TechnicalSEO-LondonTechnical SEO - London

Technical SEO is the practice of building a website's infrastructure so search engines can crawl, render, and index it efficiently. It covers rendering, load speed, structured data, canonicalization, and crawlability, the parts that decide whether good content ever ranks at all.

Unlike content writing or link building, technical SEO is an engineering discipline. Google now renders JavaScript in a real Chrome instance before ranking a page, so how your site is built directly determines what Google sees. A page that looks fine in the browser but ships an empty HTML shell to the crawler simply does not rank.

This is why we build SEO into the code rather than patch it on afterward. Every page we ship server-renders its full HTML on the first request, so Googlebot receives finished content with zero rendering delay.

Bolt-on SEO is the practice of adding search optimization after a site is built, usually through plugins or manual tags. It consistently leaves gaps because the plugin cannot fix how the underlying platform renders, loads, or structures its pages.

WordPress SEO plugins can set a meta title, but they cannot make a plugin-heavy site pass Core Web Vitals or ship clean server-rendered HTML. We take the opposite approach and generate the technical layer from the build itself:

• Structured data: JSON-LD (Organization, Article, FAQ, Product, Breadcrumb) generated per page, not hand-written
• Crawl infrastructure: XML sitemaps, canonical URLs, and robots directives produced automatically and kept in sync
• Metadata: Open Graph, Twitter cards, and titles rendered into the static HTML shell, not injected client-side after load

The result is a site where the technical foundation is correct by construction. There is no plugin to misconfigure and no tag to forget.

Core Web Vitals are Google's measured signals for loading (Largest Contentful Paint), interactivity (Interaction to Next Paint), and visual stability (Cumulative Layout Shift), and they are a confirmed ranking factor. Every 100ms of added load time also reduces conversions by up to 7%, so speed pays twice.

We engineer performance at the infrastructure level with Next.js 16: Static Site Generation pre-renders pages at build time, edge caching serves them from close to the user, and React Server Components keep JavaScript off the client. The result is a Largest Contentful Paint under 1.2 seconds on mobile and Core Web Vitals scores above 90.

One B2B provider we migrated from WordPress saw a 38% lower bounce rate and 2.1x more qualified leads within 90 days. The only change was the platform, same content, same ad spend.

Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO) are the practice of structuring content so AI systems, Google AI Overviews, ChatGPT, Perplexity, and Claude, quote it directly. These engines increasingly sit between your page and the searcher, so being cited is the new page-one.

AI engines favor content they can extract cleanly: a clear question, a direct definitional answer in the first sentence, and machine-readable structure. We build pages that way on purpose:

• Question-based headings that match how people actually ask
• Answer-first paragraphs that state the definition before the detail
• FAQ, Article, and Organization schema that tells the engine what each block means

This is the exact method behind this site's own pages. Structured, answer-first content is readable by both a human in a hurry and a model deciding whom to cite.

A technical SEO audit is a systematic crawl of your existing site to find the specific issues costing you rankings and traffic. It replaces vague 'your SEO could be better' advice with a prioritized list of what to fix and what each fix is worth.

We crawl your site the way Googlebot does and report on:

• Rendering: whether the crawler receives finished HTML or an empty JavaScript shell
• Core Web Vitals: real LCP, INP, and CLS on mobile, with the specific causes
• Indexation: pages that are blocked, duplicated, or missing from the sitemap
• Structured data and metadata: missing, invalid, or incomplete schema, canonicals, and hreflang
• Internal linking: orphaned pages and where authority is leaking

You get back the three issues actually holding you back, a straight answer on effort (a morning, a week, or a rebuild), and no obligation. If the site is healthy, we tell you it is healthy. Send us the URL to start.

Multilingual SEO is the practice of structuring a site so search engines rank the right language version for each user, without the versions competing against each other. Done wrong, your German and English pages cannibalize each other's rankings; done right, each ranks in its own market.

We implement it with next-intl and programmatic hreflang annotations generated across every locale, so Google always serves the correct language variant. Each locale gets its own SEO-optimized URL structure, localized metadata, and translated content, not machine-translated strings bolted onto one page.

For businesses selling into Croatia, the DACH region, and English-speaking markets at once, this is what turns a single site into three ranking presences. It is the same architecture running this site across Croatian, English, and German.

Engineered SEO, plugin-based SEO, and retainer SEO agencies solve different parts of the problem. Engineered SEO fixes the technical foundation at the code level. Plugins patch metadata on top of a platform they cannot change. Retainer agencies focus on content and links but rarely touch the rendering and performance issues that cap your ceiling.