Guide
Every dollar a broken ad spends is a dollar you can't get back. The cheapest optimization you'll ever run is the one before the campaign goes live. Here are the nine checks worth running first.
"Let the data decide" is good advice for things you can't know in advance and expensive advice for things you can. A cropped video, a dead pixel, or a landing page that loads the wrong offer doesn't need a test — it needs a glance. The checklist exists to separate the avoidable failures (fix them now) from the genuine unknowns (test those live). Run it on every ad, every time.
1. The hook earns the next three seconds. Watch your first three seconds with the sound off and ask whether you'd stop. If you're not sure, that's a no — see how to write a hook that stops the scroll. 2. The middle doesn't sag. Map where attention is likely to drop and whether it's still alive when your offer appears. 3. The offer is unmistakable. A stranger should know what you sell and why to act now within one viewing. 4. The creative is screened, not just eyeballed. Your own taste is biased toward your own work; a neutral score against a benchmark is harder to fool.
5. Aspect ratio and safe zones fit the placement. Vertical 9:16 for Reels, Shorts, and TikTok; keep captions and CTAs clear of the UI overlays that cover the bottom third. 6. Captions are baked in and sound-on still works. A large share of feed viewing is muted, but plenty of placements autoplay sound — the ad has to work both ways. 7. The thumbnail or first frame does its job. The still that represents your ad is the very first attention test — the same problem as the best thumbnail for video ads, one frame early.
8. The landing page keeps the ad's promise. If the ad sells a result, the page's hero should repeat it in the first scroll — message mismatch is one of the quietest causes of wasted spend. 9. Pixels, events, and links fire. Click the ad link yourself, confirm the conversion event registers, and verify UTM parameters are intact before you trust a single performance number. A campaign that spends without tracking isn't a test — it's a donation.
Checks 1 through 4 are where pre-testing earns its keep. Instead of relying on opinion, upload your creative and get a predicted attention curve and hook strength score before launch — a screen that complements your live A/B tests rather than replacing them. The full rationale is in ad pre-testing, and if budget is the constraint, the small-budget testing framework shows how to sequence it all on limited spend.
Upload your ad and see its predicted hook strength and attention curve in minutes — first analysis free, no card required.
Pre-Test Your Ad