What does an ecommerce CRO agency do?

It raises the share of visitors who buy, and what each order is worth, by fixing the pages and offers between a click and a checkout. Rembanx does this inside the same engine that brings the traffic in, so both are measured together.

What counts as a revenue fix?

A change shipped in under a day through your theme editor, Shopify settings, an existing app or Klaviyo, such as clearer product page copy, a free delivery threshold, a review request or a back-in-stock alert. Anything that needs a developer or a new paid app is quoted first, or handed to your developer.

Do you run A/B tests?

Every product page rewrite is compared over 14 days in GA4, and the version that wins is kept. Split tests run on Flagship, where traffic allows a fair test.

How much does ecommerce CRO cost?

An ongoing conversion programme from a UK agency typically costs £2,000 to £6,000 a month (Axon Garside, August 2026). With Rembanx it is part of every plan: Foundation is £2,450 a month, Growth £3,950 and Flagship £9,950, with no build fee on a 12-month plan, or on a six-month plan signed by 31 January 2027. See full pricing.

How soon will I see changes on my store?

Five fixes are live within 14 days of kickoff. Whether they lift your numbers depends on your store, which is why the baseline is recorded first and reviewed with you at day 90.

Will you redesign my whole Shopify store?

No. Fixes ship through your existing theme, and new landing pages are designed as sections in it, so your store keeps its look and nothing is rebuilt from scratch.

What do I own if I stop?

Everything. The engine, the skills, the playbooks and every page stay in your accounts. Month to month, you can stop with a month's notice. Leave a plan early and the build fee you saved falls due, less a sixth for each month you have paid.

Rembanx
Ecommerce CRO agency

Conversion rate optimisation for Shopify

Ecommerce CRO agency for Shopify brands: more orders from the traffic you have.

Most ecommerce CRO starts with a testing programme. Rembanx starts with the leaks: a revenue audit across conversion, order value and repeat purchase, five fixes live in 14 days, then regular work measured against your own baseline. It is part of every plan, so the visitors SEO brings in land on pages built to sell.

Book a build call Get a free SEO audit

Five revenue fixes live within 14 days of kickoff.

5 weeksfrom kickoff to a live engine in your accounts

14 daysto five revenue fixes on the traffic you already have

+85%Google clicks on the founder's own Shopify store, June to October 2026

What the revenue work coversInventory

01Revenue audit and baselineConversion, order value, repeat purchaseDay 1
02Five fixes liveOn pages buyers already useDay 14
03Homepage, collections, product pages and cartRewritten in your buyers' wordsDays 1 to 30
04Offers, bundles, delivery threshold and upsellsReviewed
05Landing pages designed to convertBy the UI and UX agentEvery new page

Measured againstYour baseline

Reviewed with you at day 90.

Why CRO sits inside the engine

The traffic you already have should earn more.

Conversion rate optimisation for an ecommerce store is the work of turning more of your existing visitors into orders, and more first orders into second ones.

Revenue leak listIllustration

From your Shopify and GA4 dataFive fixes, ranked by orders lost

Product pageLead with the reason buyers say they came backCopy
CartShow how far the basket is from free deliverySettings
Top collectionAnswer the first objection above the productsCopy
Product pageOffer a back-in-stock alert on sold-out sizesApp
After purchaseAsk for the review on day 21Klaviyo

An illustration. Each fix ships in under a day, with your sign-off, and is measured against your baseline at day 90.

Start with what is already there
Before a new visitor is won, the engine fixes the pages your existing visitors already use: the homepage, top collections, product pages and cart.
In your buyers' own words
Copy is rewritten from your reviews, support emails and returns reasons, so each page answers the objections your buyers really have.
Measured, not guessed
Your conversion rate, order value and returning customers are recorded at kickoff, then compared at day 90.

How the engine does CRO

From baseline to five fixes in 14 days.

The growth analyst and copywriter agents work from one revenue audit. This is how a first fortnight usually runs.

