Upcoming domain change to ensure delivery of your video content

Hi everyone, Brendan here, Product Manager for Cloudflare Stream. Wanted to let everyone here know about an upcoming change that we’re making to ensure delivery of your video content.

Starting Aug 15, 2022, Cloudflare Stream will begin serving on-demand videos and live streams from a subdomain that is specific to your Cloudflare account: customer-{CODE}.​cloudflarestream.com. The existing domains that serve Stream and Stream Live content, videodelivery.net and cloudflarestream.com, will continue to work as they do today. Stream Player embed codes in the Dashboard and Stream API responses will use this new subdomain.

Do I need to take action?

Only if you use Content Security Policy (CSP) on your website. Otherwise, no action is required.

  • If you use CSP and the Cloudflare Stream Player, add *.cloudflarestream.com to the frame-src CSP directive.
  • If you use CSP and a 3rd party player, add *.cloudflarestream.com to the media-src, img-src, and connect-src directives, or the fallback directive, default-src.

You can read more documentation here.

All existing Stream Player embed codes and requests to videodelivery.net and cloudflarestream.com URLs will continue to work.

How does this change benefit me?

  • This change gives you the option to use Content Security Policy directives specific to your Stream subdomain, to ensure that only videos from your Cloudflare account can be played on your website
  • This change gives you the control to allowlist only your Stream account subdomain at the network-level to ensure that only videos from a specific Cloudflare account can be accessed on your network

Still have questions?

Comment below on this post. I’ll be reading all replies — we’re here to support you with this change and answer any questions you might have.


Will this change also help with the ongoing issues with local ISPs on videodelivery.net in any way?

E.g. the warning on the dash: “Cloudflare is investigating reports of videodelivery.net being inaccessible from certain local ISPs…”

Yes — by providing a subdomain that is specific to your Cloudflare Account, we’re trying to ensure that if an ISP does take action, the impact is isolated to the account hosting this content, and you are not impacted by the actions of other Stream customers.


I use both the signed URLs and allowed origins features. Will this change impact that at all? I want to confirm since my site has customizations to use signed URLs.

Several questions about this change -

  1. Are thumbnails going to continue using apex cloudflarestream[dot]com domain (and videodelivery[dot]net) after Aug 15 or will we be able to use customer-{code} for iframes and thumbnails? (can’t post a URL but title of doc is Display thumbnails · Cloudflare Stream docs)
  2. Do we know what customer-{code} will be yet? I didn’t see it in the dashboard

This change will not impact how signed URLs or allowed origins behave.

See below an example of how it will change the response from the Stream API.

  • Previously, the preview URL came from the domain watch.cloudflarestream.com, and the thumbnail URL from videodelivery.net.
  • With this change, these URLs each come from customer-m033z5x00ks6nunl.cloudflarestream.com, where m033z5x00ks6nunl is the code specific to your Cloudflare Account.
  "result": {
    "uid": "8d717d9d1b0920ea247a4eebd747b1fd",
    "preview": "https://customer-m033z5x00ks6nunl.cloudflarestream.com/b236bde30eb07b9d01318940e5fc3eda/watch",
    "thumbnail": "https://customer-m033z5x00ks6nunl.cloudflarestream.com/b236bde30eb07b9d01318940e5fc3eda/thumbnails/thumbnail.jpg",
    "readyToStream": false,
    "status": {
      "state": "downloading"
    "meta": {
      "downloaded-from": "https://storage.googleapis.com/stream-example-bucket/video.mp4",
      "name": "My First Stream Video"
    "created": "2020-10-16T20:20:17.872170843Z",
    "size": 9032701,
  "success": true,
  "errors": [],
  "messages": []

Thanks for the questions @m.alfih.

  1. After Aug 15 you will be able to use any of these — videodelivery.net, cloudflarestream.com, or customer-{code}.cloudflarestream.com, for iFrames and thumbnails. We recommend the latter.
  2. The code specific to your Cloudflare Account will be available in the Dashboard and in API responses starting August 15.
1 Like

We have lot of zones hosting competing clients, although serving them all from a host specific to our Cloudflare account is an improvement, is there on a horizon support for a zone specific Stream?

In the announcement you mentioned “add *.cloudflarestream.com to the frame-src CSP directive” isn’t that unnecessarily broad? i.e. shouldn’t the customer-{code}.cloudflarestream.com host be sufficient?

Hi @libor1!

  1. allowedOrigins might help you achieve what you’re looking for with zones: Secure your Stream · Cloudflare Stream docs
  2. Yes, if you want further control, you can restrict frame-src to your own subdomain, customer-{code}.cloudflarestream.com. This subdomain will be available in the Stream Dashboard and via the Stream API starting Aug 15th.