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Ecommerce SEO agency UK

A catalogue is not a content problem, it is an engineering one. Most stores we see have thousands of products that search engines never index, because filter combinations eat the crawl budget before the products are reached. We fix that, and then make the pages worth finding.

Free estimateNo obligation

Get a free catalogue audit

Tell us the store, the platform and roughly how many products. We will check how much of it is actually indexed and what is stopping the rest.

Takes under a minute. We never share your details.

  • Free consultation
  • No commitment
  • NDA on request

Prefer to talk? Book a free 30-minute call →

  • Catalogue indexation and crawl budget as the first priority
  • Shopify, WooCommerce, Magento and custom builds
  • UK-registered company, Companies House 16718403
1,000+
Clients served
2020
Building since
4.6
Rated on Clutch

2020

Building since

1,000+

Clients served

UK

Registered company

4.6/5

Rated on Clutch

Quick answer

Why most ecommerce SEO fails before it starts

On a large store, the binding constraint is almost never content quality. It is crawl budget. Faceted navigation generates a combinatorial explosion of URLs, colour by size by price by brand by sort order, and a crawler spends its allowance on those instead of on your products. The symptom is a Search Console report showing far more discovered URLs than indexed ones.

The fix is structural rather than editorial. Decide which facet combinations are allowed to exist as indexable pages, because a few genuinely are valuable landing pages, and make the rest uncrawlable rather than merely canonicalised. Canonical tags are a hint, not an instruction, and a crawler will still spend budget fetching a page before reading the hint.

Category architecture is the second lever and the one most often skipped. Category pages, not product pages, are what rank for the terms with volume. A store with excellent product pages and thin, templated categories is competing for the long tail while giving away the head.

Product structured data is the third. Price, availability, GTIN, brand and reviews, agreeing with what the page shows and with what the Shopping feed says. Where those three disagree, you lose on all of them. This is also what decides whether an AI assistant can include your products in a comparison answer, which is increasingly where the shortlist is made.

What we do

What ecommerce SEO covers

Eight areas. Large stores usually need the first three before anything else is worth doing.

01

Crawl budget and faceted navigation

Deciding which facet combinations deserve to be indexable pages and making the rest genuinely uncrawlable, rather than relying on canonical hints that still cost a fetch.

02

Category architecture

Building the category and subcategory structure that holds the terms with real volume, with pages that say something rather than listing products under a heading.

03

Product structured data

Price, availability, GTIN, brand and reviews, consistent with the visible page and with the Shopping feed. Disagreement between the three is a common and invisible suppressor.

04

Product page content

Specifications, compatibility, sizing and the questions buyers actually ask, written once properly rather than generated into near-duplicates that search engines treat as thin.

05

AI shopping visibility

Making your products available to assistants composing comparison answers. This depends on entity clarity and structured data rather than on links, which makes it unusually reachable.

06

Out-of-stock and discontinued

A deliberate policy rather than whatever the platform does by default: what stays, what redirects, what returns gone. Done badly this leaks equity quietly for years.

07

Speed and Core Web Vitals

Category and product templates are where ecommerce performance is won or lost. We fix at the cause: image delivery, script weight and layout shift from late-loading elements.

08

Migrations and replatforms

URL mapping product by product, verified after launch. Ecommerce migrations are where the largest single traffic losses we see happen, and they are avoidable.

Why this matters

Forty thousand URLs, three thousand indexed

The products exist, the pages exist, and the crawler never arrives. No amount of content investment fixes a page that is never fetched.

What we usually find

  • Filter and sort URLs consuming most of the crawl budget
  • Category pages that are a template with a different heading
  • Product schema disagreeing with the page or the Shopping feed
  • Out-of-stock products returning soft 404s or disappearing entirely
  • No product of yours appearing in AI comparison answers

What we change

  • Crawl budget spent on products and real category pages
  • Categories written to win the terms that actually have volume
  • Schema consistent across page, feed and structured data
  • A deliberate policy for out-of-stock and discontinued lines
  • Products that assistants can include when comparing options

How much of your catalogue is actually in the index?

For most stores the honest answer is a fraction of it. The audit tells you the number and what is consuming the rest.

In practice

What we are usually called in for

Six recurring situations across UK stores.

Indexation

Most of the catalogue missing from the index

Discovered but not indexed, at scale. Nearly always faceted navigation generating more URLs than the site has crawl allowance for, combined with weak internal linking to deep products.

Crawl spent on things that can sell

Categories

Winning the long tail, losing the head

Strong product pages and thin categories, so the store ranks for exact product names and nothing broader. Category work is usually the largest single organic gain available.

Visible for the terms with volume

Migration

A replatform that halved organic traffic

Redirects mapped by pattern, which handled the tidy majority and dropped everything irregular, including the highest-value legacy URLs. We rebuild from the real URL list and verify after launch.

Equity carried across

Duplication

One product, forty URLs

Variants, filters, sorts and tracking parameters multiplying every product. Fixed structurally so crawlers stop generating the space rather than being asked to ignore it afterwards.

One canonical URL per product

AI comparisons

Absent from assistant shortlists

A buyer asks an assistant to compare options and gets marketplaces and review sites. Usually because the store's own product data is not machine-readable and nothing corroborates it.

Products included in comparisons

Stock churn

Equity leaking through discontinued lines

Products removed outright, or left returning soft 404s. Over several seasons this quietly removes a large part of a store's accumulated authority with nobody noticing.

