Not necessarily, and here’s why.
Imagine that you have taken a video recording on a mobile device or some other kind of recorder and you'd like to add it to your website. Depending how long your video is in minutes will determine how large the video file is in megabytes and this is important in respect of whether you can upload your video directly to the website or not.
In general it's not a good idea to upload your videos directly to the website like you do with images. Quite simply, videos can be huge!
Unlike an image which might be up to 1 or 2 MB in size, video which lasts 10 or 15 minutes (let's say it is a class assembly video) could be 1 or 2 GB in size (a thousand times larger)! Even a one minute video recorded in high quality can be as much as 160MB (see this video size calculator).
Unfortunately, the website will not allow you to upload files as large as that and you wouldn't want to because it would simply consume too much of your available disk capacity/space. For this reason, we always recommend that you upload your video files to YouTube, using your own school private YouTube channel. Once you have uploaded your video to YouTube, you can then embed the video code that YouTube provides into the webpage quickly and easily.
What if it's a large video?
If your video is large, as noted above, you are recommended to upload the video to YouTube and work from there. We have a page dedicated to working with YouTube videos which are to be found in the sidebar.