Google is providing you some valuable info on its YouTube blog about how to make our YouTube videos more discoverable in search results. They have just started a series where they would lay out every aspects of how to enhance our youtube visibility in search engines.
Tips to follow:
First of all you should have a basic understanding of how google index its search results so you know how it crawl and index your video.
You can use its tools to your videos’ advantage,titles, tags and rich descriptions (all categorized as metadata) will help your discoverability and increase CPMs.
Descriptions can include up to 5,000 characters, tags can be 120 characters. Make a goal to use every one of these limits for each of your videos.
The more words you include in your description, the higher your chances of being discovered by searchers, which means the larger your audience can grow, and the more potential revenue you can earn.
You can also check out the Google Insights for Search tool built for online advertisers.
Don’t just include tags upon video upload. If you have a popular video that continues to get views over time, update your tags regularly to take advantage of new searches. Online search behavior is always changing, so your tags should change along with it.
If you have a transcript available, make sure to upload it and turn on captions. This can help your discoverability as it will give us more data points to index your video.