A policy that preserves what was earned

How we work

Audit, structure, content, measure

Structure before content, because content on an unindexed page earns nothing.

  1. 1. Audit

    Crawl the store, compare against what is actually indexed, and work out where the crawl budget goes. Free, in writing, and yours to keep.

  2. 2. Structure

    Fix faceted navigation, category architecture, internal linking and the out-of-stock policy, so the crawler reaches what matters and the right pages hold the right terms.

  3. 3. Content and data

    Category and product content written where it changes the outcome, product schema made consistent with the page and the feed, and the entity work that lets assistants include you.

  4. 4. Measure

    Indexed coverage, organic revenue and AI comparison visibility, reported monthly in writing with what moved and what did not.

Clear scope · Regular demos · Full handover

Honest fit

When ecommerce SEO is the right spend

Catalogue scale is what makes this work pay. A small clean store may need very little of it.

A good fit when…

  • You have thousands of products and poor indexed coverage
  • Category pages are thin or templated
  • You are about to replatform, or recently did and lost traffic
  • Your products never appear in AI comparison answers
  • You want the fixes implemented in the platform

Not the right fit when…

  • You sell twenty products and they are all indexed
  • Your margins only work on paid traffic
  • The catalogue changes faster than any structure could hold
  • You want guaranteed rankings for head retail terms

Who we are

A UK company doing the work in-house

SpiderHunts Technologies Ltd is registered at Companies House under number 16718403, with a London office and an engineering team in Lahore.

2020

Building since

1,000+

Clients served

4.6/5

Rated on Clutch

FiverrVerified review
Shahrukh did an excellent job creating a fully customized portal for my car auction business. Everything was delivered on time. I’m very satisfied and would highly recommend him for any custom web development project.
Michael JonUnited Kingdom
ClutchVerified review
I was impressed by their ability to deliver unparalleled quality at an extremely fast pace and for great value.
Angelos BougasManaging Director, Ocley Group
FiverrVerified review
Shahrukh was a pleasure to work with - responsive, polite and with a wonderful attention to detail.
swn_y_morUnited Kingdom

FAQ

Ecommerce SEO — FAQs

What UK retailers ask before commissioning catalogue work.

Still have a question?

Ask us directly — a senior engineer will get back to you.

Ask about your project

Why are most of our products not indexed?

Usually crawl budget. Faceted navigation creates far more URLs than the site has crawl allowance for, so the crawler spends its visits on filter combinations and never reaches the products. Weak internal linking to deep pages and near-duplicate templates compound it. The fix is structural, not editorial.

Will canonical tags solve our duplicate URLs?

Only partly. A canonical is a hint, not an instruction, and the crawler still has to fetch the page before it reads the hint, which means the crawl budget has already been spent. On large stores you need the duplicate space to be uncrawlable, not merely deduplicated after the fact.

Should we invest in product pages or category pages?

Categories, in most cases, and it is the more commonly skipped answer. Category pages hold the terms with real search volume, while product pages win exact product names. Stores with excellent products and thin categories are competing for the long tail and giving away the head.

We are replatforming. When should you be involved?

Before launch, ideally while URL structure is still being decided. The largest traffic losses we see come from redirects mapped by pattern, which works for the tidy majority and silently drops the irregular URLs, which are often the valuable legacy ones. Involving us afterwards means recovering rather than preventing.

What should we do with out-of-stock products?

It depends on whether the product is coming back. Temporarily out of stock should stay and say so; permanently discontinued should usually redirect to the nearest equivalent or the parent category; neither should quietly vanish or return a soft 404. Over several seasons the default behaviour of most platforms leaks a lot of accumulated authority.

Can you get our products into AI shopping comparisons?

We can make it possible and much more likely, but no one can guarantee it. It depends on your product data being machine-readable and corroborated elsewhere, which is work we can do. Whether a given assistant includes you on a given day is the assistant's decision.

Which platforms do you work with?

Shopify, WooCommerce, Magento, BigCommerce and custom builds. Because we are a software company we can usually implement in the platform rather than hand over a list, which matters for faceted navigation, where the fix is often in the template rather than in a setting.

Do you do the paid side as well?

Yes. Google Shopping and Google Ads are covered on their own pages, and for most retailers the feed work and the organic product data work overlap heavily, so doing both together avoids one undoing the other.

What does it cost?

It depends on the size of the site and the scope of the work, so we do not publish a fixed price: the honest range is wide. The first conversation and the audit are free, and the quote follows them, in pounds, once we both know what the work actually is.

Who do we contract with?

SpiderHunts Technologies Ltd, registered at Companies House under number 16718403, with an office at 182-184 High Street N, Office 14607, London E6 2JA. You are invoiced in pounds. The engineering team works from Lahore, which we state openly rather than implying a room full of desks in London.

Start here

Find out how much of your catalogue is working

Tell us the store and the platform. We will crawl it, compare against what is actually indexed, work out where the crawl budget is going and tell you what it would take to fix. Free, in writing, and yours to keep.

  1. You tell us what you needTwo minutes on the form, or a message on WhatsApp.
  2. A senior engineer reviews itAnd comes back with questions, a realistic range and an honest view on fit.
  3. Free 30-minute scoping callWe talk through scope, options and a realistic estimate — with no obligation.
Free estimateNo obligation

Request your free catalogue audit

Tell us a little about the project and we will come back with a realistic range.

Takes under a minute. We never share your details.

  • Free consultation
  • No commitment
  • NDA on request

Prefer to talk? Book a free 30-minute call →