What does a technical SEO agency do?

It finds and fixes what stops search engines crawling, reading and ranking a site: duplicate addresses, wasted crawling, slow pages, missing structured data and the setup for each country you sell to. Rembanx does this for Shopify stores, as one part of an SEO engine built in your own accounts.

What technical SEO problems do Shopify stores have?

The audit checks six: themes that link to a second address for each product, filtered and sorted collection pages, slow themes, code left behind by removed apps, gaps in product schema and, if you sell abroad, how Markets is set up.

Will you change my theme?

Only where it fixes an SEO problem, such as product links, schema or speed, and only with your sign-off. Every theme change is shown to you before it goes live.

What do you need from me?

Shopify and a Claude account, plus Search Console, GA4 and Ahrefs, all in your own name and connected during the build. We help set up anything you do not have.

Do you handle site migrations?

No. Rembanx does not run platform migrations or rebuild themes. The technical work is done on your live Shopify store.

How much does a technical SEO agency cost?

Typical UK SEO retainers run from £1,000 to £3,500 a month (whito.co.uk, May and June 2026). Rembanx does not sell technical SEO on its own: it comes with 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.

Is the free audit a technical audit?

No. The free AI SEO audit shows 20 searches your store could own and the three biggest leaks costing you orders. The full technical audit is part of the build.

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
Technical SEO agency

Technical SEO services for Shopify and ecommerce

Technical SEO agency for Shopify stores: fixed by week four, checked every week.

Rembanx is a technical SEO agency for Shopify and ecommerce brands. We audit your store for the problems Shopify stores share, fix them in weeks 2 to 4 of your build, then check the store every week, so anything a theme update or a new app breaks is found at the next check. It comes with every plan, as one part of an SEO engine built in your own accounts.

Book a build call Get a free SEO audit

Technical SEO is part of every plan, not a separate retainer.

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 technical work coversInventory

01Duplicate product URLsTheme links pointed at the main product URLWeeks 2 to 4
02Filtered and sorted pagesrobots.txt.liquid edited where they waste crawlingWeeks 2 to 4
03Theme speedChecked against Core Web VitalsWeeks 2 to 4
04Leftover app codeFound and removed, with your sign-offWeeks 2 to 4
05Schema and MarketsProducts, prices, stock, reviews and each countryWeeks 2 to 4
06AI crawler access and llms.txtIn the build

Then checkedEvery week

Every theme change is shown to you before it goes live.

Why technical SEO comes first

A page Google cannot read cannot rank.

Technical SEO is the work that lets search engines crawl, read and trust your store, so the pages and copy you invest in get the chance to rank.

Technical auditIllustration

From Search Console, Ahrefs and your themeSix checks, ranked by the pages at stake

Product linksCollection pages link to a second address for each productTheme
FiltersFiltered and sorted pages crawled more often than the collectionsrobots.txt
SpeedOversized images on the best-selling collectionTheme
AppsA removed app still loads its script on every pageTheme
SchemaReviews missing from the product markupSchema
MarketsIrish buyers shown the UK pageMarkets

An illustration of the audit output. Each fix is ranked by what the pages it touches earn, and every theme change is shown to you first.

Shopify does the basics, not the rest
Shopify generates your sitemap, robots.txt and canonical tags. Which address your theme links to, what your filters create and what your apps leave behind are up to you.
The biggest fix goes first
Each problem is ranked by the pages it touches and what those pages earn, so a slow best-selling collection is fixed before a page nobody visits.
Checked every week after
A theme update or a new app can bring a problem back. The engine keeps checking every week, through your own Search Console and Ahrefs.

How the engine does technical SEO

Audit, fix, then keep watching.

The technical work runs inside your five-week build, then carries on every week.

