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How the YouTube Algorithm Works (Or Why Your Videos Aren’t Getting Views)

Many video creators, whether professional YouTubers or brands on YouTube, regard the YouTube algorithm as a complete mystery—a higher power that rules over your view counts, completely outside of your control.

They believe there’s no understanding how the YouTube algorithm works. It’s one of the platform’s most carefully guarded secrets, after all.

Except it isn’t. 

In a research paper published in 2016, a group of Google engineers shared their plans for how videos could be surfaced through YouTube’s recommendation engine for a better user experience.

research paper detailing plans for the youtube's recommendation engine

While it didn’t garner much attention at the time, it bears a lot of relevance to the YouTube of today since, according to YouTube’s Chief Product Officer, 70% of YouTube views now come through this recommendation engine.

Much of the discussion about getting views on YouTube focuses on YouTube SEO, social media promotion, and getting subscribers. While these contribute to the discovery of your videos, alone they don't unlock the lion's share of views you stand to gain from YouTube's recommendation engine (via YouTube's homepage and “recommended for you” suggestions).

If you want to get more video views in the long term, you need to understand a few things about how the YouTube algorithm works in 2019.

Table of contents

  1. How the YouTube algorithm works

  2. Rethinking "clickbait" for 2019

  3. Tips for getting more YouTube views

  4. Conclusion

How the YouTube algorithm works

In this research paper published by Google engineers Paul Covington, Jay Adams, and Emre Sargin, they break down the signals they use to rank videos for YouTube recommendations:

  1. Click-through rate (the likelihood of someone clicking on your video after seeing it)

  2. Watch time (the combined amount of time that viewers spend watching your videos)

  3. How many videos the user has watched from your channel

  4. How recently the user watched a video about this topic

  5. What the user has searched for in the past

  6. The user’s previously watched videos

  7. The user’s demographic information and location

The first three signals are the only ones you can influence directly. The rest depend on factors outside of your channel in order to personalize the recommendation. 

These Google engineers even state that their final ranking objective is “generally a simple function of expected watch time per impression. Ranking by click-through rate often promotes deceptive videos that the user does not complete (‘clickbait’) whereas watch time better captures engagement.”

Some might interpret this to mean that optimizing for click-throughs will get you penalized by YouTube, but that’s a huge misunderstanding.

YouTube is only penalizing bait-and-switch tactics—overpromising before the click and delivering disappointing content after it. Click-through rate is still as important as ever. You can't generate a lot of watch time for YouTube without getting clicks first, after all. 

You can even see these priorities reflected in YouTube Studios: YouTube’s new analytics dashboard.

youtube studios analytics

Under the Reach Viewers tab, you can see the following metrics, which together illustrate YouTube’s new emphasis on click-through rate and watch time: 

  • Impressions: How many times your video thumbnails were shown to viewers as a recommended video, on the homepage, or in search results.

  • Traffic sources for impressions: Where on YouTube your video thumbnails were shown to potential viewers.

  • Impressions click-through rate (CTR): How often users watched a video after seeing your thumbnails (based on logged-in impressions).

  • Views from impressions: This measures how often viewers watched your videos after seeing them on YouTube.

  • Watch time from impressions: Watch time that originated from people who saw your videos and clicked them on YouTube.

Rethinking “clickbait”: The relationship between click-through rate and watch time

Over the past few years, you’ve likely seen articles about YouTube’s war against clickbait as the platform was flooded with misleading video thumbnails and exaggerated titles trying to game the algorithm. 

As a result, the pendulum swung towards watch time as the key signal for ensuring the quality of a video. Many YouTube creators reacted by abandoning the tactics that helped them capture attention while competing against the hundreds of hours of video content uploaded every minute to YouTube.

Only that didn’t work either.

In a Q&A about prioritizing signals in the YouTube algorithm, one of the same Google engineers from the aforementioned paper admitted, “It’s constantly a struggle, because mostly you’re combating abuse at the same time. So if you optimize for click-through rate you get clickbait, and if you optimize for watch time, you get incredibly long videos.

If a video has a high click-through rate but generates low watch time, then it’s clickbait without a doubt. But if attention-grabbing thumbnails and titles get people to click through and watch your videos, then that’s not only fair in YouTube’s eyes—it’s ideal.

And that brings us to the crux of my point: If you want to get more views through YouTube's recommendation engine, you need to optimize your channel and your videos for both click-through rate and watch time.

How to get more views through YouTube recommendations

1. Stick to a consistent premise or format for your YouTube channel

Most great YouTube channels or series can be summed up in 5 seconds:

On the flipside, many YouTube channels struggle to gain traction because they treat their YouTube channel as a place to upload all their video content, rather than as a home for a consistent video series.

Consistency is the foundation for success on YouTube—without it, you might be able to capture attention, but you won’t be able to keep it.

YouTube channels that find their consistency are able to sustainably grow their subscriber base and viewership because it makes it easier for people to decide to watch more of their content and subscribe to their channel.

The First We Feast channel embodies the kind of consistency we’re talking about—celebrities eating food—with multiple series that are essentially variations of the same premise. 

first we feast youtube channel is a good example of consistency

Below, you can see how this consistency feeds their subscriber growth over time. Whenever a video is lucky enough to “go viral”, it actually has a better shot at converting each fleeting viewer into a lasting subscriber because of the stickiness of the premise and the consistency they can find across the rest of the channel’s content.

first we feast's subscriber growth over time on youtube

If you want to deviate from your core premise, it’s best to do it on a separate YouTube channel to avoid undermining your own efforts. First We Feast, for example, is owned by Complex, which has a very different focus and audience. The channels are connected under the Featured Channels tab, but otherwise, they don’t really intersect.

how first we feast separates itself from complex

2. Feed the recommendation engine with other sources

Newer YouTube channels can’t rely on the recommendation engine to drive all their views. 

