Shopify CRO Checklist (2026): The 23-Point Pre-Launch Audit

Most Shopify CRO problems are self-inflicted. Stores accumulate apps that slow the site down, ship themes that under-optimize for mobile, neglect review collection, and bury BNPL options at checkout. The checklist below catches these (23 specific items organized by impact tier) so a store can audit itself in 4-8 hours and emerge with a prioritized fix list instead of vague intentions.

The checklist works for pre-launch audits (before a new store goes live), routine quarterly audits (catching drift), and pre-launch checks before major events (Black Friday, new product line, market expansion). The categories are: Foundation, Social Proof, Friction Reducers, and Continuous Optimization. Items within each category are ordered by typical conversion impact.

For the tactical 10-item playbook ranked by impact, see 10 ways to increase Shopify conversion rate. For the diagnostic-first playbook that decides which items to work on first, see how to boost Shopify conversion rate. For the best CRO tools to implement the fixes, see the best Shopify CRO tools for 2026.

Foundation (Items 1-6)

These are the structural items that gate every other optimization. Fix these before working on anything else.

1. Mobile LCP under 2.5 seconds

Check at PageSpeed Insights. Mobile LCP above 4 seconds typically correlates with 50-100% higher bounce rate than under-2.5-second stores. Fix via image compression, app audit, theme cleanup.

• Audit tool: Google PageSpeed Insights
• Pass: Mobile LCP under 2.5s
• Fail: Above 4s. This is your top priority.

2. CLS (cumulative layout shift) under 0.1

Layout shifts during page load disrupt the buying experience and hurt SEO. CLS above 0.25 is the failure threshold.

• Audit tool: PageSpeed Insights
• Pass: CLS under 0.1
• Fail: Above 0.25. Fix size attributes on images/embeds.

3. Mobile thumb-reachable buy button

Above-the-fold buy button reachable with the right thumb on a 6-inch phone, without scrolling. Audit on actual phones, not desktop responsive mode.

• Audit tool: Real device testing
• Pass: Buy button visible without scrolling, reachable with thumb
• Fail: Buy button below the fold on mobile

4. Mobile-optimized review section

Reviews readable on mobile without tiny text. Photos load lazily but visibly. Pagination/filtering works on touch.

• Audit tool: Real device testing
• Pass: Review section is usable and converts on mobile
• Fail: Review section is desktop-scaled-down

5. Theme is clean and current

Themes accumulate cruft over time. Check Shopify theme audit reports, validate against Lighthouse, ensure unused sections are not loading.

• Audit tool: Lighthouse + Shopify theme inspector
• Pass: Theme is on Shopify's current OS 2.0 standard, no unused code loading
• Fail: Legacy theme, heavy unused JavaScript

6. App stack audit

Every app you install adds JavaScript and page weight. Audit the app list; uninstall anything that has not measurably improved revenue per visitor in 60-90 days. See Shopify apps that hurt conversion for the full audit framework.

• Audit tool: GA4 cohort comparison
• Pass: Every active app has measurable RPV contribution
• Fail: 5+ apps installed without ROI measurement

Social Proof (Items 7-13)

After foundation, social proof is the largest conversion lever for most Shopify stores. These items audit whether reviews and UGC are working as hard as they can.

7. Review density per top SKU (20+ reviews per top product)

Products with under 10 reviews under-convert dramatically. Audit your top-10 SKUs by revenue; they should have 20+ reviews each.

• Audit tool: Review app dashboard
• Pass: Top SKUs have 20+ reviews
• Fail: Top SKUs have under 10 reviews

8. Average review rating between 4.2 and 4.5

A perfect 5.0 looks suspicious; below 4.0 hurts conversion. The sweet spot is 4.2-4.5 (Northwestern Spiegel Research).

• Audit tool: Review app dashboard
• Pass: Average rating 4.2-4.5
• Fail: Below 4.0 or perfect 5.0

9. Photo reviews on top SKUs

Photo reviews are viewed 2x more often than text-only reviews (PowerReviews). Top SKUs should have 5+ photo reviews each.

• Audit tool: Review app dashboard
• Pass: Top SKUs have 5+ photo reviews
• Fail: Photos absent or rare

10. Star ratings visible above the fold on PDPs

Star summary near product title lifts add-to-cart 17% over below-the-fold (Baymard Institute).

• Audit tool: PDP visual inspection
• Pass: Star summary visible above the fold
• Fail: Stars below the fold or invisible

11. AggregateRating schema valid

Schema enables rich snippets in Google Shopping and search. Without it, you forfeit organic CTR lift.

• Audit tool: Schema markup validator + our review rich snippet checker
• Pass: AggregateRating and Review schema valid
• Fail: Missing or invalid schema

12. Video reviews on visual-product categories

For beauty, fashion, home: video reviews drive 73% higher purchase intent (Wyzowl). Top SKUs in visual categories should have video.

