Technical SEO Services for UK Websites
Fix the foundations of your site. Technical SEO is the plumbing of your website. Get it wrong and nothing else works properly. Get it right and everything else gets easier.
lower bounce rate for sub-2-second sites
of UK searches now happen on mobile
AI crawlers skip JavaScript-heavy sites
What is Technical SEO?
Technical SEO is everything about how your website is built that affects whether Google can find, read, and trust it. It's not the content. It's not the design. It's the engine running underneath. Site speed, mobile setup, URL structure, whether Google can crawl all your pages, whether your site is secure, structured data, sitemaps, redirects.
You can have brilliant content and zero rankings if your site is technically broken. We see this constantly. A small business spends thousands on a new website, the agency hands it over, and six months later they're wondering why traffic hasn't moved. The answer is almost always technical SEO: slow pages, broken links, pages Google can't find, duplicate URLs confusing the search engine, missing schema, no sitemap.
Mobile matters more than ever for technical SEO. Over 60% of UK searches now happen on phones, and Google ranks your site based on the mobile version, not the desktop one. If your site is slow on a phone or fiddly to use, your rankings stay stuck no matter what else you do.
Who Should Choose Technical SEO?
Technical SEO is not for everyone. It is a strong fit if any of these sound like you.
Businesses with a slow website. Speed affects both rankings and conversions. Technical SEO fixes the root causes.
Businesses after a website rebuild or migration. Migrations are where most SEO disasters happen. Technical SEO catches them.
Sites that have suddenly lost rankings. Often a technical issue introduced by a plugin, a theme update, or a developer change.
Ecommerce stores with hundreds or thousands of pages. Technical SEO is non-negotiable at scale.
Anyone serious about AI search visibility. AI crawlers have stricter technical requirements than Google. Without the technical foundations, you won't be cited.
Our Technical SEO Process at Growthcart
We run a full technical SEO audit using the same tools the big agencies use (Screaming Frog, Ahrefs, Google Search Console, PageSpeed Insights), then we fix what we find.
- 1
Full site crawl
Broken links, redirect loops, duplicate content, orphan pages, pages Google can't reach.
- 2
Site speed and Core Web Vitals
Real performance fixes, not just compressing a few images.
- 3
Mobile usability
Touch targets, font sizes, layout shift, anything that hurts the mobile experience.
- 4
Schema markup
LocalBusiness, Service, FAQ, Product, Article, Person. Implemented properly with validation.
- 5
XML sitemap and robots.txt cleanup
Helping Google find the right pages and skip the wrong ones.
- 6
Canonical tags and duplicate URL handling
Critical for ecommerce and large sites.
- 7
HTTPS and security
Not optional. Google flags insecure sites in Chrome.
- 8
Indexing fixes
Making sure all your important pages actually show up in search.
- 9
Render checks for AI crawlers
We make sure GPTBot, ClaudeBot, and PerplexityBot can read your site, not just Googlebot.
Technical SEO FAQs
How fast does my site need to be for technical SEO to be in good shape?
As fast as you can reasonably get it. Google looks for pages loading in under 3 seconds on mobile, with stable layout and quick response to clicks. Speed affects both rankings and conversion rate. Even shaving 1 second off load time often translates into measurable revenue.
Do I need schema markup?
Yes, more than ever. Schema tells Google and AI tools exactly what's on your page. Without it, you're relying on guesses. With it, you're far more likely to appear in featured snippets, AI Overviews, and rich results. It's no longer optional.
My site is on WordPress / Shopify / Wix. Does technical SEO still apply?
Yes. Every platform has its own quirks. Wix and Squarespace have historically had more limitations. Shopify has duplicate URL issues. WordPress depends on the plugins and theme. The principles of technical SEO are the same. The tools change.
Do I need to redo my whole website?
Usually not. Most technical SEO issues can be fixed without a rebuild. If your site is genuinely broken at the foundation (very old code, no mobile version, can't be made fast), we'll tell you and explain the case. We won't sell you a website you don't need.
Related services
Most agencies are still optimising for yesterday's Google. We optimise for wherever your customers actually search now: Google, AI Overviews, ChatGPT, Perplexity, and everywhere in between.
Ready to get started with Technical SEO?
Curious where your site is leaking traffic? Get a free technical SEO snapshot.