What port does Netflix device streaming use?

Question

What port does Netflix device streaming use?

Is this port also used by the website direct streaming in the Silverlight app? What is the HTTP Content-Type if it uses port 80? Thanks.

Solution

Playback session(s) on devices are almost identical for browser-based sessions. The service uses HTTP and HTTPS session protocols (SSL-443) to netflix's CDN (https://moviecontrol.netflix.com)

Take a look at Pomelollc's blog here for a more detailed explanation of Netflix's video streaming security framework.

Comments

[unixman83]

I am curious about how this could interfere with a content-filtering transparent proxy. Specifically what is the content-type via HTTP? Thanks.

[Gustavo Sarmiento]

Sorry my friend, transparent proxies can be detected. And many of the streaming services block the use of them. See here: changeiponline.com/tag/transparent-proxy

[unixman83]

A transparent proxy of the kind I am using cannot be detected because no modification or redirection of packets is done, only filtering (like a firewall). I was just wondering what Content-Type Netflix uses so I don't filter on that.

[Gustavo Sarmiento]

According to developer.netflix.com/docs/REST_API_Conventions The Content-Type is x-application/x-gzip