Technical SEO: the basis for rankings and AI visibility

Crawling, indexing and rendering under control
Measurably better Core Web Vitals and loading times
Implementation by us or your development team

Enquire about technical SEO

Customer satisfaction

4.9

Based on 33 reviews

Technology decides whether content is found

Good content only helps if search engines can read it

Many websites lose visibility not because of their texts but because of their technology: pages cannot be indexed, load too slowly or only build their content in the browser. Technical SEO makes sure that Google and AI systems capture your website completely, fetch it quickly and classify it correctly. We find the causes and fix them: with our own developers or with tasks your team can implement directly.

Causes, not symptoms

A loss of visibility almost always leaves a technical trail. We analyse the crawl, Search Console and server logs together until the cause is clear.

We do the implementation too

Our team includes two full-stack developers. We implement measures ourselves or give your developers tasks with URLs, finding, goal and acceptance criterion.

For AI search too

According to measurements so far, many AI crawlers do not execute JavaScript. Blocks in robots.txt or the firewall, often set without anyone noticing, keep them out as well. Technical SEO is therefore the foundation for GEO.

What technical SEO covers

Six areas, one prioritised list

Not every website needs everything. We start by taking stock and then work in order of impact.

Crawling and indexing

robots.txt, XML sitemaps, canonicals, noindex and redirects have to fit together. We check which pages Google actually crawls and indexes, and clear up contradictions.

Loading time and Core Web Vitals

We measure Largest Contentful Paint, Interaction to Next Paint and Cumulative Layout Shift with lab and field data and name the causes: server response, images, scripts, fonts.

JavaScript and rendering

We compare the delivered HTML with the fully rendered page. If content, links or meta information are missing from the HTML, we recommend server-side rendering or pre-rendering.

Structured data

Markup for the organisation, products, articles and other types is checked, corrected and extended. We validate it against the requirements of Google and Schema.org.

Site architecture and internal linking

Click depth, orphaned pages, pagination, filters and language versions with hreflang: we make sure important pages can be reached and unimportant ones do not tie up crawl budget.

Server logs and AI crawlers

With a log file analysis we see which bots really come, what they fetch and where a firewall or bot protection locks them out.

Do you suspect a technical problem?

Tell us what you are seeing. We will tell you where we would start.

Contact person:
Ralph Grundmann
0228 243 313 53

Get in touch now

How we work

From analysis to sign-off

We implement the measures ourselves or work with your agency or development team. In that case we follow their processes, such as sprints and the ticket system.

Access and goals

We clarify goals, systems and people involved and receive access to Search Console, web analytics and, where possible, server logs.

Crawl and measurement

We crawl the website, measure loading times and compare HTML and rendered page for the most important page types.

Findings and priorities

You receive a list using a traffic-light system: what is critical, what is important, what can wait. An SEO analysis can also serve as the basis.

Implementation or tickets

Our developers implement the measures. If your own team does the work, we deliver tasks with URL lists, sample code and an acceptance criterion, directly in your ticket system if you wish.

Testing on staging

Changes are made in a test environment first, backed up and checked. If your team implements them, we answer questions and check interim versions.

Sign-off and monitoring

After go-live we measure again and watch indexing, loading times and visibility.

Technical check

Do you know what Google really sees on your website?

We show you, using your most important page types.

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From our projects

Typical findings from our projects

The following examples come from projects in 2026, anonymised here.

Slow server response: on a manufacturer’s product pages, the first server response took 1.85 seconds. In addition, the most important image was only loaded via JavaScript. The benchmark of 2.5 seconds for Largest Contentful Paint could not be reached this way.
Wasted crawl budget: a log file analysis with around 12 million lines showed which AI crawlers actually fetch the website and where loops and oversized files use up crawl budget.
Hard-coded addresses: before a relaunch we found 2,136 hard-coded links to the old address and main content that only became visible after 15 seconds, because original photos of four to seven megabytes were being loaded.
Contradictory signals: canonicals pointed to redirected addresses and the sitemap contained blocked pages. In such cases Google decides for itself, often to the detriment of the website.

If a new design or a change of system is coming up, SEO relaunch support is the right framework.

Frequently asked questions about technical SEO

FAQs on technical SEO

The essentials on scope, collaboration and effect.

What is technical SEO?

Technical SEO covers all measures that allow search engines to crawl, render and index a website without errors. This includes loading time, index management, redirects, structured data and site architecture.

Do you implement the measures yourselves?

Yes. Our team includes two full-stack developers who implement technical measures directly in your system. We do not build completely new websites. If your company has its own developers or agency, we deliver tasks that can be implemented directly.

How quickly do technical measures take effect?

That depends on the finding. A block that has been lifted takes effect as soon as Google has recrawled the pages. Improvements in loading time only show in Google’s field data after a few weeks, because the data covers a rolling 28-day window.

Which values apply to the Core Web Vitals?

According to Google, good values are a Largest Contentful Paint of no more than 2.5 seconds, an Interaction to Next Paint of no more than 200 milliseconds and a Cumulative Layout Shift of no more than 0.1.

What does technical SEO have to do with AI search?

AI systems draw on search indexes and access websites directly. Content that is only created with JavaScript, or that crawlers cannot fetch because of a firewall, is missing from AI answers. That is why we check both together.

For which systems do you offer technical SEO?

For all common systems, from WordPress and TYPO3 to shop systems and custom developments with JavaScript frameworks. The requirements for clean HTML, loading time and indexing are the same everywhere.

Enquire about technical SEO

Let us talk about your website

Tell us which system you use and what you are seeing. We will get back to you with a proposal for getting started.

Customer satisfaction

4.9

Based on 33 reviews

Founder and Managing Director Ralph Grundmann 0228 243 313 53