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Hynek Kraus
CRO & conversion optimisation

The same traffic, more orders.

Paying for traffic that doesn’t turn into orders? Conversion work starts in the data – heatmaps and session recordings show why people leave, and I fix it straight away. No PDF that goes in a drawer.

  • Data decides, not opinion
  • I don’t stop at the report
  • I can see where customers hesitate

No commitment · a written estimate within 24 hours

Where this comes from

I know where a store leaks money because I plugged the holes myself.

For three years I chased one number on my own Shopify store: how many people from the ads actually bought. Conversion by tenths of a percent, because it was my money. I know where orders get lost – I patched those holes myself. Optimisation isn’t theory to me; it’s a craft I learned running a store.

Hynek Kraus, Shopify developer and consultant
Hynek KrausShopify developer and consultant

The same approach goes into every store I build: numbers first, pixels second.

What I do for you

From audit to a change that is live.

I don’t stop at charts. I find where you’re losing people, design the fix and ship the important ones into the store myself.

Conversion funnel audit

I walk the path from landing to order and find the places where people drop out.

  • Funnel analysis in the data (GA4)
  • Where and why people back out of buying
  • Priorities ranked by impact on revenue

Heatmaps and session recordings

Numbers say where people leave. Recordings say why. I set up Microsoft Clarity and watch real sessions.

  • Heatmaps of clicks and scroll depth
  • Recordings of real purchase attempts
  • Clarity uses cookies, so it runs behind consent

A/B tests and hypotheses

I don’t change things on a hunch. I write a hypothesis, test it and let the data decide.

  • Hypothesis → test → result
  • A/B tests where there’s enough traffic
  • The winning version wins, not the loudest opinion

The product page

The most common place a purchase breaks. Structure, content, trust and the path to the cart.

  • Page structure and content
  • Trust elements and removing doubt
  • A clear path to the cart, fewer distractions

Cart and the path to the order

I remove the friction between “add to cart” and “ordered”. On standard plans that means the cart and the path into checkout; deeper checkout work is a Shopify Plus capability.

  • Simplifying the steps in the cart
  • Clear costs, shipping and availability
  • Fewer reasons to leave without ordering

Speed and mobile

Most customers now buy from a phone – and when the site is slow or awkward on mobile, orders walk away.

  • Core Web Vitals and load speed
  • Mobile-first usability
  • Trimming scripts that hold up the load
My approach

Conversion is not guessed. It is measured.

CRO is neither cosmetics nor guessing what might work. This is how I approach it.

Data first, then the change

I set up analytics and behaviour recordings and only then change anything. Every adjustment has a reason in the data.

Not just an audit – the fix as well

A report is half the job. The other half – shipping it into the store in Liquid – I do too. Audit and change in one place.

Prioritised by impact

I don’t chase a hundred small things. I take what actually moves revenue first, not what is most visible.

How it runs

CRO is a loop, not a one-off fix.

Measure, hypothesise, test, evaluate – and again. Each round builds on what the last one taught.

  1. 01
    Measurement & audit

    I set up analytics and Microsoft Clarity, go through the data and find where and why orders are getting lost.

  2. 02
    Hypotheses & prioritising

    I rank the opportunities by impact on revenue and by effort. I start with whatever moves the number most.

  3. 03
    Test or fix

    Where there’s enough traffic, I A/B test the change. Where the problem is obvious, I simply fix it.

  4. 04
    Evaluate & repeat

    What demonstrably worked stays. What didn’t gets thrown away. Then the next round.

A real example

When one page decides the purchase.

At Aniball I didn’t touch the product page until the data showed me where people hesitated and where they left.

CRO analysis & developmentProduct page · EU

Aniball

A Czech brand trusted by more than 130,000 customers, selling across Europe. I didn’t start with design but with the question of where on the page people hesitate and where they back out – and the new section order came out of that. And here’s the difference: the analysis turned straight into shipped code, not into a presentation.

  • CRO analysis of the original product page
  • New section order and priority
  • Design and custom development of the whole page
  • Bundle section with its own logic
What it costs

Optimisation should pay for itself.

The logic is simple: more orders from traffic you’re already paying for. You can start with a one-off audit, or I run continuous optimisation sprints – either way the price is agreed upfront.

