caincutti, StrategyEye].

Though online streaming on Netflix is convenient, it does have a few disadvantages. First, not all Netflix content is available online. Netflix has continually expanded its online content selection, but there are still thousands of films you can only view on DVD. Second, not all DVD content is available online. For example, a foreign TV show on DVD may have both subtitles and English dubbing available, but Netflix might only stream the original language with subtitles. Easter eggs and other special DVD features are also limited through Netflix streaming.

So far, we've looked at the two side of Netflix's business, DVD rental and online streaming. Next, we'll look how Netflix's competition has changed over time on both of these fronts.