CRO SKILLS
CRO skills: reviews, research methods and tests that can be trusted
Five skills from a fast page review to a research-first programme, with two on experiment statistics because that is where most CRO goes wrong. 5 skills from 3 libraries, 5 of them running with no key, every one read in full and run once.
CRO skills, read and run
Each card names the library it came from and what it needs. The item page carries the safety review, the real run and the SKILL.md.
- croA page review in seven dimensions ordered by impact: value proposition, headline, CTA hierarchy, scannability, trust, objections, friction. Output in four bands: quick wins, high-impact changes, test ideas, copy alternatives.
- cro-methodologyConversion Rate Experts’ method as a skill: discover why visitors do not convert, inventory the proof you already have, map every objection to a placed counter-objection, and test bold changes with pre-committed rigour.
- conversion-optimizationA resumable seven-phase journey for one leaking flow: find the leak with numbers, learn the reason from customers, fix message, offer, proof and friction in that order, and prove each fix with a pre-committed test.
- experiment-designTwelve considerations for an experiment that answers the question you asked: four-part hypotheses, MDE and power, duration and novelty, what not to test, segments, interactions, ratio metrics, network effects, peeking, pre-commitment, the three result buckets.
- ab-testingDesign an A/B test that can be trusted, then run testing as a programme: hypothesis framework, sample-size table, metrics selection, allocation, the peeking problem, ICE prioritisation and a winners’ playbook.
Together
What these skills do together
Read the page: cro
Seven dimensions in impact order, a fast structured review with quick wins.
Research why: cro-methodology
Objections in the customer’s words, the proof you already have, the O/CO table.
Run the journey: conversion-optimization
One leaking flow through seven phases, resumable, every change a test.
Design the test: experiment-design
Four-part hypothesis, MDE, duration, what not to test, no peeking.
Run the programme: ab-testing
ICE, velocity, a playbook of winners.
Limits
What a skill cannot replace
None of these can see your traffic or your customers. cro-methodology says it plainly: without exit surveys, chat logs and tickets, the research rows score zero. And two of them will tell you that your traffic cannot carry the test you want; that refusal is the most useful thing on this shelf.
Conversion rate optimization guide
The service page for this channel: what we run, how it is measured, and what it costs.
Conversion rate optimization guideMethod
From our guides
The method behind the skills, with the measurements.
- Conversion Rate Optimization: What the Evidence ShowsThe most-shared A/B test result in ecommerce was examined in a KDD paper and did not survive. Here is what it got wrong, what the published success rates are, and how to run a program that compounds.
- A/B testingThe definition is easy and the execution is where tests die. What to split on, how to tell the split worked, and the two checks that come before you read a result.
- Checkout optimizationBaymard’s 70 percent abandonment figure is an average of 50 studies across 19 years. Here is what it can and cannot tell you, and which checkout numbers you can count yourself.
- What is conversion rate optimizationConversion rate optimization in plain language: the definition, the formula, and the one way the number reliably misleads store owners.
- SaaS Landing Pages: What the Galleries Leave OutSearch this term and you get galleries holding more than ten thousand example pages. Across the eight readable ones, no conversion rate appears beside a screenshot. Unbounce's 41,000-page benchmark puts SaaS at a 3.8 percent median, well under the 6.6 percent it reports across all industries.
- What is average order valueAOV is revenue divided by orders. That is an arithmetic mean, and a mean can sit far from the order a store takes most often.
Questions
Questions people ask before installing
Which one for a page that is not converting?
cro for a fast read today; cro-methodology when you can bring customer words; conversion-optimization when you want the whole flow taken through a programme.
Do I need traffic to use them?
The review skills, no. The test skills will compute what your traffic can detect, and for most stores the answer is "bigger changes, fewer tests".
Are the two testing skills redundant?
ab-testing runs the programme; experiment-design is the statistics for one test whose result will decide something expensive. Their sample-size tables disagree with each other; both item pages say by how much.