CRO audit: finding why your site does not convert
A CRO audit is a structured review of your website to find why visitors are not converting and what to fix to improve results. It examines analytics, user behaviour, page design, messaging, forms, and trust signals to identify the biggest barriers to conversion. The output is a prioritised list of issues and recommended fixes, ranked by likely impact.
What a conversion rate optimisation (CRO) audit is, what it examines, what you get from one, and how it helps South African businesses convert more visitors in 2026.
TL;DR: Quick Answer
Basic South African brochure sites: R8,000-R20,000. Custom business websites with SEO and copywriting: R20,000-R50,000. E-commerce: R40,000-R150,000+. The five cost drivers that create the biggest price variation are: scope and number of pages, custom vs template design, professional copywriting, integrations (payment gateways, booking systems, CRM), and on-page SEO included at build stage. Always add 15-25% for hosting, maintenance and content updates in year one.
Key takeaways
- Very cheap quotes (under R5,000) almost always exclude copywriting, SEO, custom design and post-launch support
- Professional copywriting can represent 20-35% of a total website project cost, and is worth it for search visibility
- On-page SEO built into the website at launch costs a fraction of what it costs to retrofit after the site is live
- Hosting, SSL, domain and maintenance add R3,000-R10,000 per year on top of build cost
- E-commerce adds significant cost due to payment gateway integrations, product data, security requirements and checkout UX
- Timeline and client responsiveness directly affect cost: slow feedback rounds extend agency hours
What is a CRO audit?
A CRO audit is a structured investigation into why your website is not converting as well as it could. Rather than guessing or changing things at random, it methodically examines the site to find the real barriers stopping visitors from buying, enquiring, or signing up.
The result is diagnosis, not just opinion. A good audit identifies specific, evidenced problems, a confusing checkout, an unclear value proposition, a form that loses people, and ranks them by likely impact. It gives you a clear, prioritised plan rather than a long list of unranked suggestions, so you fix the things that matter most first.
What does a CRO audit examine?
A thorough audit looks across the elements that influence whether visitors convert. Each can hide a barrier worth fixing.
| Area | What it checks |
|---|---|
| Analytics | Where visitors drop off and on which pages |
| User behaviour | How people actually move and where they stall |
| Design and layout | Clarity, navigation, and visual hierarchy |
| Messaging | Whether the value and offer are clear |
| Forms and checkout | Friction stopping people completing |
| Trust signals | Reviews, proof, and credibility cues |
Together these reveal the specific points where conversions are lost. See our guide to conversion rate optimisation.
What do you get from a CRO audit?
The deliverable is a clear, prioritised report: the issues found, the evidence for each, and the recommended fixes, ranked by likely impact and effort. This lets you tackle the highest-impact, lowest-effort changes first, getting results quickly before moving to bigger work.
A good audit is practical, not academic. It does not just say the site could be better; it says exactly what to change and why, in what order. For many businesses, simply implementing the top few recommendations from an audit produces a meaningful lift in conversions, because they fix problems that were quietly costing customers.
Why use data, not opinion?
The strength of a proper CRO audit is that it relies on evidence rather than taste. Analytics show where visitors actually leave; behaviour data shows where they stall; the audit then explains why. This is far more reliable than guessing or changing things because someone dislikes them.
Opinion-led changes are how businesses waste effort redesigning things that were fine while ignoring the real problems. A data-led audit points you at what is genuinely costing conversions, which is often not what anyone expected. Grounding decisions in evidence is what separates effective CRO from cosmetic tinkering.
What happens after the audit?
An audit is the diagnosis; the value comes from acting on it. After the audit, you implement the recommended fixes, ideally starting with the highest-impact ones, then measure the effect on conversion rate to confirm the improvements work.
From there, conversion optimisation becomes ongoing: test, measure, refine, repeat. The audit gives you the starting plan; continued CRO keeps lifting the rate over time. Some businesses act on an audit themselves; others have it implemented and then run ongoing optimisation. Either way, the audit ensures the work targets what actually matters.
See our guides to conversion rate optimisation and CRO tools.
Frequently asked questions
What is a CRO audit?
A CRO audit is a structured review of your website to find why visitors are not converting and what to fix. It examines analytics, behaviour, design, messaging, forms, and trust signals, and produces a prioritised list of issues and recommended fixes ranked by likely impact.
What does a CRO audit examine?
Analytics (where visitors drop off), user behaviour (where they stall), design and layout (clarity and navigation), messaging (whether value is clear), forms and checkout (friction), and trust signals (reviews and credibility). Together these reveal where conversions are lost.
What do you get from a CRO audit?
A clear, prioritised report: the issues found, the evidence for each, and recommended fixes ranked by impact and effort. This lets you tackle high-impact, low-effort changes first. Often implementing the top few recommendations produces a meaningful lift in conversions.
Why does a CRO audit use data rather than opinion?
Because evidence is more reliable than taste. Analytics show where visitors actually leave and behaviour data shows where they stall, so the audit explains why with proof. Opinion-led changes waste effort on things that were fine while ignoring the real problems costing conversions.
What happens after a CRO audit?
You implement the recommended fixes, starting with the highest-impact ones, then measure the effect on conversion rate. From there, optimisation becomes ongoing: test, measure, refine, repeat. The audit provides the starting plan; continued CRO keeps lifting the rate over time.