YouTube video SEO refers to the process of making your videos search-friendly. Just like a blog post, web page, or other content marketing, you can optimize your video on-page content so that it appears in the right search results.
Similar to Google, YouTube uses several ranking factors to display your content. Among them are:
Video watch time (relative to video length)
Channel watch time
Click-through rate (CTR)
Upload frequency
Session duration
Audience retention
Applying SEO best practices to your YouTube videos may not only help you rank well on YouTube, but also on Google. That’s because Google includes YouTube videos in its search results, depending on the topic.