Feature
YouTube Shorts Hook Score Analyzer
A 0–100 score that tells you exactly how well your opening retains viewers — calculated from your real YouTube Analytics data, not predictions.
Good — but improvable
27% of test viewers dropped before your hook resolved. A rewrite targeting the first 8 seconds could move this to 84+ and meaningfully expand your distribution.
What the Hook Score Measures
The hook score measures how well your YouTube Shorts opening retains viewers through the first 30% of the video. On a 30-second Short, that's the first 9 seconds. On a 60-second Short, it's the first 18.
The score is calculated from your real YouTube Analytics retention data — the same data the algorithm uses to decide whether to distribute your Short further. A score of 100 means essentially no viewers dropped during the hook phase. A score of 45 means a significant portion left before you got to the point.
The Score Scale
Hook retains nearly all test viewers. Algorithm distributes broadly.
Strong hook — most viewers commit. Consistent distribution.
Some early drop-off. Distribution is inconsistent.
Significant hook failures. Algorithm limits reach.
Majority drop before the hook resolves. Rarely distributes.
Why the Hook Decides Distribution
The YouTube Shorts algorithm tests every new Short with a small seed audience. The first thing it measures is whether viewers stick past the opening. A weak hook — one that loses too many viewers in the first 30% — signals to the algorithm that the video isn't compelling enough for wider distribution. No amount of good content after the hook can compensate for that early failure.
The hook score isolates this specific variable. It tells you, in precise terms, how much of your algorithmic potential you're capturing — and how much you're leaving on the table.
What ClipHorizon Does With Your Hook Score
Real data, not predictions
Calculated from your actual YouTube Analytics retention curve — not simulated or estimated.
Granular scoring
No rounding to the nearest 10. A 73 is distinct from a 70 or 76 — so you can track incremental improvement.
AI hook rewrites
When your score is below 70, ClipHorizon generates an alternative opening line based on your actual video content.
Trend tracking
See your hook score across all analyzed Shorts on one screen. Identify whether your openings are getting stronger over time.
Timestamp breakdown
See exactly which second caused the biggest drop in your hook phase — not just the aggregate score.
Niche benchmarks
Your score compared to typical hook scores for your content category — not just a raw number in isolation.
Try ClipHorizon Free
Score your YouTube Shorts hook in minutes
Connect your YouTube channel and get hook scores, retention curves, and AI-powered edit suggestions for every Short you've published — free to start with 10 credits.
Get Your Hook Score →