• Audit tool: Review app dashboard
• Pass: Top SKUs in visual categories have video reviews
• Fail: Video absent or rare

13. UGC gallery present and optimized

For visual-product categories, dedicated UGC galleries (Instagram-style customer photos) lift conversion materially.

• Audit tool: PDP visual inspection
• Pass: UGC gallery present with current, on-brand customer content
• Fail: Galleries absent or showing stale/off-brand content

Friction Reducers (Items 14-19)

Items that remove specific blockers between visit and purchase.

14. BNPL option visible at checkout

Shop Pay Installments + at least one regional BNPL (Klarna, Afterpay, Tabby, etc.). Visibility matters: show installment pricing on PDPs, not just at checkout.

• Audit tool: Checkout walk-through
• Pass: BNPL visible and selectable
• Fail: Missing or buried

15. Guest checkout enabled

Forced account creation drives 24% checkout abandonment (Baymard Institute).

• Audit tool: Settings > Checkout
• Pass: Guest checkout enabled
• Fail: Account required

16. Shipping cost visible early

Shoppers who learn shipping cost late abandon more. Calculate-shipping-in-cart UX hurts vs known-cost-upfront UX.

• Audit tool: Cart UX walk-through
• Pass: Shipping cost visible in cart or earlier
• Fail: Shipping cost revealed only at checkout

17. Trust signals near the buy button

Security badge, return policy, support contact. 3-4 high-credibility signals near the buy button beat 10 mixed-quality badges across the page.

• Audit tool: PDP visual inspection
• Pass: 3-4 trust signals visible near buy button
• Fail: No trust signals or distant placement

18. Return policy clear and accessible

Return-policy link in footer is not enough. Add a one-line callout near the buy button ("30-day returns").

• Audit tool: PDP visual inspection
• Pass: Return policy summary near buy button
• Fail: Only available via footer link

19. Mobile-friendly payment methods

Apple Pay, Google Pay, Shop Pay: show them at checkout. Mobile checkout completion is 30-40% lower than desktop without these.

• Audit tool: Mobile checkout walk-through
• Pass: Apple Pay/Google Pay/Shop Pay visible at checkout
• Fail: Card-only checkout on mobile

Continuous Optimization (Items 20-23)

Once foundation, social proof, and friction reducers are solid, continuous optimization captures the variance.

20. Continuous display optimization on review/UGC sections

Most stores ship static review widgets and never test arrangement. The 20-40% additional conversion lift from optimized arrangement of the same content is the largest underutilized lever on PDPs.

• Audit tool: Review widget configuration check
• Pass: Eevy AI or equivalent continuous-optimization tool running
• Fail: Static review widget with default settings

21. Personalization for returning visitors

Returning visitors convert 4-5x better than new. Personalization (recently-viewed callouts, cart recovery, segment-specific offers) extends the gap.

• Audit tool: Klaviyo or Justuno setup check
• Pass: Returning-visitor personalization configured
• Fail: Same experience for new and returning

22. Predictive email/SMS send-time

Klaviyo predictive features (send time, lifetime value, churn risk) lift email/SMS revenue measurably without requiring manual segmentation.

• Audit tool: Klaviyo predictive features panel
• Pass: Predictive features enabled and used in flows
• Fail: Default rules-based segmentation only

23. Analytics and diagnostics installed

Microsoft Clarity (free) for heatmaps and session recordings. GA4 + Shopify Analytics for funnel measurement. Without diagnostics, you cannot prioritize CRO work.

• Audit tool: Tools list check
• Pass: Clarity + GA4 + Shopify Analytics all active
• Fail: Missing one or more

How to Use This Checklist

The checklist is a snapshot tool. The first run identifies gaps; subsequent runs catch drift. Most stores find 8-15 items needing attention on the first audit, with 3-5 being high-priority.

Prioritization order:

• Items 1-2 (page speed) before anything else
• Items 7-10 (review foundations) next, as they compound
• Items 14-17 (friction reducers) for checkout-bottlenecked stores
• Items 20-23 (continuous optimization) once foundation is solid

The full audit takes 4-8 hours of focused work using free tools (Microsoft Clarity, PageSpeed Insights, Shopify Analytics). The fixes typically take 4-12 weeks depending on team capacity. Most stores can move from below-median (1.4% conversion) to top-quartile (2.5-4%) within 6-12 months by working this checklist methodically.

For continuous-optimization tooling specifically (the item that compounds for years rather than weeks), Eevy AI runs a genetic algorithm against revenue per visitor data on existing review and UGC content. Permanent free plan up to 25K monthly visitors, then $99/mo (Starter) with a 14-day free trial; the 20-40% conversion lift from optimized arrangement is the highest-leverage line item on this entire checklist.