Technical SEO Audit
A comprehensive deep-dive into your site's technical health — crawlability, indexability, architecture, speed, structured data, and more. Delivered as a prioritised, developer-ready remediation roadmap.
Get Started →We diagnose and resolve the technical issues that prevent UK websites from ranking — crawlability, Core Web Vitals, JavaScript SEO, site speed, and more. Specialist technical SEO services built around your platform, your team, and your growth goals. No lock-in contracts.
No obligation. No sales pressure. Response within 48 hours.
Technical SEO is the process of optimising the underlying infrastructure of your website — the elements that search engines use to crawl, render, understand, and rank your pages. Without solid technical foundations, even the best content and most powerful links will fail to deliver rankings.
As a specialist technical SEO agency, we audit, diagnose, and resolve the technical barriers preventing your UK website from achieving its organic search potential. From crawlability and indexability to Core Web Vitals, JavaScript rendering, and site migrations — we fix the issues that other agencies miss.
Every service targets a specific layer of your website's technical foundation — systematically eliminating the barriers that prevent search engines from ranking your pages.
A comprehensive deep-dive into your site's technical health — crawlability, indexability, architecture, speed, structured data, and more. Delivered as a prioritised, developer-ready remediation roadmap.
Get Started →Improve your LCP, INP, and CLS scores to meet Google's page experience thresholds. From image optimisation and lazy loading to layout shift elimination and interaction delays — we fix the full CWV picture.
Get Started →Resolve robots.txt misconfigurations, sitemap errors, canonical issues, orphaned pages, crawl traps, and crawl budget waste — ensuring Google can discover and index every page that matters to your business.
Get Started →Reduce page load times through server configuration, caching strategy, image format optimisation, CSS/JS minification, and CDN implementation — improving both user experience and Google rankings simultaneously.
Get Started →Diagnose and fix client-side rendering issues that prevent Googlebot from discovering and indexing your content. Specialist support for React, Next.js, Angular, Vue.js, and SPAs used by UK businesses.
Get Started →Implement JSON-LD schema markup — Organisation, WebPage, FAQPage, Article, Product, HowTo and more — to help Google understand your content and earn rich results that increase organic click-through rates.
Get Started →Analyse your server log files to understand exactly how Googlebot crawls your site — which pages are being visited, how frequently, and where crawl budget is being wasted on low-value URLs.
Get Started →Protect your organic rankings through platform changes, domain moves, and site redesigns. Full pre-migration audit, URL mapping, redirect strategy, and post-migration monitoring to minimise traffic loss.
Get Started →Deep platform-specific technical SEO expertise — we understand the architectural constraints and opportunities of every major CMS and framework used by UK businesses.
Technical SEO requires a different level of precision and depth than general SEO. Here's why UK businesses trust us with their most complex technical challenges.
Our team includes specialists in JavaScript rendering, server configuration, site architecture, and structured data — not generalists dabbling in technical fixes between other projects.
Month-to-month only. You stay because the results justify it — not because a 12-month contract forces you to. Full flexibility, zero financial risk for your UK business.
Our technical SEO roadmaps are written to be acted on — with specific file locations, code snippets, implementation priorities, and expected impact. Your dev team knows exactly what to do and why.
Unlike consultancy-only agencies, we can implement technical fixes directly — working within your CMS, alongside your dev team, or taking full ownership of implementation end-to-end.
A named technical SEO expert manages your account — someone who knows your platform, your architecture, and your business priorities. No call centres, no ticket queues, no chasing.
Every strategy we implement is white-hat and future-proof. We fix the real technical issues — not superficial changes that look impressive on a report but change nothing in your rankings.
A clear, systematic 4-step process — from a free in-depth audit to continuous technical health monitoring and organic growth.
We conduct a comprehensive technical audit of your website — covering crawlability, indexability, Core Web Vitals, JavaScript rendering, structured data, site architecture, duplicate content, and internal linking. You receive a detailed report identifying every technical issue, at no cost, with no obligation to proceed.
Every technical issue we find is scored by SEO impact and implementation complexity. We deliver a clear, prioritised roadmap — with exact developer instructions, code examples, and expected outcomes — so your team always knows exactly what to fix next and why it matters.
Our technical SEO specialists either implement fixes directly within your CMS or work alongside your development team. Every change is QA tested in a staging environment before going live — preventing regressions that could cause ranking drops during implementation.
Post-implementation, we monitor crawl data, Core Web Vitals, indexation health, and ranking movements every month. Continuous technical health checks prevent issues from re-emerging as your site evolves — protecting and compounding the gains from every improvement made.
Numbers from real UK clients — demonstrating the measurable impact of resolving technical SEO issues that were suppressing organic performance.
JavaScript rendering issues were blocking Googlebot from indexing 60% of the site's content. After implementing SSR and resolving canonical errors, indexed pages grew by 156% within 10 weeks.
