Technical SEO Built for Large Online Stores
Crawlability, indexation, Core Web Vitals, structured data and faceted navigation — the engineering foundations that decide whether search engines can find, understand and rank your product catalog.
When Catalogs Outgrow Their Foundations
An online store with thousands of products is a different technical animal than a brochure site. Every filter, sort option, variant and pagination step multiplies URLs. Templates repeat near-identical content across categories. Speed is judged per template, not per page. Small technical decisions that work fine at 200 products quietly break at 20,000.
Our technical SEO service is designed for that reality. We audit and fix the systems-level issues that determine what search engines can crawl, index and rank — then keep them healthy as your catalog grows. Nothing here rests on guesswork: every recommendation is grounded in how search engines document treating these systems, and every fix is prioritized by commercial impact. For stores that need commercial page optimization on top of technical health, see our E-commerce SEO service.
What Our Technical SEO Covers
Crawlability
We map how crawlers actually move through your store: broken paths, orphan pages, crawl traps and wasted budget. If search engines can’t reach a page efficiently, nothing else on it matters.
Indexability
Index coverage reviewed page type by page type — which categories, products and supporting pages should be in the index, which shouldn’t, and why pages that belong there are missing.
Core Web Vitals & Site Speed
Template-level performance work on the metrics Google actually measures: loading, interactivity and visual stability — prioritized on the templates that drive revenue.
Mobile Usability
Mobile-first indexing means your mobile experience is your experience. We check rendering, tap targets, interstitials, structured data parity and content parity across devices.
Structured Data
Product, offer, review, breadcrumb and organization markup implemented and validated against Google’s search documentation — so your pages are eligible for the rich results they deserve.
Canonicalization
Clear canonical signals for variants, parameters, http/https and www/non-www duplication — consolidating ranking signals on one authoritative URL per page.
Directing Crawlers Through Complex Stores
XML Sitemaps
Segmented, accurate sitemaps for products, categories and supporting content — with clean submission, status monitoring and fast surfacing of new and discontinued products.
Robots.txt
Precise crawl directives: protecting crawl budget from low-value paths without accidentally blocking the pages that earn you revenue — a mistake we see more often than you’d expect.
Redirect Management
Redirect maps for migrations, discontinued products and URL restructures: chains flattened, loops eliminated, and legacy equity preserved instead of evaporating into 404s.
Duplicate Content
Variant pages, boilerplate descriptions, parameter URLs and regional copies resolved through canonicals, differentiation and consolidation — so each page competes with one clear signal.
E-commerce Faceted Navigation
Faceted navigation is the defining technical challenge of online retail. Filters and sort orders can generate millions of URLs from a few thousand products — burning crawl budget on combinations nobody searches for, while diluting the pages that do matter. We define an explicit indexation policy per facet: which combinations earn indexable landing pages (because real search demand exists), which stay crawlable but unindexed, and which are blocked entirely. The result is a store structure that scales with your catalog instead of against it.
Built for Serious Catalogs
This service delivers the most value for stores where scale turns small issues into systemic ones — large product catalogs, multi-category retailers, multi-region setups and replatforming projects where SEO is easy to lose and hard to recover. Whether you need a one-time deep audit or ongoing technical stewardship alongside our E-commerce Content Strategy or E-commerce Link Building work, the engagement is scoped to your engineering reality. More about how we operate on Our Process.
- Stores with large or fast-growing product catalogs
- Replatforming, migrations and URL restructures
- Index bloat, crawl traps or sudden coverage drops
- Core Web Vitals failures on key templates
Technical SEO Pricing
Editable placeholders — final pricing depends on catalog size, platform complexity and scope.
- Full crawlability & indexability audit
- Core Web Vitals & speed review
- Structured data validation
- Prioritized fix list with specifications
- Readout session with your team
- Everything in Technical Audit
- Monthly monitoring & fix cycles
- Faceted navigation policy management
- Redirect & sitemap management
- Developer-ready tickets & QA
- Custom audit & migration playbooks
- International & multi-store handling
- Pre/post-launch monitoring
- Engineering collaboration
- Reporting tailored to your stack
Technical SEO Questions
What does a technical SEO audit include?
A full crawlability and indexability review, Core Web Vitals and speed assessment, mobile usability checks, structured data validation, canonicalization, sitemaps and robots.txt review, redirect analysis and a faceted navigation policy — delivered as a prioritized, developer-ready fix roadmap.
Do you implement the fixes yourselves?
Either way. We can implement directly or produce specified tickets for your developers and QA the result. Ongoing packages include fix cycles so improvements actually ship.
Why is faceted navigation such a big deal for stores?
Because filters and sort options multiply URLs exponentially — often millions from a few thousand products. Without an explicit indexation policy per facet, crawl budget is wasted and ranking signals dilute. It’s usually the highest-impact technical item on a large store.
How does technical SEO relate to your other services?
Technical health is the foundation; it doesn’t replace commercial optimization, content or authority. E-commerce SEO covers page-level commercial optimization, Content Strategy builds topical depth, and Link Building earns external authority. Each is bought separately.
Can you guarantee traffic improvements after a technical fix?
No. Technical SEO removes obstacles — it doesn’t guarantee rankings or traffic. What we do guarantee is thorough analysis, prioritized work and transparent reporting on what was found, fixed and monitored.
How often should a large store audit its technical health?
Continuously for monitoring, comprehensively at least annually — and always around migrations, replatforms or major catalog changes. Ongoing packages keep small regressions from compounding between audits.
Fix the Foundations First
Tell us about your store, platform and catalog size. We’ll come back with an honest view of your technical state — and what it would take to fix it.