Although it’s an investment, a CRO expert can quickly identify your path to increased enquiries from your website and marketing.
Most websites attract visitors who never enquire, never buy, and never come back. The gap between traffic and results is where a great deal of marketing spend disappears. If your site is underperforming despite reasonable visitor numbers, here is everything you need to know about finding and working with a conversion rate optimisation specialist.
A conversion rate optimisation (CRO) specialist focuses on one thing: getting more of your existing website visitors to take the action you want them to take. That might be submitting an enquiry form, requesting a quote, booking a call, or completing a purchase. The role sits at the intersection of data analysis, user behaviour, and commercial thinking.
If you want a broader introduction to the subject itself, my complete guide to website conversion optimisation explains how CRO works, what affects conversion rates and where businesses should start when trying to turn more visitors into customers or enquiries.
Ultimately, a CRO specialist is focused on a business gaining more revenue from their website.
Day to day, a CRO specialist spends time reviewing analytics data, identifying where visitors drop off, forming hypotheses about why that is happening, and designing tests to find out. They work across landing pages, forms, calls to action, page layout, and copy.
Much of the work is investigative before it is creative. A typical week might involve reviewing session recordings, analysing funnel data, writing test briefs, and reviewing results from live experiments.
SEO brings visitors to the site. UX (User Experience) shapes how the site feels to use.
CRO asks whether those visitors are converting, and what needs to change if they are not.
The three disciplines overlap but serve different purposes. A conversion rate optimisation consultant will often flag UX issues as part of their work, but their primary lens is always performance, not design for its own sake.
Every piece of CRO work should connect back to a measurable business outcome. Not page views, not time on site, not bounce rate in isolation.
The question a CRO specialist keeps returning to is: did more people do the thing that matters? That focus on outcomes is what separates this role from general web improvement work.
The most common problems a conversion rate optimisation expert is brought in to address include:
These are not obscure problems. Across more than 6,300 websites I have analysed over 25 years, those problems are extremely common.
Running A/B tests is not the same as doing CRO well. The difference lies in the quality of thinking that sits behind the tests. A capable conversion rate optimisation consultant brings together analytical rigour, commercial awareness, and an understanding of how people behave online. Evaluating someone on technical skills alone will not tell you whether they can move the numbers that matter.
A strong CRO specialist reads data with scepticism as well as curiosity. They know that a metric can look fine in aggregate while hiding a serious problem at segment level. They are comfortable working with analytics platforms, interpreting statistical outputs, and distinguishing between a meaningful signal and noise. Gut instinct has a place, but it should always be tested rather than acted on directly.
Good CRO work starts with a clear hypothesis: if we change this, we expect this outcome, because of this reason.
Without that structure, testing becomes guesswork dressed up as process. Statistical literacy matters because it prevents teams from calling a winner too early or misreading inconclusive results.
A conversion rate optimisation expert who cannot explain confidence intervals or sample size requirements is likely to produce unreliable conclusions.
CRO specialists do not need to be designers or copywriters, but they need to understand both well enough to brief them effectively. Recognising that a page is visually cluttered, that a headline is not addressing the visitor’s concern, or that a call to action is buried below the fold, these are practical judgements that shape test quality.
Communication skills matter too. Findings need to be explained clearly to stakeholders who may not share the same technical background. In my own work I find it’s much more productive to record explanatory videos or have online calls, than it is to produce lengthy reports that are rarely read.
This is where many technically capable CRO practitioners fall short. Improving conversion rate is only valuable if the conversions themselves are worth having.
A specialist with commercial judgement will ask whether the leads being generated are the right leads, whether the enquiry volume is translating into revenue, and whether optimising one part of the funnel is creating problems elsewhere. Conversion rate optimisation solutions that improve volume but damage lead quality are not a success.
Understanding how CRO work is structured helps you assess what you are commissioning and what to expect in return. The process follows a recognisable shape: understand the current situation, form a view on what to test, run experiments, and act on what the data shows.
The first stage is diagnostic. A conversion rate optimisation consultant will review your analytics data, examine how visitors move through the site, identify pages with high exit rates, and look for patterns in where conversions are and are not happening.
This stage often includes reviewing form completion rates, traffic source performance, and device-level behaviour. The output is a prioritised picture of where the biggest opportunities lie.
Testing is the engine of CRO, but it is not the only tool. Heatmaps (for example, the free Microsoft Clarity) show where visitors click, scroll, and stop engaging. Session recordings (also within Microsoft Clarity) reveal behaviour that analytics data cannot capture.
User surveys and on-page feedback tools add qualitative context.
A/B testing then allows specific changes to be measured against a control, so that decisions are based on evidence rather than preference.
In the first 30-60 days of working with a conversion optimisation consultant or agency, you should expect:
What you should not expect is a dramatic uplift in the first few weeks, although I do typically find that there are often some easy quick wins (for example, making an adjustment to product pages that result in higher conversions).
Overall though, research and setup take time, and tests need sufficient traffic to produce reliable results.
This is a practical decision, and the right answer depends on your traffic volumes, budget, internal capability, and how much ongoing support you need. Each option has a different cost profile, a different working relationship, and a different scope of what gets covered.
An in-house CRO specialist is embedded in your team, with full context on your business and the ability to work across multiple projects continuously.
A freelance conversion optimisation consultant typically works with several clients at once, bringing external perspective and focused expertise, usually on a project or retainer basis. This is what forms the vast majority of website success work I undertake with clients.
