I am building SaaS to help people build VOD websites and I am planning on adding single CDN to serve content for all the websites. The content on those websites should be publicly available, but I want to prevent other websites (not built with my service) from embedding videos hosted on my CDN. Another thing I care about is reducing network cost. What is the best way to achieve those things? What the video format should be, and what is the best protection method in my case?
P.S. I am on AWS
Thank you in advance!
I thought about CORS policies and signed URLs. Don't know about other method and which of the above is better in my case (more secure, easier to implement, cheaper etc.).