Why your online store isn't selling: an audit of problems, mistakes and growth points

Traffic is coming in, sales are not. It is almost never "time for a redesign" — the money leaks in a handful of specific, measurable places. This guide shows which ones, and in what order to fix them.

Who this guide is for

You own an online store, run it as a marketer, or manage it for a client. The store works, orders come in — but the numbers are not what you expected. And when you ask why, you get contradictory answers: your developer says "you need a redesign", the agency says "you need more traffic", and a plugin in the admin says "buy the PRO version".

This guide is for you if:

• Traffic grows but revenue is flat — meaning the problem sits between the visit and the payment, not before it
• You don't understand your own funnel: how many people reached the cart, how many abandoned checkout, and at which step
• The store is slow, but nobody can tell you what that costs in money
• You pay for traffic and suspect you are pouring it into a leaking bucket
• You run WooCommerce, 40 plugins, and every update feels like a lottery

The main reader is the business owner, but each topic includes technical notes for the developer: where exactly to look, what to change, which metrics to track.

The core idea: the problem is rarely where people look for it

After 10+ years working with stores I keep seeing the same gap. The owner describes the problem as "it looks dated" or "we need marketing", and the data says something entirely different: 70% of visitors leave the product page because delivery time is nowhere to be seen; mobile checkout takes 6 seconds to load; the catalogue search returns nothing if the shopper misspells the product name.

That is good news. Specific problems get fixed specifically — in weeks, for a fraction of a redesign budget. The bad news: until they are measured, every decision is a matter of taste, and a €15,000 redesign can leave revenue completely unchanged because it repainted the parts that already worked.

So this guide is not a list of "ecommerce trends". It is an audit that follows the funnel: from the moment someone lands on the site to the moment they buy for the second time.

How to read it: the store funnel, step by step

Each topic is one stage of the funnel and one class of losses. Read them in any order, but the logic is this:

1. Why your store isn't selling — how to turn the problem into numbers and find where it actually breaks
2. Speed and revenue — what every extra second costs and why WooCommerce gets slow
3. The product page — what is missing for someone to commit
4. Cart and checkout — where up to 70% of ready buyers disappear
5. Search and filters — why people with buying intent can't find the product
6. Ecommerce SEO mistakes — duplicates, filters in the index, products without markup
7. Trust and objections — why people won't hand over money even when they like everything
8. Analytics you can trust — why your current numbers are probably lying
9. Retention and LTV — what stores lack from a marketing standpoint: the second, third and tenth purchase
10. Plugins and tech debt — the cost of ownership nobody warned you about

Fix order: what pays back fastest

If you can't fix everything at once, the priority order is almost always this:

Measurement first. While analytics lies, every improvement is faith rather than work. One day spent on proper ecommerce tracking pays for itself by making every later decision something other than a guess.

Then checkout. It is the densest part of the funnel: the people standing there have already chosen a product and taken out a card. According to Baymard Institute, the average cart abandonment rate is around 70%, and most of the reasons have nothing to do with price — they are about how the checkout is built.

Then speed. It affects conversion, search rankings and the cost of a paid click at the same time. It is the one improvement that works across every channel simultaneously.

Then product pages and search. This is where the buying decision is made, and what is usually missing is not beauty but information.

And only then a redesign, if it is still needed at all. Often, after the first four steps, it isn't.

Where the numbers come from

Wherever I quote a percentage or a benchmark, I link to the primary source rather than to a blog retelling it:

• Baymard Institute — years of large-scale ecommerce usability testing with real users: cart, checkout, product pages, search
• web.dev / Core Web Vitals — speed metrics from the Chrome team, including thresholds and case studies
• Google Search Central — documentation on product markup and catalogue indexing
• WooCommerce documentation and WooCommerce Developer Docs — for the platform specifics

Everything else comes from practice: audits, migrations and optimisation work on stores I handled myself. Where something is my observation rather than research, I say so plainly.

What to do after the guide

The guide is self-sufficient: you can run the audit yourself and turn it into a task list for your developer. If you would rather have it done for you, three entry points:

• Conversion optimisation — when the traffic is there and the sales are not
• Website speed optimisation — when the store is slow and Core Web Vitals show it
• WooCommerce and headless — when the store hits the ceiling of its theme and plugins

And if you simply want to know what fixing a store costs, the guide to web product pricing explains how quotes are built and why they differ so wildly.