A conversion optimisation company offers a team of specialists, which can mean broader capability but also higher cost and less direct access to senior thinking.
A freelance or independent conversion rate optimisation consultant is often the right fit when:
A CRO consultant is usually not a web developer, a copywriter, a paid media manager, or a brand strategist. They will identify what needs to change and why, but implementation typically sits with your internal team or other suppliers.
Scope mismatches happen when businesses expect a consultant to deliver end-to-end execution.
Clarifying who owns implementation before the engagement starts saves a significant amount of friction later.
However, my experience over 25 years and thousands of websites makes me ‘not normal’ in that it does allow me to expand upon what a CRO consultant will generally supply, including Google Ads setup & management, content creation, and SEO recommendations/implementation.
Timing matters. Bringing in CRO support too early, before you have meaningful traffic data, limits what can be tested and measured. Bringing it in too late means leaving conversion losses unaddressed while continuing to spend on traffic acquisition.
The clearest signal is a gap between traffic and results. If your site is receiving a reasonable volume of visitors but generating fewer enquiries or sales than the numbers suggest it should, that gap is worth investigating. Other indicators include:
If that describes your situation, it is worth first understanding some of the common reasons why a website gets traffic but does not convert, from poor traffic quality and unclear messaging to weak calls to action, trust issues and usability problems.
I often have conversations with new clients that, after I’ve initially reviewed their website visitors and marketing data, shows that their conversion problems have been there for quite some time and they could have been gaining more enquiries long before they decided to contact me.
There is no single qualification that defines a conversion rate optimisation expert. What matters more is evidence of structured thinking, a track record of measurable results, and the ability to explain their process clearly. When assessing candidates or suppliers, look for:
Building in-house gives you continuity, deep business context, and the ability to run a sustained programme of testing over time. The trade-off is cost and the time it takes to hire well.
External support, whether a consultant or a conversion optimisation company, can be deployed faster and brings cross-sector experience. For most small to mid-sized UK businesses, starting with external support and building internal capability over time is a more practical path than trying to hire a senior specialist from the outset.
Cost is a reasonable concern, and it is worth being direct about what drives it. CRO is not a commodity service. The price reflects the depth of analysis, the complexity of the site, and the level of ongoing involvement required.
The main factors that influence what you pay include the size and complexity of your website, your traffic volumes, the number of tests you want to run concurrently, and whether you need strategy only or strategy plus implementation support.
As a broad guide, freelance conversion rate experts in the UK typically charge between £500 and £1,500 per day, with monthly retainers ranging from approximately £500 to £2,000 or more depending on scope.
Agency engagements tend to start higher.
For my clients, there are a range of different options …
Live one-hour Zoom call each month undertaking live analysis on the website and marketing analytics, discussing the data live with the client.
Cost: £160 + VAT
Pro: low cost.
Con: very gradual progress.
Detailed analysis of website conversion strengths and weaknesses, including comparisons to up to 10 named competitors. Outcome is a full report detailing the step by step actions required, focusing initially on quick wins that enable costs to be quickly recouped.
Cost: £660 – £1,600 (varies based on complexity of the client website/marketing).
Pro: full and fast analysis, including quick win opportunities and longer-term actions to implement.
Con: cost (92% of the assessments I’ve done since 2024 have ranged from £720 to £1,380).
This may or may not require the initial CRO assessment audit (often not).
Ongoing work with me via a combination of my analysis/reporting and online calls to discuss. Can include help with content writing, SEO, Google Ads.
Cost: £360 – £740 (varies based on complexity of the client website/marketing).
Pro: finds the quick wins to cover costs, working towards profitability asap.
Con: slower than the initial CRO assessment audit, focusing on the immediately obvious priorities to start with.
Low traffic is the most common constraint for small businesses considering CRO.
A/B testing requires sufficient visitor numbers to produce statistically reliable results, and sites with fewer than high hundreds monthly visitors may not reach significance within a reasonable timeframe.
That does not mean CRO is off the table. It means the approach shifts toward qualitative methods, expert review, and structured changes based on established principles rather than live experimentation. The investment required is also lower, and the improvements can still be meaningful.
Ecommerce sites have a natural advantage in CRO: the conversion event is clear, the data is rich, and the revenue impact of improvements is directly measurable.
Key areas of focus include product page performance, basket abandonment, checkout friction, and the relationship between traffic source and purchase intent.
A conversion optimisation expert working with an ecommerce business will typically prioritise the highest-value pages first, since even a modest improvement to a high-traffic product page can produce a measurable return quickly.
For a wider look at the opportunities beyond CRO alone, I have also covered how to increase ecommerce sales, including traffic acquisition, product pages, average order value, repeat purchasing and conversion.
The primary metric is conversion rate, but it should never be read in isolation. A rising conversion rate alongside falling average order value or lead quality is not a success. Metrics worth tracking alongside conversion rate include:
Return on investment from CRO is calculated by comparing the incremental revenue or lead value generated against the cost of the programme. Realistic expectations, clear baseline data, and consistent measurement are what make that calculation meaningful.
A conversion rate optimisation specialist does not normally fix websites. They fix the gap between what a website attracts and what it delivers.
The most important steps are recognising when that gap exists, understanding what kind of support fits your situation, and setting clear expectations about what good looks like before any work begins.
Whether you are considering a freelance conversion rate optimisation consultant or a larger agency engagement, the principles are the same: start with data, test with purpose, and measure what matters.
If your site is generating traffic but not enough of the right results, get in touch for a free non-sales-pitch call and I will help you understand where the problem lies.