So, I have to confess that I often forget to do this, even though I know I should!
I am talking about changing your MP4 filename BEFORE you upload it to YouTube.
It should include the keyword that your video is about.
This gives you two more opportunities for traffic - it tells both Google and YouTube's algorithm what your video focuses on.
Here's an example - the screenshot below is my best-performing Short for one of my YouTube channels.
[attach]1116[/attach]But, how does it tell Google and YouTube what my video is about - it could be anything!
And, unfortunately, you cannot change the filename after you have uploaded it.
I hope this helps, thanks for reading!