Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a CDN with Level3 via

Anyway to use this CDN with html5 video players. The support people say it can only be used via RTMP, and RTMP seems to be flash only.

I want to give the ability for the video to be viewed on mobile, and downloaded easily.

share|improve this question

Serve up your videos via HTTP. Every Flash-based player supports that, and so do all mobile devices that use the HTML5 <video> tag. You may lose some functionality versus RTMP, such as seeking to parts of a video that have not been downloaded yet. You should encode into H.264 to support the most devices (both Flash players and most mobiles will play that via the HTML5 video tag), possibly adding a WebM version as a fallback for Firefox users without Flash.

See Kaltura as an example of an open-source video player that automatically works with Flash or HTML5 depending on the device's capabilities. All you do is put <video> tags in your pages and include the player JavaScript.

All CDNs support serving any content via HTTP, so this should just work with

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.