CRO Diary · a conversion specialist's working notebook entries reviewed weekly
CRO Diary

More sales from the traffic you already have

Benchmarks

Product Page Teardowns: 10 Real Pages, Scored Line by Line

Merchants assume a slow product page is a design problem, but the real story sits in named settings files like Dawn's main-product.liquid and Horizon's _product-details.liquid, where certain controls simply do not exist yet, no matter how the page looks.

Sep 12, 2026 · latest entry

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Diary: A Beauty Store Audit, From Quiz to Checkout

This entry settles what a quiz result or a checkout button actually promises a beauty shopper, and why most merchants read a theme's marketing page instead of its code and its live Core Web Vitals numbers.

Benchmarks
A smartphone and an open laptop side by side on a wooden desk showing the same online store, printed bar charts underneath

Conversion Rate by Device: The Published Mobile vs Desktop Gap

Mobile carries three quarters of ecommerce traffic and, depending on whose panel you read, converts either 37% worse than desktop or slightly better. Both findings are real. I lay out the published numbers, then add a live CrUX pull that explains part of the contradiction.

Benchmarks
An open worn notebook with a long handwritten checklist beside a laptop showing an online clothing store in warm morning light

How to Increase Conversion Rate on Shopify: The Full Playbook

Every lever in this playbook comes with a published receipt: Baymard's abandonment numbers, the Renault and Vodafone speed studies, the 300 million dollar guest checkout story. No folklore, no 'we tested it on a client', just the evidence and the order I would pull the levers in.

Experiments
A quarterly paper planner open across three monthly pages with handwritten tasks and yellow sticky notes under warm lamp light

The 90-Day CRO Roadmap for a Store With No Budget

No testing tool, no agency, no budget line. Just free instruments, published research and one quarter of disciplined work. This is the exact sequence I would run on any store that has traffic and nothing else.

Notes
329 Across the market's 329 themes the median price is $300 with a $100 to $500 range, so a product page's cost has no fixed relationship to how it performs for real visitors.
, Across the Beauty category on Theme Store, 132 themes are listed as of the check on 2026-09-04, and pristine sits at rank 41 while jade sits at rank 51.
2,800 The two serious panels disagree on the device gap: Littledata's 2,800 mostly small and mid-size Shopify stores show mobile at 1.2% versus desktop at 1.9%, while Dynamic Yield's enterprise panel over the twelve months to June 2026 shows mobile at 2.86% actually edging out desktop at 2.46%.

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