Recommendations, after all, are mostly based on how viewers have viewed and interacted with your videos in the past. YouTube needs data to base the recommendations on and there's no data without people watching your videos. So exercise all the usual efforts to promote your videos, such as:

  • Sending new videos to your email list

  • Partnering with the press or other influencers

  • Promoting your videos on social media

But above all, focus on YouTube SEO and getting more subscribers, not only to garner video views over the long-term but also because what a user repeatedly consumes on-platform and what a user subscribes to are key signals that the YouTube algorithm uses to make personalized recommendations.

In the paper, the engineers note that “the most important signals are those that describe a user’s previous interaction with the item itself and other similar items… As an example, consider the user’s past history with the channel that uploaded the video being scored—how many videos has the user watched from this channel? When was the last time the user watched a video on this topic?” 

If you can get a new user to continue watching more content after clicking through to one of your videos, you can increase the chances of your videos getting recommended to them the next time they open YouTube. 

3. Create thumbnails that get clicked

We’ve established that click-through rate is still important and that YouTube prioritizing watch time is simply a countermeasure against low-quality clickbait.

So now let’s talk about the elephant in the room—improving your clickthrough rate—using two great sources of inspiration for clickable thumbnails: YouTube’s trending videos tab and Netflix.

Have closeups of emotive faces or action shots

Look around YouTube and you’ll see no shortage of highly expressive faces on video thumbnails.

According to a study by Netflix about the performance of artwork on the platform, “emotions are an efficient way of conveying complex nuances. It's well known that humans are hardwired to respond to faces—we have seen this to be consistent across all mediums. But it is important to note that faces with complex emotions outperform stoic or benign expressions.

One of the earliest trends also noted by Netflix, which is worth carrying forward to your own thumbnails, is that an image’s tendency to win against others dropped when it contained more than 3 people.

expressive faces in youtube thumbnails

You can optimize your thumbnails for click-throughs by including one to three faces in your thumbnails wearing expressions that speak louder than words.

If you don’t have emotive faces in your videos, you can also use thumbnails that convey action to elicit an emotional response, like the SlowMo Guys

the slow mo guys use action shots in their youtube thumbnails

Follow the “rule of thirds” to compose your thumbnail image 

The rule of thirds is a simplified way of achieving the “golden ratio”, which studies have shown minimizes the amount of time it takes for our brains to process an image.

This image composition guideline suggests that you position your point of interest not in the center of the image, but in the first or last third of the frame.

example of the rule of thirds

While it’s more of a guideline than a hard-and-fast rule, designing your thumbnail in this manner lets you draw the viewer’s eye to the most important “message” in your image.

Add text to your thumbnails

According to a 2019 study by Sandvine, YouTube now accounts for 37% of all mobile traffic on the internet. That also means a fair segment of your viewers will see your videos on a mobile device.

This is what the homepage of YouTube looks like to them:

example of what youtube looks like to mobile users

The prominence of your thumbnail relative to the title makes it almost guaranteed that the user’s eyes will be drawn to the thumbnail of your video first. And then, if they find the image compelling enough, will they read the title. 

So why not add some text to the thumbnail to help viewers make up their minds?

The text can be the title of your video or even just a handful of words that are related to its hook. Whatever you choose, if over a third of your viewers are used to “reading” thumbnails on mobile, make sure your own thumbnails can communicate what your video’s about even without the title.

Brand your thumbnails

If you look at the trending tab on Youtube, you’ll notice many of the trending videos have optimized their “first impression” by using the tactics we’ve outlined above.

trending youtube videos using similar tactics

YouTube thumbnails can be very similar aesthetically, and so making it easy for viewers to spot your videos at a glance increases the chances that they’ll be clicked on by people who are already familiar with your content.

If you have a consistent format for your YouTube channel, consider branding your thumbnails to differentiate them from other recommended videos.

Anyone familiar with Great Big Story, for example, will instantly recognize their logo mark on YouTube.

great big story using branded thumbnails on youtube

4. Encourage binge-watching on your channel

Optimizing for click-through rate is one half of the equation. The other half is optimizing for watch time by focusing on video consumption and consistency.

Beyond having a focused premise for your YouTube channel—which is arguably the most important factor—some other ways you can make it easier for viewers to watch more of your content include:

  • Using cards and end cards to manually recommend related videos 

  • Linking to videos in playlists whenever you share so that the next video the user watches is always one of your own

  • Developing a consistent format from the thumbnail to the video itself—if viewers enjoy one of your videos, they should be able to rightly assume they’ll enjoy your other videos.

  • Incorporating a specific call to action or even scenes from other videos to “pitch” viewers directly to consume more content. 

youtube cards to encourage binge watching on youtube

Cards can be used to lead viewers further down the rabbit hole of your YouTube channel.

Algorithms change, but one thing stays the same

The YouTube algorithm has changed a lot over the years, each time leaving creators and brands scrambling, wondering why the methods that they once relied on aren’t working anymore.

But even as the YouTube algorithm evolves, keep in mind that the platform’s goal remains the same: Get more people watching and engaging with more videos on YouTube. And that's not all that different from yours.

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