Day 1Baseline recordedConversion rate, order value and returning customers, from your Shopify data.
Day 3Leaks rankedDrop-offs by page and device are read in GA4 and ranked by orders lost.
Day 6Fixes draftedEach fix is written in your buyers' words, with your claims rules checked.
Day 9You approveAbout ten minutes of your time. Nothing goes live without it.
Day 14Five fixes liveShipped through your theme, your Shopify settings or Klaviyo.
Day 90MeasuredEach fix is compared with your baseline, and the results rank the next one.

Days 3, 6 and 9 are typical, not fixed. Five fixes live within 14 days of kickoff is one of the four guarantees in every plan.

Run your numbers

What a small lift is worth to you.

Revenue fixes work on traffic you already have, so they can pay back before the SEO does. Put in your monthly revenue and pick a lift to see the scale.

Your monthly revenue

A 5% lift A 10% lift A 20% lift

A lift is a share of your conversion rate today, on the same traffic and order value. A rise from 1.5% to 1.65% is a 10% lift.

Revenue is visitors, times conversion rate, times order value.
Lift one by a tenth and hold the others, and revenue rises by a tenth.
Your day-90 review measures the real change against your baseline.

If your conversion rate rose by 10%

£10,000

more revenue a month, from traffic you already have

Usually suitsGrowth, £3,950 a month

Against the monthly fee2.5 times the fee

Book a build call

An illustration with your numbers, not a promise. Your real change is measured against your baseline at day 90.

CRO in each plan

Same audit, three paces.

Every plan starts with the same revenue audit and the same five fixes. The plans differ in how often the work repeats.

Flagship

£9,950a month

Five fixes live in 14 days
Revenue work every month
A/B tests where traffic allows
Every new page designed to convert

Growth

£3,950a month

Five fixes live in 14 days
Revenue work every month
Every new page designed to convert

Foundation

£2,450a month

Five fixes live in 14 days
Revenue work every quarter
Every new page designed to convert

An ongoing conversion programme from a UK agency typically costs £2,000 to £6,000 a month (Axon Garside, August 2026). Here it is included. See full pricing.

Built on a real store first

The first engine runs on my own Shopify brand

Rembanx is new, so here is the honest version. When Flissie, the Shopify brand I run, lost half its Google traffic in February 2026, I rebuilt its SEO as an engine on Claude. These are its real numbers since.

Women's bamboo boxer shorts. Family run, on Shopify, trading since 2021. Figures compare June 2026, the month before the engine went in, with October 2026.

+85%Google clicks a month, 1,282 to 2,370

+117%search terms ranking in Google's top 10, 2,501 to 5,439

+47%search terms in positions 1 to 3, 1,006 to 1,479

+68%citations in AI answers, 847 to 1,420. In ChatGPT alone, +337%

97%of store visits came from unpaid channels in October 2026: search, direct, email and AI. A year earlier, with Meta ads running, it was 59%

+29%returning customers, January to October, 239 in 2025 to 309 in 2026

Google clicks to flissie.com by week, 4 May to 1 November 2026. Coral bars are weeks with the engine running.

MayJulySeptemberOctober

What comes next. With clicks rising, the engine's work on Flissie has moved to the pages that sell: collection pages, product pages, conversion and email.

Sources: Google Search Console (clicks, search terms by position), Ahrefs (AI citations across ChatGPT, Google AI Overviews and AI Mode, Gemini, Perplexity and Copilot, 30 June against 8 November 2026) and Shopify analytics (visits, orders, returning customers). One store's numbers, not a promise.

Matthew Banks, founder

I am an ecommerce brand owner first. I run Flissie, a family-run Shopify store that has shipped 3,596 orders, so I look at the same Shopify, Search Console and Klaviyo dashboards you do.

I have lived the Meta cycle: ROAS halves overnight, the creatives run out, and a record sales month leaves nothing to pay yourself. Then, in February 2026, our Google traffic halved. So I built the engine on my own store first, and I still run it there every week.

