Technical SEO: so that Google can fully crawl your website

Technical SEO covers all measures that ensure search engines can reliably crawl a website, interpret it correctly and include it in their index. This includes clean URLs, unambiguous redirects, correct canonical tags, a complete sitemap, a sensible robots.txt, structured data and good loading times.

These topics are usually invisible to visitors. That is exactly why they are often neglected: the website looks good and seems to work, but in the background redirect chains, duplicate content or accidentally blocked pages prevent Google from considering the most important content at all.

The consequences only become visible in Search Console: pages are “discovered but not indexed”, Google selects a different URL as canonical, or important subpages simply do not appear in the search results. Technical SEO makes these causes visible and removes them.

Before a page can rank, Google has to find it and add it to the index. We check whether all important pages can be reached via internal links, whether the sitemap is complete and up to date, and whether robots.txt accidentally blocks areas that should actually be found.

The opposite direction is just as important: pages such as login, shopping cart, internal search results or form steps should usually not appear in the index. We make sure such pages are correctly marked noindex so that Google spends its crawl budget on the pages that matter for your business.

After changes, we submit the affected pages for indexing in a targeted way and monitor in Search Console when Google re-crawls them. Because manual indexing requests are limited per day, we plan the order by priority: new and changed pages first, then the rest.

Many websites can be reached under several addresses: with and without www, via HTTP and HTTPS, with and without a trailing slash, or in upper and lower case. For Google, these are initially different URLs. Without clear rules, signals are spread across several variants, and in the worst case redirect chains or loops are created.

We define one unambiguous main address and redirect all variants to it with a single permanent redirect. Each page receives a correct, self-referencing canonical tag, and multilingual websites get clean hreflang annotations so that Google serves the right language version.

We also handle removed or renamed pages deliberately. A page that still has impressions on Google should not simply end in a 404 error but – if there is a suitable alternative – redirect with a 301 to the thematically closest page. This keeps visitors and ranking signals.

Structured data according to schema.org helps search engines to classify the content of a page unambiguously: is it a company, a product, a piece of software, an article or a page with frequently asked questions? With the right markup, Google can understand and display your content more precisely.

We add structured data as JSON-LD directly to your website's templates, for example for organisation, breadcrumbs, FAQ, articles or software applications. It is important that the markup always corresponds to the visible content of the page. Invented reviews or information that is not on the page do not belong in it.

Because we generate the markup from the same data as the visible content, both automatically remain consistent. If an FAQ answer changes, the corresponding JSON-LD changes too – without a second place to maintain.

Google also evaluates the user experience, among other things via the Core Web Vitals: how quickly the main content becomes visible, how promptly the page responds to input and whether the layout shifts while loading. Slow or jumpy pages also lose visitors before they have even seen your offer.

Typical causes are oversized images, uncompressed scripts and stylesheets, too many external embeds or server-side delays. We measure the values, identify the biggest bottlenecks and optimise in a targeted way: modern image formats, caching, minified files and lean delivery.

Because most local and many business searches take place on smartphones, we also check every page on mobile. Readable font sizes, sufficiently large buttons and a display without horizontal scrolling are a must, not an extra.

A technical SEO audit is a snapshot. Websites, however, change constantly: new pages are added, content is revised, updates are installed. New errors keep appearing in the process, such as a forgotten redirect or a page without a meta description.

That is why we monitor your website continuously with our own AI-supported SEO tool. It crawls the pages, evaluates the Google Search Console data and reports anomalies such as HTTP errors, missing title tags, missing canonicals, falling click-through rates or ranking losses.

This way we usually detect problems before they noticeably affect your visitor numbers. You receive a short update every week and a detailed report every month showing what was found and what was fixed.

Technical SEO is basically worthwhile for every website that is supposed to win customers via Google. The effect is particularly large for websites with many subpages, such as online shops, booking platforms, portals or multilingual company websites, where small errors quickly multiply.

It is just as worthwhile after a relaunch or a move to a new system. That is exactly when redirects are often lost, URLs change unnoticed and rankings built up over years collapse. A technical check before and after the move prevents this.

We work regardless of who originally built your website. With our own development experience in Microsoft .NET, ASP.NET Core and modern web technologies, we can implement changes ourselves or coordinate closely with your current development team.

First we record the current state: we crawl the entire website, read the sitemap and robots.txt and compare the URLs found with the Google Search Console data. This shows us which pages exist, which ones Google knows, which are indexed and where there are discrepancies.

In the second step, we assess every finding by severity and impact. A server error on a heavily visited page takes priority over a missing alt description on a rarely used subpage. You receive a clear, prioritised overview explaining why a point matters and which solution we propose.

We then implement the measures, test them in a development environment and deploy them after your approval. Finally, we check with a new crawl and in Search Console whether the corrections are working, and submit changed pages for re-indexing.