How do I QA a reel before posting?
A reel fails differently than a normal video: the frame is vertical, the interface eats your edges, and people decide in about a second. Here is the pre-post QA pass for reels, and three honest ways to run it.
By Thomas, founder of CutScore · Updated June 2026
A reel is not a small video. It is a different animal with its own ways to fail, and most of them are invisible in your editor. You cut it on a wide laptop screen, in a tidy 9:16 box, with the timeline and the preview both behaving themselves. Then it goes onto a phone, and the app drops a username, a caption, a row of buttons and a little tray right on top of your nice clean frame. Suddenly your subtitle is hiding behind a Follow button.
I have shipped reels that looked perfect in the export and embarrassing on the feed, so this is not a hypothetical. The other trap is speed. A normal viewer gives a YouTube video a few seconds. A reel viewer gives you about one, mid-scroll, thumb already moving. If your first frame is a logo, a black flash or a slow breath before you talk, you lost them before the audio even loaded.
So a reel QA is not "watch it once and vibe." It is a short, deliberate pass against vertical-specific targets: framing, safe zones, loudness, the first second, captions, and the export. The targets are boring. That is the point. Boring is checkable.
The reel QA pass, point by point.
Seven checks, each with a target you can actually hit. Run them in this order and you will catch the things that make a reel look thrown-together before anyone else does.
| Check | Target to hit | What it costs you if you skip it |
|---|---|---|
| Aspect ratio | 9:16, full bleed | A letterboxed or stretched reel reads as a recycled horizontal video. |
| Safe zones | text + faces clear | Captions and faces drift under the username, buttons or caption tray. |
| Loudness | ≈ −14 LUFS | Too quiet and the reel feels weak next to the next one in the feed. |
| True peak | ≤ −1 dBTP | Hot peaks crackle and distort after the platform re-encodes the file. |
| Voice vs music | voice on top | Trending audio burying your speech is the classic reel mistake. |
| First second | one reason to stay | Almost all of your drop-off happens before second two. |
| Captions | big, high contrast | Most reels are watched on mute, so unreadable text is a dead reel. |
Running seven checks on every reel adds up if you post daily. CutScore runs all of them in one pass and hands back the fixes, so you spend the time making the next reel instead of inspecting this one.
Four quick passes, in order.
1. Frame and safe zones: where the interface eats your edges
Pull up your reel in the platform's own preview, not just your editor, because that is the only view that shows you the real overlay. Watch the bottom third and the right edge. The username and caption live near the bottom; the like, comment, share and follow buttons live down the right. If your subtitle, your face or a key bit of text drifts into either zone, it gets clipped or buried on the live feed. Keep meaningful content in the middle band. The 9:16 frame is fixed, so this is really about respecting the parts of it the app is going to steal back.
2. Sound: louder than you think, voice over music
Sound is where reels quietly die. Two numbers do most of the work. Loudness, which you want near −14 LUFS so your reel does not feel timid after the last one, and true peak, which you keep at or below −1 dBTP so nothing crackles once the platform squashes your file. Then the reel-specific trap: trending audio. Drop that catchy track in at full volume and it will sit right on top of your voice. Pull the music down four or five decibels until every word is clearly on top. If you cannot understand yourself on a phone speaker, neither can anyone else.
3. The first second: earn the watch before the thumb moves
Watch your opening as if you were scrolling past a stranger's reel. Is there one clear reason to stay in that first frame, or do you start with a logo, a black flash, or a slow inhale before you speak? A reel hook has roughly one second to land, so the most interesting thing you have should be at 0:00, not 0:08. If your best moment is buried later, a piece of it belongs at the very start. This one re-cut moves retention more than any caption font you will fuss over.
4. Captions and export: the parts that decide it on mute
Most reels are watched on silent, so your captions are not a nice-to-have, they are the video. Read them on a phone held at arm's length. If you squint, the font is too small or the contrast is too low; bump the size and add a solid backing. While you are at it, count your filler words, because a reel is short and a dozen "ums" stand out fast. Then export at the platform's preferred resolution and a healthy bitrate, upload, and watch the posted version on the actual app. Platforms re-compress everything, and a reel that looked crisp on your drive can arrive soft.
Here is a real CutScore coaching report for an everyday clip: every check above, scored, with timestamps and the exact fixes.
If you only fix three things.
When you are posting a reel in a hurry, these are the three that separate "looks pro" from "looks rushed." Fix them first.
By eye, by meter, or in one pass.
By eye and ear
Free, and far better than posting blind. The catch is the one we opened with: you have watched this reel forty times, so your ears stopped hearing the quiet audio. Works best after a short break, and always preview inside the app so you see the real overlays. Test against the targets above, not the vibe.
With scopes and meters
Accurate and honest. A loudness meter for the −14 LUFS target, a peak meter, a safe-zone overlay for 9:16. The cost is time: you have to know the numbers, open three tools and read them right for every reel. Great if you enjoy this. If you post daily, it gets old fast.
With a coach in one pass
Hand the file (or a link) to CutScore. It checks loudness, peaks, the 9:16 framing and safe zones, the first second, captions and the export, then gives you a 0 to 100 score with timestamped evidence and the fixes. No scopes to read. See a sample report.
Frequently asked.
Stop guessing before you post.
CutScore runs this whole QA pass for your reel and tells you exactly what to fix, with the evidence to back it up. Join the waitlist for early access.
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