Full Core Web Vitals remediation — image format overhaul, critical CSS inlining, layout shift elimination — moved 94% of pages from failing to passing within 8 weeks, driving 134% mobile traffic growth.
Resolving JavaScript rendering issues, fixing article schema, and eliminating 8,000+ duplicate URLs from the crawl queue freed up budget for content pages — unlocking 340% Google Discover traffic growth.
★★★★★"We had a major JavaScript SEO problem that three other agencies had failed to diagnose correctly. ProfessionalSEO India identified it within the first week, provided a clear fix, and our indexed pages doubled within 6 weeks. The technical depth here is genuinely exceptional."
★★★★★"Our Core Web Vitals were catastrophic — every page failing LCP and CLS. Within 8 weeks of the technical SEO engagement, we'd moved from failing to passing across the entire site. Mobile traffic increased 134% and we've maintained those scores ever since."
★★★★★"The site migration support was outstanding. We moved from a legacy CMS to a new platform and lost zero organic traffic — in fact, we gained 18% in the month following migration. The level of planning and post-migration monitoring gave us complete confidence throughout."
Flexible, month-to-month plans with no hidden costs. Every package includes a dedicated account manager and monthly technical health reporting.
For small UK businesses needing a solid technical SEO foundation and clear fix priorities.
For UK businesses serious about resolving all technical barriers and achieving sustained organic growth.
Full-service technical SEO for large UK organisations with complex platforms and high-volume sites.
Not sure which plan suits your site? Let's talk — we'll recommend the right approach for your technical challenges and budget.
Everything UK businesses ask us before starting a technical SEO engagement.
A technical SEO agency is a specialist digital marketing company that focuses on the technical foundations of a website that influence how search engines crawl, render, index, and rank its pages. This includes site architecture, page speed, Core Web Vitals, structured data, crawlability, JavaScript rendering, and site migrations — the invisible infrastructure that determines whether your content can even be found and ranked by Google.
A comprehensive technical SEO audit covers: crawlability and indexability analysis, XML sitemap and robots.txt review, duplicate content and canonical tag assessment, site speed and Core Web Vitals measurement (LCP, INP, CLS), JavaScript rendering evaluation, internal link architecture review, structured data validation, mobile usability testing, HTTPS and security compliance checks, log file analysis, and a full prioritised remediation roadmap with developer-ready instructions.
Results timelines vary by issue type. Critical crawlability and indexability fixes can show measurable results within 2–4 weeks as Google re-crawls the site. Core Web Vitals improvements typically affect rankings within 4–8 weeks. Broader authority and traffic gains from comprehensive technical improvements generally become measurable within 3–6 months. We set honest expectations from day one — and most clients see quicker wins than they anticipate.
Core Web Vitals are Google's page experience metrics: Largest Contentful Paint (LCP — measures loading speed), Interaction to Next Paint (INP — measures interactivity responsiveness), and Cumulative Layout Shift (CLS — measures visual stability). Google uses these as a ranking signal, particularly for mobile search. UK sites that fail Core Web Vitals thresholds are at a competitive disadvantage in organic search. Passing all three signals to Google that your site delivers a high-quality user experience.
Yes. Site migration SEO is one of our core technical SEO services. We manage the full process — pre-migration technical audit, URL mapping, redirect strategy implementation, crawl monitoring during the migration, and post-migration validation. Poor site migrations are one of the most common causes of catastrophic organic traffic loss for UK businesses. Our process is designed to protect your rankings throughout the transition and, where possible, use the migration as an opportunity to improve your technical SEO foundations.
Yes. JavaScript SEO is a specialist area where many agencies lack the depth to diagnose and resolve issues correctly. We work with React, Next.js, Angular, Vue.js, and custom SPA frameworks, diagnosing issues with client-side rendering, dynamic content that Googlebot cannot see, hydration delays, and routes that block indexation. We can implement or recommend server-side rendering (SSR), static site generation (SSG), or dynamic rendering strategies to ensure your JavaScript content is fully indexable.
Technical SEO pricing varies based on site size, technical complexity, and the scope of issues identified. Rather than fixed prices that may not suit your site's specific challenges, we offer bespoke quotes following a free technical SEO audit. This ensures you invest in the specific fixes that will generate the strongest return for your business — not a generic package of activities that may not apply to your situation.
Yes. As a remote-first technical SEO agency, we work with businesses across the entire UK — including London, Manchester, Birmingham, Leeds, Bristol, Edinburgh, Glasgow, Liverpool, Sheffield, Nottingham, Cardiff, and Leicester. All technical SEO work — audits, implementation, monitoring, and reporting — is conducted remotely, meaning location is no barrier to delivering exceptional results for your site.
Our technical SEO agency serves businesses across every major UK city and region. Click your location to learn more about our local technical SEO expertise.
Join 200+ UK businesses that have used our technical SEO services to fix the foundations of their organic search performance. Get your free technical SEO audit — no obligation, no sales pressure, response within 48 hours.