Traffic, conversion rate, CRM, acquisition, SEO and performance management: 10 practical checks to identify where your e-commerce performance is being lost before increasing your budgets.
When sales slow down or growth begins to stall, the immediate reaction is often the same: increase Meta Ads or Google Ads budgets, intensify promotions, launch an influencer campaign or look for new traffic sources.
This decision may be relevant. But it should be preceded by one essential question: is your e-commerce operation converting the traffic it already receives effectively?
An e-commerce audit is precisely designed to answer that question. Investing more in an ecosystem that contains several points of friction may simply amplify existing losses: more visitors, more advertising spend, but not necessarily more revenue or profitability.
Before investing an additional €1 in acquisition, here are the 10 checks we recommend to better understand where performance is really being lost.
E-commerce audit: start by distinguishing the symptom from the cause
A falling conversion rate does not automatically mean that your website needs to be redesigned. The cause may lie elsewhere: less qualified traffic, broader advertising campaigns, stock shortages, a less attractive product range, a poorer mobile experience, higher delivery costs, insufficient reassurance or friction at the payment stage.
This is one of the most common mistakes in digital performance analysis: observing one indicator and immediately drawing a conclusion from it.
A KPI tells you that something is happening. It rarely tells you why.
A sound e-commerce performance audit therefore involves cross-checking signals before making a decision. This broader perspective makes it possible to distinguish symptoms from their causes and avoid spending budget on the wrong priority.
1. Analyse traffic quality, not just traffic volume
An increase in traffic is not automatically good news. A website may record 20% more visitors while generating proportionally fewer orders.
You therefore need to analyse where those visits come from and how valuable they are:
- organic traffic and paid traffic;
- new visitors and returning visitors;
- performance by campaign or source;
- mobile and desktop;
- conversion rate by channel;
- revenue generated per session.
The question is not simply: “Is my traffic increasing?”
It becomes: “Are more qualified potential customers visiting my website?”
This distinction is essential before increasing an acquisition budget.
2. Compare your mobile and desktop conversion rates
Your overall e-commerce conversion rate can conceal significant differences between devices. If most of your visitors browse from a smartphone, a poor mobile experience can directly affect a substantial share of your potential revenue.
In particular, check:
- loading speed;
- readability;
- navigation and filters;
- size or variant selection;
- add-to-basket functionality;
- the checkout form;
- the payment methods available.
The aim is not to look for an “ideal” mobile conversion rate that applies to every brand, but to analyse the gap between your own mobile and desktop performance.
When mobile accounts for the majority of traffic, a brand’s primary digital store is now the customer’s smartphone.
3. Audit your product pages as if they were digital sales advisers
A product page should not simply display an item. It should help the visitor make a decision.
Photography, video, materials, fit, sizes, availability, size guide, delivery, returns, reviews and reassurance elements: every piece of information should help remove an objection.
To audit a product page simply, ask yourself this question:
What information would a customer ask a sales adviser in store that my website does not provide?
This is particularly important in fashion, beauty and interiors, where product perception plays a decisive role in conversion.
E-commerce must compensate for the absence of human interaction by providing greater clarity, guidance and reassurance.
4. Identify exactly where your conversion funnel is losing customers
Saying that your conversion rate is 1%, 1.5% or 2% is not enough. You need to understand where the loss occurs.
Break the journey down:
visit → product page → add to basket → basket → checkout → payment → order.
If product pages are viewed frequently but add-to-basket rates remain low, examine the offer, price, availability, merchandising or reassurance elements.
If add-to-basket rates are satisfactory but orders then drop sharply, focus instead on delivery costs, delivery times, checkout or payment.
The conversion rate is an average. Performance loss, however, occurs at a specific stage of the journey.
5. Analyse your average order value and revenue per visit
The conversion rate should never be viewed in isolation. Two websites with the same conversion rate can generate very different commercial outcomes.
Also analyse:
- average order value;
- number of items per order;
- cross-selling;
- bundles or related offers;
- product mix;
- revenue generated per visit or session.
A slight fall in conversion rate can sometimes be offset by an increase in average order value or by selling products that generate a higher margin.
E-commerce performance should therefore be analysed as a system of interdependent indicators, not as a series of isolated KPIs.
6. Calculate your true customer acquisition cost
CPC, CPM and ROAS are useful for managing campaigns. But on their own, they do not measure true profitability.
A Meta or Google campaign may show a satisfactory ROAS while still delivering limited economic contribution once you factor in:
- media spend;
- discounts;
- returns;
- logistics costs;
- the actual margin generated;
- the proportion of genuinely new customers acquired.
The strategic question therefore becomes: “What does it really cost me to acquire a profitable new customer?”
This is where CAC — Customer Acquisition Cost comes in.
A strong advertising ROAS does not automatically mean strong economic profitability.
7. Audit your e-commerce CRM after the first order
Acquisition becomes particularly expensive when a customer has to be repeatedly “bought back” from Meta or Google.
Your e-commerce CRM should therefore extend the value of the investment made at the first purchase. In particular, check:
- the welcome flow;
- abandoned basket flows;
- post-purchase journeys;
- reactivation campaigns;
- customer segmentation;
- second-purchase rate;
- the time between purchases.
The real question is not: “Are we using Klaviyo or another CRM?”
It is: “What happens to a customer after their first order?”
Sustainable growth depends as much on the ability to acquire customers as on the ability to retain them and increase customer value.
