Technical SEO

Fix the foundations that hold your site back

We audit, diagnose, and fix every technical issue that prevents Google from crawling, understanding, and ranking your website — from Core Web Vitals and structured data to JavaScript rendering and server configuration.

What Is Technical SEO?

**Technical SEO** is the practice of ensuring your website is built and configured in a way that search engines can efficiently crawl, index, and understand every page. It covers site speed, mobile-first design, Core Web Vitals, structured data markup, JavaScript rendering, canonical tags, redirects, sitemaps, and server response times. Without a solid technical foundation, even the best content cannot reach its full ranking potential — search engines simply cannot find or properly evaluate what you have published.

53% of mobile visitors leave a page that takes longer than 3 seconds to load — technical performance directly affects how many people your site reaches.

What We Deliver

Core Web Vitals

We identify and fix the exact issues pulling down your speed scores — image optimisation, layout shifts, interaction delays, and server response times — so your pages pass Google's performance thresholds.

  • LCP Optimisation
  • CLS Fixes
  • INP Improvements
  • Image Compression
  • Font Loading
  • Render Blocking

Crawl & Index Optimisation

We map how search engines move through your site, fix crawl traps and blocked resources, and ensure every page you want indexed is discoverable — while keeping the pages you do not want out of search results.

  • Crawl Budget Analysis
  • Robots.txt Audit
  • Sitemap Management
  • Canonical Tags
  • Redirect Chains
  • Index Coverage

Structured Data & Schema

We implement the structured data markup that enables rich results in search — star ratings, FAQs, product details, breadcrumbs, and more — giving your pages a visible advantage over plain search listings.

  • JSON-LD Implementation
  • FAQ Schema
  • Product Schema
  • LocalBusiness Schema
  • BreadcrumbList
  • Rich Result Testing

JavaScript SEO

We audit how search engines handle your JavaScript-rendered content, fix crawl and rendering issues, and ensure dynamically generated pages are fully indexable without relying on client-side rendering alone.

  • Rendering Audit
  • SSR / SSG Review
  • Dynamic Rendering
  • Hydration Issues
  • JS Bundle Analysis
  • Crawl Simulation

Server & Hosting Optimisation

We review your hosting environment, CDN configuration, HTTP headers, and server response times — making the infrastructure-level changes that improve both speed and crawl efficiency at scale.

  • TTFB Reduction
  • CDN Configuration
  • HTTP/2 & HTTP/3
  • Caching Strategy
  • Security Headers
  • Server Response
Technical SEO audit dashboard showing Core Web Vitals and crawl coverage

Why Invest in Technical SEO?

Unlock the Value of Your ContentGreat content that search engines cannot properly crawl will never rank. Technical SEO removes the invisible barriers that stop your pages from reaching their full potential.
Improve Page Experience for Real UsersCore Web Vitals improvements do not just satisfy Google's algorithms — they make your site faster and more pleasant to use, reducing bounce rates and increasing engagement.
Scale Without BreakingAs your site grows — more pages, more content, more traffic — a sound technical foundation ensures that growth does not introduce crawling, indexing, or performance problems.
Gain Rich Result VisibilityStructured data markup unlocks enhanced search listings with star ratings, FAQs, and product information — making your results stand out visually and earn more clicks.

How We Work

01

Technical Audit

We run a comprehensive crawl of your site alongside manual analysis — examining Core Web Vitals scores, crawl coverage, indexing status, structured data validity, and JavaScript rendering behaviour.

  • Full site crawl & coverage report
  • Core Web Vitals field & lab data
  • Structured data validation
  • JavaScript rendering audit
02

Prioritised Fix Plan

We triage every issue by its impact on rankings and user experience, delivering a prioritised roadmap that addresses the most damaging problems first — so you see improvements as quickly as possible.

  • Impact-ranked issue list
  • Effort vs. impact matrix
  • Developer brief per fix
  • Quick-win identification
03

Implementation

We fix the issues ourselves or work directly with your development team — providing precise specifications, reviewing pull requests, and verifying every fix in a staging environment before it goes live.

  • Direct implementation or dev support
  • Staging verification
  • Cross-browser & device testing
  • Post-deploy confirmation
04

Monitoring & Iteration

Technical health requires ongoing attention. We monitor your site's crawl coverage, Core Web Vitals, and indexing status continuously — catching regressions before they affect your rankings.

  • Monthly technical health reports
  • Core Web Vitals monitoring
  • Index coverage alerts
  • Regression detection
Technical SEO implementation process showing structured data and server optimisation

Industries We Serve

SaaS & TechnologyWe handle the JavaScript rendering, dynamic content, and complex app architectures that make SaaS sites technically challenging for search engines to crawl and index.
E-CommerceWe fix the crawl budget waste, duplicate content, and slow page loads that are endemic to large product catalogues — helping every product page reach its ranking potential.
Publishing & MediaWe optimise news sites and content publishers for fast indexing, article schema, and the Core Web Vitals thresholds that affect how quickly new content appears in search results.
Financial ServicesWe ensure regulated financial websites meet both Google's technical requirements and the security standards their compliance teams demand — without one undermining the other.
HealthcareWe build technically sound foundations for healthcare sites that need fast, accessible, and properly structured pages to compete in one of the most scrutinised categories in search.
EnterpriseWe manage technical SEO across large, multi-team enterprise sites — coordinating with development, product, and infrastructure teams to implement changes at scale.

