A 27-Point CRO Checklist for Product Pages That Actually Converts

Most CRO advice is a listicle of button colours. Product-page conversion is decided by a handful of information and trust mechanics; here is the checklist we run in audits, grouped by the question the shopper is silently asking.

"Is this the thing I want?" — clarity

1. Title states what it is in plain nouns before brand poetry.
2. First image shows the product honestly at usable resolution; zoom works with fingers.
3. Image set covers: in context, scale reference, detail texture, back/underside, what's in the box.
4. Video where motion is the product (apparel drape, tools in use) — measured lifts of 5–15% in those categories.
5. Variant selectors show availability per variant before the click, not after.
6. Specifications in a scannable table, units localised, no PDF archaeology.
7. Size guidance with real measurements and fit feedback ("runs small — 68% size up") harvested from returns reasons.

"What does it really cost?" — price honesty

8. Full price visible near the buy button — including per-unit math for multipacks.
9. Delivery cost and threshold stated on the page, not discovered at checkout; surprise shipping remains the top abandonment reason in every study that asks.
10. Klarna-style instalment messaging where your demographic uses it; absent where it cheapens.
11. Strike-through pricing honest and lawful (EU Omnibus: the reference price is the lowest of the last 30 days — enforcement is real now).

"Can I trust this?" — proof

12. Review count and average near the title; full reviews reachable in one tap.
13. Reviews with photos surfaced first; sort by recent available.
14. Negative reviews visible — pages scrubbed to 5.0 convert worse than 4.6 with texture; buyers are not new here.
15. Returns policy summarised in one line near the button ("60-day free returns") with the full policy one tap deep.
16. Trust logos only where they mean something (actual certifications, actual payment marks) — decorative badges measurably do nothing.

"Will it arrive when I need it?" — delivery

17. A real promise: "Order by 16:00, arrives Thursday" beats "2–4 business days" — and beats it more in December.
18. Stock truth on the page ("3 left" only when true; fake scarcity is an Omnibus violation in the EU and shoppers smell it anyway).
19. Click-and-collect or locker options where your market uses them (DACH, Nordics especially).

"Let me buy it" — mechanics

20. Buy button visible without scrolling on mobile; sticky add-to-cart after scroll.
21. Add-to-cart gives unmistakable feedback and a clear next step; mini-cart beats redirect for multi-item shops.
22. Express payments (Apple Pay, PayPal, Shop Pay) on the product page for single-item-purchase categories — measured double-digit lifts on mobile.
23. Guest checkout preserved; account creation offered after payment, when saying yes costs nothing.
24. Forms: autofill-friendly, address lookup, no fields you cannot justify in a meeting.

Hygiene that gates everything

25. LCP under 2.5s on mid-tier mobile — every 500ms is measurable money.
26. No layout shift stealing the first tap (CLS near zero); nothing converts worse than a mis-tapped accordion.
27. Accessible by default — labels, contrast, focus states. WCAG 2.2 is law-adjacent in both your markets and correlates with conversion because clarity is clarity.

Run the list, fix in order of effort-to-evidence, and A/B what is arguable. Most pages fail 8–12 of these; fixing them is rarely glamorous and reliably pays for the quarter. When the page passes and conversion still lags, the problem is upstream — offer, price or traffic quality — and no checklist fixes those.