YouTube is the second largest search engine in the world, and as such, is a fiercely competitive environment just like Google Search. To be successful, you’ll need a quality optimisation strategy to go alongside your video production.
Unlike traditional SEO, YouTube rankings are driven by a totally different set of ranking factors - typically driven by watch time, engagement, and user behaviour rather than just keyword relevance.
The following guide to YouTube SEO will help you understand the basics of YouTube’s algorithm, to maximise the discoverability of your videos in YouTube search.
Just like regular SEO for Google, the video title and description play a crucial role in ranking on YouTube. They should be clear, concise, and optimised with relevant keywords.
Consider that your title and description needs to not only be keyword optimised, but encourage click-through, too.
Tags help categorise your videos and improve discoverability in search. While these aren’t hugely impactful, they still add further information to your video that can help its ranking performance in YouTube Search.

Take a look at the tags being used by competitors in their equivalent videos for inspiration, as well as producing your own keyword research (more on that later). There’s no limit to the number of tags you can use, but make sure you remain relevant to the topic of the video.
YouTube’s algorithm considers metadata such as video length, upload date, and view count when ranking videos.
There’s no ideal length of time for a video, but do consider what ranks well currently - if lots of 20-minute videos are ranking well, then perhaps your video ought to be around that length of time too.
YouTube prioritises videos with high watch times and retention rates.
As a rule of thumb, you should be aiming for every video to have as close to a 100% retention rate as possible. “100%” means that the video was watched all the way to the end. Obviously, this is not realistic for every single viewer, but if it were to be the case then it would be a great signal to YouTube that your content is highly engaging and worth recommending to others.
Engagement signals such as likes, comments, shares, and subscriptions impact rankings too.
If a video has lots of comments, or someone subscribes to your channel after watching a video, it’s a great signal to YouTube that the content was useful. There is a very strong correlation between number of comments and ranking position, so be sure to ask in your video for people to comment with their thoughts and questions.

Source: Backlinko
Click-through rate from search results is important too. If your video is showing up in search results, but isn’t being clicked on, that’s a negative signal to push your video down the results next time. Use your video thumbnails and video titles to encourage click through and explain at a glance why your video is worth watching.
Unlike for Google, YouTube does not provide direct keyword search volume data. However, there are ways to discover high-impact keywords and use these for video creation ideas.
You can also use YouTube’s Analytics to see what search terms your videos showed up for, which can be a great resource to see how you can improve your videos - or as idea generation for future topics.
YouTube’s AI scans video transcripts, so verbal content impacts search rankings. If you have a target set of keywords, make sure to say those words within the video. The AI will therefore naturally pull those keywords into the transcript, increasing the relevance of your video for those terms.

Captions help to better describe your video content without the need for audio, and provides an accessible way for those hard of hearing to learn from your video, too.
Click-through rate is a highly important metric for YouTube’s algorithm, too. Even if you rank in 1st position, if lower-ranked videos get more clicks than you, it’s very likely that your ranking will drop over time.
Don’t rely solely on YouTube Search; external promotion is key. Remember how engagement metrics are important to YouTube rankings? You can only get engagement by having people watch the video in the first place… So, use all of your marketing activities to promote your YouTube content where it makes sense to do so.
And lastly, your YouTube channel can be optimised too. Make sure to consider the type of keywords that people would be searching for to find a channel that creates content like yours, and optimise for it.
Unlike SEO for Google, YouTube SEO prioritises engagement, watch time, and retention over purely keyword-driven strategies. Consider that unlike a web page, YouTube’s algorithms can only be based on the success of a video - i.e. engagement rates, watch times, likes, comments, subscription rate.
A video is a video, and so engagement data becomes much more valuable in terms of a ranking factor.
To succeed, focus on creating high-quality content that keeps viewers engaged while optimising metadata, keywords, and external promotion strategies. Optimising your metadata and tags alone will not provide success: Ultimately your video content needs to be quality first and foremost.
For help with SEO or Video Production, speak to the Reflect Digital team where our experts can help support with your social media and optimisation needs. Contact Us today.
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Andy drives high-quality, high-converting organic traffic to a wide range of businesses, from local companies to global brands.
A strategic search marketer, Andy’s expertise lies predominantly in e-commerce SEO services, websites and technical SEO, and is particularly adept at finding opportunities to provide quick wins and long-term return on investment.
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