AI for Conversion Optimization: What Works in 2026
Where AI saves real time in CRO, where it is risky, prompts you can copy, what it costs on your own API key and how to check its output before you act.
AI for CRO17 min read
Articles by Joost Bakker
How to Prioritize A/B Test Ideas: PXL vs ICE vs PIE
ICE, PIE and PXL compared on the same 10 ecommerce test ideas, plus the question all three forget: does the page have enough traffic to finish the test?
Running a CRO program14 min read
A/B Test Sample Size Calculator (MDE and Duration)
Free A/B test sample size calculator with a plain-English guide: how many visitors you need, what minimum detectable effect means and how long to run a test.
A/B testing & statistics11 min read
Hotjar Alternatives for Ecommerce (2026): After Contentsquare
New Hotjar accounts are closed. What that means for your shop, plus 9 alternatives compared on price, data limits, surveys, testing and EU privacy.
Tools & comparisons18 min read
Ecommerce Conversion Rate Optimization: A Practical Guide
A practical guide to ecommerce conversion rate optimization for small teams: your numbers, honest benchmarks, research, testing vs fixing, and a 90-day plan.
CRO basics22 min read
How to Analyze Heatmaps for Ecommerce (and What to Fix)
How to read click, scroll and attention heatmaps on shop pages: how much data you need, how to segment, 5 common misreadings and page-type checklists.
Heatmaps, recordings & surveys18 min read
Ecommerce A/B Testing: The Complete Guide
A practical guide to A/B testing for online shops: traffic checks, hypotheses, metrics, sample size, QA, reading results, honest win rates and reporting.
A/B testing & statistics24 min read
GDPR and CRO: Session Recordings, Heatmaps, A/B Tests
Do heatmaps, session recordings and A/B tests need consent in the EU? The CNIL's final replay rules, Germany's TDDDG, Clarity and a checklist.
Privacy & GDPR19 min read