Technical SEO vs. Content-Only SEO

FactorTechnical SEOContent-Only SEO
CrawlabilityEnsures every page is found and indexed correctlyDoes not address whether pages are reachable
SpeedDirectly improves load times and Core Web Vitals scoresNo impact on page performance
ScaleMakes large sites work efficiently as they growPerformance degrades as content volume increases
Rich ResultsEnables star ratings, FAQs, and enhanced search listingsNot available without structured data markup
Long-term ROIFixes compound — each resolved issue benefits all future contentResults limited by whatever technical ceiling exists

Frequently Asked Questions

How much does technical SEO cost?

Technical SEO engagements typically start from £800-£2,500 for an initial audit and fix plan, with ongoing monthly retainers from £500-£1,500 depending on site complexity and the volume of issues to address. We offer a free site audit so you can see exactly what is holding your site back before committing to any work.

How long does technical SEO take to show results?

Some fixes — like resolving redirect chains, fixing broken pages, or correcting canonical errors — show results within days to weeks as search engines recrawl your site. Core Web Vitals improvements and structured data enhancements can influence rankings within 4-8 weeks. A full technical overhaul typically produces measurable ranking gains over 2-4 months.

What are Core Web Vitals and why do they matter?

Core Web Vitals are Google's three page experience metrics: how long it takes for the main content to become visible, whether page elements shift unexpectedly as the page loads, and how quickly the page responds to user interactions. Google uses these as ranking signals — pages that perform poorly on these measures are at a disadvantage in search results.

What is crawl budget and should I be worried about it?

Crawl budget is the number of pages Googlebot will crawl on your site within a given timeframe. For small sites this rarely matters, but for large sites with thousands of pages — particularly e-commerce and publishing — wasted crawl budget means new or updated content gets indexed more slowly. We audit how efficiently your budget is being spent and fix the waste.

How does JavaScript affect search engine crawling?

Search engines can execute JavaScript, but they do so in a second wave of processing that can delay indexing by days or weeks. If your site relies heavily on JavaScript to render content, metadata, or links, those elements may not be seen by search engines at all — or may be indexed much later than static content. We audit and fix these rendering gaps.

What are canonical tags and when do I need them?

Canonical tags tell search engines which version of a URL is the 'correct' one when the same or similar content exists at multiple URLs. They are essential for e-commerce sites with product variants, sites with URL parameters, and any site that can be accessed via both www and non-www versions. Incorrect canonicals can split your page's ranking signals across multiple URLs.

How do redirects affect search rankings?

A single 301 redirect passes nearly all of a page's ranking signals to the destination URL — this is fine and expected. The problem is redirect chains (A → B → C) and redirect loops, which waste crawl budget, slow page load times, and dilute the signal passed through each hop. We audit all redirects and flatten chains to single hops.

What is structured data and how does it improve search visibility?

Structured data is code added to your pages that explicitly tells search engines what type of content you have — a product, a review, an event, a FAQ — and the specific properties of that content. Search engines use this to display rich results: star ratings, price ranges, FAQ dropdowns, and more. These enhanced listings earn more clicks than plain text results.

What is mobile-first indexing?

Google primarily uses the mobile version of your website to determine how your pages rank, even for desktop searches. If your mobile site is slower, has less content, or renders differently from your desktop site, your rankings will reflect the weaker mobile experience. We audit mobile performance, content parity, and usability to ensure your site is ready.

How does page speed affect rankings?

Page speed is a direct ranking factor for Google, particularly on mobile. Beyond rankings, slow pages increase the rate at which visitors leave before the page finishes loading — meaning fewer people see your content regardless of where you rank. We optimise images, reduce render-blocking resources, improve server response times, and configure CDN caching to speed up every page.

Do I need a CDN and how does it help?

A Content Delivery Network (CDN) distributes your site's assets — images, scripts, stylesheets — across servers around the world, so visitors load them from a server geographically close to them. This reduces latency, improves load times, and improves Core Web Vitals scores for international visitors. For globally accessed sites, a CDN is essential infrastructure.

What causes pages to not be indexed by Google?

Pages can fail to be indexed for many reasons: blocked in robots.txt, a noindex tag, poor crawl budget allocation, canonical tags pointing elsewhere, slow loading times that cause Googlebot to time out, JavaScript rendering issues, or simply not being linked to from any other page. We identify the exact cause for every missing page and fix it.

What is server response time and how do I improve it?

Server response time (also called TTFB — Time To First Byte) is how long it takes your server to begin responding to a request. A slow server response delays everything that happens after it — HTML parsing, resource loading, rendering. We analyse your hosting setup, database queries, caching strategy, and CDN configuration to bring response times down.

How often should a technical SEO audit be done?

We recommend a full technical audit whenever you launch a new site or make significant changes to your platform or architecture. For established sites, a quarterly review catches regressions introduced by development changes, and monthly monitoring of Core Web Vitals and index coverage catches problems before they affect rankings.

Can technical SEO fixes hurt my rankings?

Poorly implemented technical changes can harm rankings — particularly incorrect canonicals, accidental noindex tags, and botched redirects. This is why we always test changes in a staging environment before deploying to production and verify the outcome in search engine tools after each change. Every fix is checked, not just applied.

Find out what is holding your site back

Get a free technical SEO audit and receive a prioritised list of exactly what to fix — with the impact each fix will have on your search visibility.

Get Your Free Technical SEO Audit