Technical SEO for Cardiff Businesses

A Cardiff public sector business in United Kingdom had invested in content for two years without seeing expected ranking improvements. A technical audit revealed duplicate content, pages blocked from indexing and Core Web Vitals failures. After fixing these, organic traffic increased materially within three months — the content had been good; the technical foundation had been undermining it.

Crawlability, Indexation and Rendering

Before a page can rank it has to be crawled, rendered and indexed correctly — and this is where a surprising number of sites quietly fail. We start at the crawl layer: how Googlebot moves through your site, what it is allowed to reach, and whether it wastes its limited crawl budget on duplicate URLs, faceted-navigation parameter explosions, or endless pagination. We analyse robots directives, canonical tags, XML sitemaps and the indexation report in Search Console to find pages that should rank but are excluded, and pages that are indexed but should not be.

Modern JavaScript frameworks add a second failure mode: content that exists for users but not for the crawler at the moment it matters. We test how your pages render — server-side, static or client-side — and confirm that critical content and links are present in the rendered HTML Google actually sees. For React, Next.js and similar stacks this rendering audit is often the single highest-impact piece of work, because no amount of content or links helps a page the crawler never sees.

Core Web Vitals and Log File Analysis

Core Web Vitals — Largest Contentful Paint, Cumulative Layout Shift and Interaction to Next Paint — are page experience signals that affect rankings and, just as importantly, real user behaviour. We profile field data from the Chrome User Experience Report alongside lab data from Lighthouse, then trace each failing metric to its cause: a slow hero image, render-blocking scripts, layout shifts from late-loading content, or heavy main-thread work hurting interactivity. We fix the cause rather than chasing a synthetic score.

For larger sites we go to the server logs. Log file analysis shows what Googlebot is genuinely crawling, how often, and where it spends its budget — evidence you cannot get from any other source. It reveals crawl traps, orphaned sections, and important pages that are rarely visited, letting us redirect crawl attention to the pages that earn revenue.

Structured Data, Tooling and Who Its For

We implement and validate structured data — Organization, Product, Article, FAQ, Breadcrumb and the schema types relevant to your content — so your pages become eligible for rich results, and we test every change against Google's Rich Results tooling rather than assuming it parsed. Our core toolkit is Screaming Frog for full-site crawling, Google Search Console for indexation and Core Web Vitals field data, Lighthouse and PageSpeed Insights for diagnostics, and server log analysis for crawl behaviour.

Technical SEO is the right starting point when you have invested in content and links but rankings have stalled, when you are migrating or replatforming, or when you run a large catalogue where crawl efficiency genuinely matters. It is less urgent for a small, fast, well-structured site with only a handful of pages — there the constraint is almost always content, not technical health. We are happy to tell you when that is the case rather than sell you an audit you do not need. We can deliver a prioritised implementation guide for your developers or implement fixes directly on WordPress, Next.js and custom stacks.

• Full crawl audit covering indexation, canonicals, redirects and crawl budget
• JavaScript rendering checks to confirm Google sees your real content
• Core Web Vitals diagnosis and remediation from field and lab data
• Server log file analysis to map and redirect actual crawl behaviour
• Structured data implementation validated for rich-result eligibility