Ecommerce CRO checklist for brands past the template stage

If the store looks finished but conversion is flat, you don’t need another full redesign first. You need a ecommerce CRO program that diagnoses friction with qualitative and quantitative evidence — then ships the fixes that touch money. Propeller runs CRO inside the commerce system: experience, paid landing quality, and lifecycle in the same backlog — not a freestanding button lab.

Use this checklist when paid is “working” but contribution is soft, when bestsellers under-convert relative to traffic, or when cart abandonment is high despite strong brand creative. Pair it with Klaviyo flows that earn their keep and Meta CAPI and creative systems so acquisition and retention stop leaking into the same holes.

Start where the money moves

Prioritize money paths in this order: product discovery and search, PDP clarity (offer, imagery, social proof, shipping), cart friction, checkout trust and express pay, then mobile performance and Core Web Vitals. Fix the leaks that touch the most sessions and highest AOV before you argue about hero video. A lift on a bestseller beats a dramatic experiment on a long-tail SKU.

• Rank pages by revenue × sessions, not by who shouted in Slack.
• Separate mobile and desktop — most DTC leaks are mobile layout and sticky ATC failures.
• Treat collection discovery as CRO, not only SEO — thin grids hide bestsellers; related: collection SEO architecture.
• Defer homepage theater until PDP and cart pass the rubric below.

PDP rubric checklist

Score each priority PDP. Anything failing two or more rows is a ship-now item, not a “nice experiment.”

• Offer: primary benefit in the first fold; variant logic obvious; price and compare-at honest.
• Imagery: hero sharpness on mobile; lifestyle + detail; zoom that works; no broken media.
• Proof: reviews or UGC visible without scroll theater; claims match ads that drove the click.
• Shipping / returns: promise and cutoff time above the fold on paid landers.
• ATC: sticky on mobile; sold-out states clear; bundles and gifts don’t obscure the primary CTA.
• Trust: payment icons, security, and brand cues without cluttering the buy path.
• Performance: LCP under control on the hero; third-party scripts not choking interaction.

Cart and checkout rubric

• Cart: line items editable; shipping estimate early; upsells that don’t block exit to checkout.
• Express pay: Shop Pay / Apple Pay / PayPal visible where eligible — test as a killer fix, not a vanity A/B.
• Guest path: no forced account creation before purchase.
• Trust copy: returns, delivery windows, and fraud reassurance near pay — not buried in footer legalese.
• Errors: address and payment failures that explain the fix, not a dead end.
• Mobile keyboard and sticky footers: nothing covering the pay button.

Evidence over opinion

Pair UX hypotheses with analytics and session evidence. Score every finding with impact × confidence × ease. Ship obvious technical killers without waiting for a six-week test. A/B test the rest when you have enough traffic for clean reads — roughly when weekly conversions support significance, not when someone is impatient in Slack.

• Instrumentation first: purchase, add-to-cart, begin-checkout events that match Shopify.
• Session sample on money pages before redesign debates.
• One primary metric per test; secondary metrics as guardrails (AOV, refund rate).
• Kill tests that cannot reach significance in a sane window — backlog them as qualitative fixes instead.

Connect CRO to acquisition and retention

Paid traffic into a weak PDP wastes media. Klaviyo flows into a confusing cart create the same leak twice. Treat Meta and Google landing quality as CRO surface area. Treat post-purchase and subscription UX as retention CRO. That is how a Santa Monica ecommerce CRO agency compounds — not by shipping isolated button tests forever.

Collection and search as conversion surfaces

CRO is not only PDP cleverness. Collection grids that bury bestsellers, filters that return empty states, and search that misses synonyms all tax paid and organic traffic before a shopper ever sees your offer. Score top collections with the same ruthlessness you score PDPs: merchandising order, social proof density, empty-state recovery, and mobile filter UX.

• Pin revenue heroes in the first two rows on mobile.
• Show price and key differentiator without opening the PDP when the category is comparison-heavy.
• Recover zero-result search with bestsellers and category links — not a blank apology.
• Align collection SEO intros with conversion copy; architecture guide: Shopify collection SEO.

A four-week CRO operating cadence

Week 1: instrumentation and money-path map. Week 2: rubric scoring and quick-win ships (ATC, express pay, trust). Week 3: first test or qualitative fix on the highest-exposure PDP. Week 4: review revenue impact, kill losers, queue the next two items. Keep Meta and Klaviyo stakeholders in the same standup so landing and flow changes do not fight the experiment calendar.

Document every change with hypothesis, metric, and owner. Propeller’s Santa Monica team runs this cadence inside the commerce backlog — designers, developers, and growth sharing one board — so CRO is not a consultant PDF that dies in Notion.

What “good” looks like after 90 days

You should have a living backlog ranked by revenue exposure, a short list of shipped quick wins with before/after notes, and at least one clean test read on a money PDP or cart element. Analytics should agree between Shopify and your ad platforms closely enough that debates are about offers, not missing purchases. CS should see fewer “where is my order / what is your return policy” tickets caused by buried promises. If all you have is a Figma of new buttons, the program failed the commercial test.

• Instrumentation intact after theme and app changes.
• Top five revenue URLs rescored on the PDP rubric monthly.
• Paid landers in the same backlog as organic PDPs.
• Lifecycle and CRO sharing suppressions and offer rules — see Klaviyo flows.
• No orphan experiments without an owner and a kill date.

Want this run as a program, not a PDF? Book an ecommerce CRO audit or start a project. Bring your top five revenue URLs and last 90 days of funnel data — we’ll score the rubric live.