What drives the price

  • The size and complexity of the store – how many steps the funnel has
  • Whether you want a one-off audit or continuous optimisation
  • How many changes get shipped straight away (Liquid development)
  • Traffic volume – whether A/B testing makes sense at all

Audit, or continuous

A one-off CRO audit is clearly bounded – I go through the store, find the highest-impact priorities and ship the quickest ones immediately. You don’t leave with a list that goes in a drawer, but with changes already live. I price it fixed upfront; it’s a fraction of a month of ad spend, so it’s a small first step on which you can test me. If you want to keep the gains coming, we run continuous sprints – but that’s a choice, not a condition.

I want higher conversion

An indicative estimate in writing within 24 hours · no commitment

Common questions

Before we start – these come up most often.

Can you guarantee conversion will go up?

No, and anyone promising it is guessing. Conversion is affected by plenty of things outside my control – the product, the price, the season, the quality of the traffic. What I guarantee is the method: I measure, I test and I let the data decide. What demonstrably worked stays; what didn’t gets thrown away. I don’t make changes I can’t defend with a number.

Do we get just an audit, or the changes as well?

Both, and that’s my main difference. Most CRO agencies send you a report and that’s where it ends – the rest is your problem or your developer’s. I write the changes into Liquid myself, so there’s no second supplier standing between “we know what to improve” and “it’s live”.

We don’t have much traffic. Does CRO still make sense?

Yes, but differently. A/B testing needs volume – without it a test will never reach significance and you would be reading noise. With lower traffic I work from recordings, heatmaps and plain usability problems, which are usually obvious enough not to need a test. I’ll tell you honestly which regime you’re in.

Can you optimise the checkout?

Partly, and it’s worth being precise. Deeper changes to the Shopify checkout itself are a Plus capability. On standard plans I work with everything up to it – the product page, the cart, the path into checkout and the thank-you page – which is where most of the losses happen anyway.

What do you measure with?

GA4 for the funnel and Microsoft Clarity for heatmaps and session recordings. Clarity uses cookies, so it runs behind the consent banner – anyone telling you it’s cookieless is wrong. If you already have your own stack, I work with that.

We have an ads agency and someone on data. What do we need you for?

They bring traffic and read numbers. I change the store. Those are different jobs, and the handover between them is where most CRO dies – a recommendation nobody ships. I take the finding and turn it into code.

How long before we see results?

Obvious usability fixes show up within days of shipping. A genuine A/B test needs a few weeks to reach significance, depending on your traffic. Anyone promising a number in a fortnight isn’t measuring.

Will the store look different afterwards?

Partly, and only where there’s a reason. CRO isn’t a redesign – I’m not changing the look for its own sake. If it turns out the store needs a redesign rather than tuning, I’ll say so rather than selling you sprints.

What does CRO cost?

A one-off audit is clearly bounded and priced fixed upfront – I go through the store, rank the problems by impact on revenue and ship the quickest fixes straight away, so you end up with changes live rather than a list. It’s a fraction of a month of ad spend, which makes it a small first step on which you can test me. Continuous sprints are billed monthly by scope, and that’s a choice, not a condition.

Do we have to pay for tools?

Mostly no. Microsoft Clarity for heatmaps and session recordings is free, and so is GA4 for the funnel data. A dedicated A/B testing app costs from tens of euros a month, and it only earns its place once you have the traffic to reach significance – below that I’d be charging you to read noise. I tell you which of them you actually need before anything gets installed.

Do we have to commit for a long time?

No. Most engagements start with a single audit at a fixed price, and what happens next is your decision. If you want the gains to keep coming we run sprints month by month, and you can stop at the end of any of them. I’d rather you stayed because the numbers moved than because of a notice period.

Does CRO work without Shopify Plus?

Almost all of it, yes. The product page, the cart, the path into checkout, speed and mobile – where most orders are actually lost – are open on every plan. What Plus adds is the checkout itself: custom fields, upsells and logic inside those final steps. On a standard plan I work up to the checkout door, which is where most of the money is anyway.

When does CRO not make sense?

When there isn’t enough traffic to tell a change from noise – then the honest answer is to spend the money on getting visitors first. When the store is about to be redesigned or migrated, because the work would be thrown away in a month. And when the problem isn’t the store at all but the price, the product or the quality of the traffic; optimising a page can’t fix any of those, and I’ll say so.

First step

Find out how many orders you are losing.

Write a few lines about the store and the traffic. Within 24 hours you’ll have where I see the biggest opportunities and how I would approach them, in writing. No call, no commitment.

Would rather not fill anything in? Write straight to ahoj@hynekkraus.cz

  1. 01You fill in a short form. It takes two minutes.
  2. 02Within 24 hours I reply with a first written take on it. Free.
  3. 03What happens next is your call. I won’t chase you.