How to implement a permalink to an online video?

Question

Video

Hello!
We urgently need to launch a site that has videos. These videos will subsequently need to be replaced with others that are longer in time. The problem is that the site files need to be sent to the competition jury. And we can replace links in site files only on our hosting. Apparently, you need to specify permanent links to videos so that both online and offline versions of the site load video files using the same links. How to do it? Can't be on youtube?
Can use very fast hosting, but which one? We tried to upload the video to our hosting - as a result, the browser freezes.
What do you recommend specifically?

Answer 1

"We tried to upload the video to our hosting - as a result, the browser freezes"...
So the problem may be in the video, if the browser freezes. Try a video in another format - webm for example and broadcast from your hosting.