8. Measure your dependence on paid traffic through e-commerce SEO
The more an e-commerce business depends exclusively on Meta Ads or Google Ads, the more vulnerable its model becomes to changes in acquisition costs.
An e-commerce SEO audit should, in particular, assess:
- page indexation;
- category structure;
- product pages;
- editorial content;
- branded search queries;
- non-branded search queries;
- visibility for genuinely relevant search intent.
SEO is therefore not simply “free traffic”. Over time, it helps build an acquisition model that is less dependent on constantly paying for audience reach.
Results documented by AMSI CONSEILS also show that a structured strategy can simultaneously improve qualified organic traffic, visibility for strategic search queries and the quality of product pages. View AMSI CONSEILS client results.
9. Check that your merchandising genuinely supports your acquisition strategy
A high-performing advertising campaign cannot sustainably compensate for poor merchandising.
In particular, check:
- the availability of promoted products;
- the sizes actually available;
- the visibility of best-sellers;
- the relevance of advertising landing pages;
- the categories being promoted;
- stock shortages affecting products that generate traffic.
Marketing, acquisition and merchandising must be managed together.
Marketing cannot sustainably sell what merchandising does not make easy to buy.
10. Check that your data genuinely enables decision-making
Shopify provides data. GA4 provides other data. Meta attributes its conversions. Klaviyo measures its contribution. Search Console analyses organic visibility.
The problem is therefore no longer necessarily a lack of information. It is often fragmentation.
An e-commerce performance dashboard only has value if it enables you to:
detect → understand → decide → measure.
The right question is therefore no longer: “Do we have enough data?”
But rather: “Which data do we need to look at in order to make this decision?”
This is precisely the cross-functional approach — conversion, CRM, acquisition, SEO and performance management — that underpins the AMSI CONSEILS Performance Check.
The 15-minute test: do you really understand your performance?
Before even launching an in-depth audit, try to answer the following five questions quickly:
- What is your mobile conversion rate?
- What proportion of your customers place a second order?
- What is your true new-customer CAC?
- At which stage of your funnel do you lose the most visitors?
- What proportion of your revenue comes from existing customers?
If three of these answers require several hours of research, exports or different interpretations depending on who you ask, you may already have identified a first pain point: you do not yet have a sufficiently clear view of your own performance.
After your e-commerce audit, what should you fix first?
Identifying ten issues does not mean opening ten workstreams.
Each issue should be assessed against three criteria:
business impact × urgency × effort required.
A minor aesthetic change can wait if a checkout issue is directly affecting sales. An underused CRM database may offer more potential than a new acquisition campaign. An SEO issue may have less immediate impact but still represent a major structural challenge.
Not every issue needs to be fixed immediately. Performance also means knowing what you choose not to address right now.
This is what distinguishes a simple list of problems from a genuine decision-led performance audit.
Before investing more, optimise what you already have
This e-commerce audit does not, of course, mean that acquisition should stop. In some situations, increasing advertising investment will be exactly the right decision.
But that decision should come after checking that the ecosystem receiving this traffic is capable of efficiently converting that investment into revenue, margin and long-term customers.
The logic can be summarised as follows:
AUDIT → UNDERSTAND → PRIORITISE → ACT → MEASURE
Before systematically looking for a new tool, a new channel or additional budget, start by understanding what your current setup could deliver more effectively.
Because the first reserves of growth are not always found in what a business does not yet have.
They are often found in what it already has, but is not yet using to its full potential.
Performance Check: identify your priority performance losses
AMSI CONSEILS developed Performance Check to assess five key dimensions of a digital ecosystem together: conversion, CRM, acquisition, SEO and performance management.
The objective is not to accumulate recommendations. It is to identify the issues with the greatest impact, prioritise them according to urgency and required effort, then turn the analysis into genuinely actionable decisions.
Discover Performance Check and identify my performance priorities
FAQ — E-commerce audit and digital performance
What is an e-commerce audit?
An e-commerce audit involves analysing the main factors that influence the performance of an online store: traffic, user experience, conversion rate, purchase funnel, acquisition, CRM, SEO, merchandising and the quality of performance management. Its purpose is to identify points of friction and determine which actions should be prioritised.
Which KPIs should you track to measure e-commerce website performance?
The most useful KPIs depend on the business model, but they generally include conversion rate, average order value, revenue per session, add-to-basket rate, checkout abandonment rate, CAC, second-purchase rate, the share of revenue generated through CRM and performance by acquisition channel.
How do you calculate customer acquisition cost?
CAC is the amount invested in acquiring new customers divided by the number of new customers actually acquired over the period being measured. For a genuinely economic view, it should be considered alongside margin, discounts, returns and the customer’s future value.
What is a good e-commerce conversion rate?
There is no single universal conversion rate that is relevant for every business. Conversion levels depend on factors such as the sector, product pricing, seasonality, device, acquisition channel and the proportion of new visitors. It is generally more useful to study the evolution of your own performance and identify where the conversion funnel begins to underperform.
When should you increase your acquisition budget?
Increasing acquisition becomes relevant when the business has sufficiently qualified traffic, a well-controlled conversion journey, an acquisition cost that is compatible with its margin, and enough capability to retain new customers. The objective is therefore not simply to buy more traffic, but to verify that every additional euro can generate sustainable economic value.
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E-commerce audit: 10 checks before investing €1 more in acquisition
E-commerce audit: start by distinguishing the symptom from the cause