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ViralGrader

This is a sample report for a 24-second talking-head video, so you can see everything a scan gives you.

Brain attention mapAttention Control: 81 out of 100. Focus Drift: 34 out of 100 (higher is worse). Visual Cortex: 77 out of 100. Auditory Cortex: 69 out of 100. Language Network: 58 out of 100. Emotional Response: 63 out of 100.
  • Attention Control81
  • Visual Cortex77
  • Auditory Cortex69
  • Language Network58
  • Emotional Response63
  • Focus Drift34risk

Attention map inspired by neuroscience research — not a brain scan.

Sample report · morning-routine-v2.mp4 · 24.0s

Good — a few tweaks away

Strong open, soft middle

Your first second grabs attention with movement and your face on screen. Viewers are most likely to drift between 9s and 14s, where the shot holds still and nothing new appears.

Hook score

0

first 3 seconds

Hold estimate

0%

watch to the end (est.)

Drift risk

0

higher is worse

A prediction to guide your edit, not a guarantee of views.

5 fixes · most impact first

What to fix before you post

  1. Break up the still stretch at 9–14s

    High impact

    Add a punch-in zoom, a B-roll cutaway or a text callout around 9s. Nothing changes on screen for almost 5 seconds.

    Pacing

  2. Add a text hook in the first second

    High impact

    Put the promise of the video on screen in big text — e.g. “The 3-second rule nobody follows”. Many people decide with the sound off.

    Hook

  3. Caption the whole video

    Medium impact

    Captions only cover 18% of the runtime. Burned-in captions keep muted viewers watching and make every word land.

    Captions & speech

  4. Tighten the two silent pauses

    Medium impact

    Cut the gaps at 10.4s and 17.8s, or fill them with a beat. Silence is where thumbs start moving.

    Audio

  5. End on the payoff, then loop

    Polish

    The last 2 seconds lose energy. Finish on the reveal and cut so the ending flows back into the first frame.

    Pacing

Already working

  • Strong opening — motion, a face, fast speech in the first seconds
  • Good pacing: a new shot every 4.8s
  • Clear, well-levelled audio

Exact time · frame number · what to change

Frame-by-frame edit plan

9 timestamped edits · 30 fps · 720 frames

Sample report — scan your own video to step through it frame by frame.

0:00.00 · f0

0:00.000:24.00

The mechanical edits, done for you · on your device

One-click fix

24.0s → 22.6s · 1.4s tighter

Sample report — scan your own video to make a fixed version.

First 3 seconds · AI editor

Your hook

You, mid-frame in a bright kitchen, reaching for a mug — clear subject and natural motion.

“Nobody tells you this about mornings.”

Good curiosity gap and a face in frame 0, but the line arrives after a breath and nothing on screen tells muted viewers what the video promises.

Try this text hook

“The 3-second rule nobody follows”

Try this opening line

“This 3-second rule fixed my mornings — and nobody talks about it.”

Every signal we measured

Deep report

Retention estimate

44% still watching at the end · bars show attention pull per second

0255075100Fix at 9.0s: Break up the still stretch at 9–14sFix at 0.0s: Add a text hook in the first secondFix at 10.4s: Tighten the two silent pausesFix at 22.0s: End on the payoff, then loop0.0s6.0s12.0s18.0s24.0s
Estimated from what your video does second by second. Real retention depends on audience and platform.

AI editor's judgement

From the frames and transcript, compared with strong short-form in your niche (50 = typical).

HookStopping power of the first 2 seconds
74
ClarityInstantly clear what it's about
82
ValuePayoff for the viewer's time
71
EmotionThe feeling it triggers
58
PacingKeeps moving, no drag
54
PayoffSatisfying end or reason to rewatch
66
ShareabilityWould someone send it to a friend
61

Attention Control

81
Motion in first 3s
LivelyGood
Face on screen
0.2sGood
Text hook
None foundWeak
First words
0.6sGood

Visual Cortex

77
Cuts per 10s
2.1Good
Average shot
4.8sGood
Motion
LivelyGood
Contrast
31%Good
Brightness
46%Good
Sharpness
SharpGood

Auditory Cortex

69
Loudness
-19 dBFSGood
Silence
14%OK
Opening energy
+1 dB vs avgGood
Speech · music
71% · 8%Good

Language Network

58
Captions on screen
18%Weak
Speaking pace
2.8 words/sGood

Emotional Response

63
Close-up time
42%OK
Expression changes
3OK
Audio peaks per 10s
1.3Good

Focus Drift

34 risk
Longest static shot
4.6sWeak
Dead air
1.2sOK
Silent gaps
2OK

What we heard

  1. Nobody tells you this about mornings.
  2. Um, there's a three-second rule, and once you see it you can't unsee it.
  3. The second your alarm goes off, you count down from three and you stand up. No snooze, no scrolling.
  4. I've done it for thirty days and this is the difference.

Measured with: faces opencv-haar · text heuristic · speech whisper · writer llm · frames_reviewed 36 · signals v1.0-rules

Score your own video