Every plan includes me, not an account manager: strategy calls, a WhatsApp line for ideas and decisions, a monthly growth review on your Shopify numbers and a 90-day plan each quarter.

The Flissie engine, today

Runs on: Claude
Connectors: Shopify, Ahrefs with Search Console, Klaviyo, Canva
Skills: Brand brain, SEO content, digital PR, retention, growth review, blog banners, demand

Questions

What Shopify brands ask an ecommerce CRO agency

What does an ecommerce CRO agency do?: It raises the share of visitors who buy, and what each order is worth, by fixing the pages and offers between a click and a checkout. Rembanx does this inside the same engine that brings the traffic in, so both are measured together.
What counts as a revenue fix?: A change shipped in under a day through your theme editor, Shopify settings, an existing app or Klaviyo, such as clearer product page copy, a free delivery threshold, a review request or a back-in-stock alert. Anything that needs a developer or a new paid app is quoted first, or handed to your developer.
Do you run A/B tests?: Every product page rewrite is compared over 14 days in GA4, and the version that wins is kept. Split tests run on Flagship, where traffic allows a fair test.
How much does ecommerce CRO cost?: An ongoing conversion programme from a UK agency typically costs £2,000 to £6,000 a month (Axon Garside, August 2026). With Rembanx it is part of every plan: Foundation is £2,450 a month, Growth £3,950 and Flagship £9,950, with no build fee on a 12-month plan, or on a six-month plan signed by 31 January 2027. See full pricing.
How soon will I see changes on my store?: Five fixes are live within 14 days of kickoff. Whether they lift your numbers depends on your store, which is why the baseline is recorded first and reviewed with you at day 90.
Will you redesign my whole Shopify store?: No. Fixes ship through your existing theme, and new landing pages are designed as sections in it, so your store keeps its look and nothing is rebuilt from scratch.
What do I own if I stop?: Everything. The engine, the skills, the playbooks and every page stay in your accounts. Month to month, you can stop with a month's notice. Leave a plan early and the build fee you saved falls due, less a sixth for each month you have paid.

One engine, every job.

This is one part of the engine. The same build covers the searches that bring buyers in, the pages that convert them and the emails that bring them back.

01Shopify SEO

Shopify SEO that ends in an order

Collection and product pages, technical fixes, internal links and schema, aimed at the searches buyers make right before they buy.

Shopify SEO agency

02GEO and AEO

AI search optimisation

Get recommended in ChatGPT, Claude, Gemini, Perplexity and Google AI Overviews, with a weekly check on who gets named for your top buying questions.

GEO agency for ecommerce

03Ecommerce SEO

Content that sells, not just ranks

Buying guides, comparisons and gift guides written from your own reviews and published straight to your Shopify blog.

Ecommerce SEO agency

04Revenue

More orders from the traffic you have

Your homepage, top collections, product pages and cart rewritten in your buyers' words, and your offers and repeat purchase flows fixed. Five fixes live in 14 days.

05Research

Messaging in your customers' own words

Reviews, support emails, returns reasons and community threads mined for how your buyers talk, then turned into personas, Chimp OS and a messaging system every page uses.

The thirteen parts

06Growth partner

A founder on WhatsApp, not an account manager

A strategy call with Matthew every week or fortnight, a WhatsApp line for ideas and decisions, a monthly growth review and a 90-day plan each quarter.

Work with Matthew

07Landing pages

Pages designed to convert

A UI and UX agent designs every landing page, collection and guide around the buying decision: what a visitor sees first, the proof beside it and one clear next step.

What is included

08Digital PR and Klaviyo

Links in, second orders out

Gift guides, journalist requests and link gaps pitched in your voice, and Klaviyo flows that turn a first order into a second. Included on Flagship, add-ons from day 90.

Digital PR Klaviyo agency

09Claude SEO

An engine you can see inside

Every skill, playbook and schedule lives in your Claude account, so you can read exactly how the work is done and keep it if you leave.

Claude SEO agency