- Reading the numbers as shown, clicked, watched
- What impressions, click-through rate, average view duration and audience retention mean
- Comparing fairly and changing one thing at a time
The short answer
When views are low, split the question into three stages in YouTube Studio analytics: was the video shown, was it clicked, and did people keep watching. Knowing where the numbers thin out tells you whether to look at the title and thumbnail or at the content itself. The numbers do not name the cause. They point to the next place to check.
Three stages and the metrics for each
| Stage | Metrics | What to check |
|---|---|---|
| Shown | Impressions, traffic sources | Where and how often it was shown |
| Clicked | Impressions click-through rate | Whether people played it after seeing it |
| Watched | Average view duration, audience retention | How far people kept watching |
Impressions are the number of times your thumbnail was shown on YouTube. YouTube Help says one is counted when at least 50% of the thumbnail is visible for at least one second. Click-through rate is how often viewers watched after seeing the thumbnail. Audience retention is a report showing which moments held viewers and where they left.
The numbers point to where to look next; they do not prove the cause.
Not every view starts with an impression
Some exposure is not counted as an impression at all: embeds on other sites, the mobile website, end screens and cards, and email or notifications. For a video watched mostly from outside YouTube, impressions and click-through rate show only part of the picture, so check traffic sources too, both inside YouTube and external.
Long-form videos and Shorts are read differently. For long-form videos, the key metrics include impressions, click-through rate and average view duration. Shorts are mostly watched in a feed, so for Shorts you look at things like the share of viewers who kept watching rather than swiping away.
Comparing fairly
YouTube Help explains that click-through rate varies with the type of content, the audience and where the impression appeared. When a video gets many more impressions, for example on the home page, a lower click-through rate is natural. Wait until a video has had enough impressions instead of judging right after upload, and do not compare videos with different traffic sources on click-through rate alone. A high click-through rate with a short average view duration can mean the video did not match what viewers expected.
Audience retention data usually takes one to two days to process.
Change one thing, then review
For example, if retention drops sharply at the start, change only the length of the introduction in your next video. If you change several things at once, you cannot tell which one mattered. YouTube Help also advises against changing titles and thumbnails without good reason.
Video:
Date checked:
Main traffic source:
Impressions click-through rate:
Average view duration:
Retention moment that stood out:
The one thing I will change:
Date changed:
Date to check again:
Result and notes:How to check, and where to look next
In YouTube Studio on a computer, choose Content in the left menu, then open Analytics for the video. Check impressions, click-through rate and traffic sources on the Reach tab, and audience retention on the Engagement tab. Screen names may differ in the app, and in the English interface compared with the Japanese help pages cited here. If a metric is unclear, read the YouTube Help FAQ on impressions and click-through rate.
Checklist
- Did you find which stage, shown, clicked or watched, is thinning out?
- Did you check traffic sources?
- Are you avoiding judgments based on numbers right after upload?
- Are you avoiding click-through comparisons across different traffic sources?
- Did you narrow the next change down to one thing?
One thing to check today
Pick one video and check its traffic sources and audience retention in YouTube Studio.