Week 1Connect and readSearch Console, Ahrefs, GA4 and your Shopify theme are connected and read while your engine is specified.
Weeks 2 to 4Audit the storeThe six checks run across your product, collection and filtered pages, your theme and your apps.
Weeks 2 to 4Rank the fixesEach problem is ranked by the pages it touches and what those pages earn.
Weeks 2 to 4You approveEvery theme change is shown to you before it goes live.
Every weekWatch for new problemsThe store is checked every week, so a problem a theme update or a new app brings is found at the next check.
Day 90Delivered, or walk awayTechnical SEO is on the 90-day list. If it is not delivered, you can leave owing nothing more.

Nobody can promise rankings from technical fixes alone. What the engine controls is whether anything on your store is holding your pages back.

What Shopify does for you

Shopify handles the basics. The rest is up to you.

Every Shopify store starts with the same foundations. The problems come from themes, apps and how a catalogue is set up.

Built into every Shopify store

What Shopify handles

A sitemap.xml, generated for you
A default robots.txt
Canonical tags that point duplicate addresses at the main page
An SSL certificate on every page

The source for each is in our Shopify SEO checklist.

Fixed by the engine in weeks 2 to 4

What it leaves to you

Which product address your theme links to
Which filtered and sorted pages Google spends its time on
Oversized images and heavy scripts on the pages buyers land on
Code left behind by apps you removed
Gaps in your product, price, stock and review markup
Each country seeing its own pages, if you sell abroad with Markets

Every theme change is shown to you before it goes live.

Technical SEO in each plan

Done for you at every pace.

Technical SEO is one of the thirteen parts of the engine, so it comes with every plan.

Flagship

£9,950a month

Technical SEO done for you, in every market you sell to
Fixed in weeks 2 to 4, then checked every week
18 new pages a month

Growth

£3,950a month

Technical SEO done for you
Fixed in weeks 2 to 4, then checked every week
6 new pages a month

Foundation

£2,450a month

Technical SEO done for you
Fixed in weeks 2 to 4, then checked every week
3 new pages a month

Technical SEO is on the 90-day list in every plan: miss it and you can leave owing nothing more. 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 a technical SEO agency

What does a technical SEO agency do?: It finds and fixes what stops search engines crawling, reading and ranking a site: duplicate addresses, wasted crawling, slow pages, missing structured data and the setup for each country you sell to. Rembanx does this for Shopify stores, as one part of an SEO engine built in your own accounts.
What technical SEO problems do Shopify stores have?: The audit checks six: themes that link to a second address for each product, filtered and sorted collection pages, slow themes, code left behind by removed apps, gaps in product schema and, if you sell abroad, how Markets is set up.
Is Shopify bad for technical SEO?: No. Shopify generates your sitemap, robots.txt, canonical tags and SSL certificate. The problems come from themes, apps and how a catalogue is set up. Our Shopify SEO checklist lists what Shopify handles and what it leaves to you, with sources.
Will you change my theme?: Only where it fixes an SEO problem, such as product links, schema or speed, and only with your sign-off. Every theme change is shown to you before it goes live.
What do you need from me?: Shopify and a Claude account, plus Search Console, GA4 and Ahrefs, all in your own name and connected during the build. We help set up anything you do not have.
Do you handle site migrations?: No. Rembanx does not run platform migrations or rebuild themes. The technical work is done on your live Shopify store.
How much does a technical SEO agency cost?: Typical UK SEO retainers run from £1,000 to £3,500 a month (whito.co.uk, May and June 2026). Rembanx does not sell technical SEO on its own: it comes with 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.
Is the free audit a technical audit?: No. The free AI SEO audit shows 20 searches your store could own and the three biggest leaks costing you orders. The full technical audit is part of the build.
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.

Ecommerce CRO agency

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

Book a build call

Stop renting growth. Own the engine.

Thirty minutes with Matthew. Bring your Shopify numbers and what you have tried. You leave with a spec for your engine, whether or not we build it. Two new partners a month, with builds starting on the first Monday. The £0 build fee offer ends 31 January 2027.