Guides for SEO and GEO
How-tos on technical SEO, AI crawlers, data and website migrations.
AI & GEO
Which protocols exist, where they already run today and what your shop can prepare technically.
How agents read pages, where they fail and how to fix the most common stumbling blocks.
What Generative Engine Optimization means, why it builds on technical SEO and how to measure mentions in AI answers.
Which agents exist, how they are built, what has changed since August 2026 and why you barely see them in your data.
Which bots train, which crawl for AI search and what a block in robots.txt really does.
How Claude Code searches, converts and summarises web pages, and what of that reaches the model.
Why public datasets of real AI prompts are small and skewed, and what to use for demand instead.
What belongs in the file, who reads it and whether it helps you in ChatGPT and similar tools.
How forms and functions become tools for browser agents, what Chrome supports today and how to measure agent calls.
Which AI crawlers execute JavaScript and what that means for your content, with an overview of 39 bots.
Where AI browsers get stuck on your site and how you adjust structure, forms, banners and bot protection.
Technical SEO
What the status codes mean for Google, how to set them up and how to avoid chains during a migration.
How Google picks the canonical URL and how to avoid conflicts with sitemaps, JavaScript and hreflang.
Cloudflare decides which crawlers see your pages. Here is how to check blocks, logs and robots.txt.
Thresholds, field and lab data, and the most common causes of poor scores.
This guide explains how Google crawls, renders and indexes pages, and how to read the “Page indexing” report.
Codes, x-default and the three ways to implement it, with examples and the most common mistakes.
How to generate hreflang from the language switcher without development work, and where the method reaches its limits.
Which URL gets which signal and how to avoid conflicting signals on international websites.
A URL gets several hreflang values when it is both x-default and a language version, or serves several countries.
What a technical SEO audit checks, how to prepare it and how thousands of findings become a short list.
How to split sitemaps for large websites, what Google reads and how to find errors early.
How bot protection locks out customers, Googlebot and AI bots, and how you verify bots and respond in stages.
Why Disallow: / and noindex on staging are risky, and how password protection and IP allowlisting keep the test environment safe and testable.
Where the errors from the old report live today and which ones are really worth your time.
How to use GA4, Search Console and a crawl to find the 404 errors that cost clicks.
Data & monitoring
All core updates since 2024 and how to check in Search Console whether a loss comes from the update.
How to find Googlebot and AI bots in your logs, separate real from fake ones and when crawl budget matters.
How to set up the bulk data export and what it shows beyond the interface and the API.
Which metrics count and how to bring Rank Tracking and Search Console together in one report.
How to get the links out of the Links report, where the sample ends and why there is no API for it.
Lookup and RegEx tables with GA4 examples, from campaigns via URL fragments to one measurement ID per domain.
Which URLs lead nowhere and which link brings visitors there, step by step in GA4.
Relaunch & migration
What to secure before the migration, check on staging and watch after go-live.
What really slows things down after go-live and how to find the actual cause with your infrastructure team.
A case study with three markets shows when visibility grows after the merger and when it drops first.
How to check redirects on staging, avoid chains and keep an eye on old URLs after the migration.
How to protect your test environment properly and check every release before it goes live.
Three scenarios show what is at stake for SEO in a website migration and what SEO in the project is worth spending.
Which pages, PDFs and images bring traffic today, and how do you carry them over to the new website?
Nine causes of ranking losses after a website migration and how to check them before and after the go-live.
Law & advertising
What Directive (EU) 2024/825 regulates, when it applies and how Germany has transposed it into the UWG.
See which rule of the EmpCo Directive applies to product texts, filters, labels and feeds.
Where environmental claims arise in corporate groups, from brand sites to press archives, and how to capture them all.
What the EmpCo Directive means for ads, snippets, newsletters and partnerships, and where variants are created automatically.
Experiments and studies
How we used SEMrush data, on-page features and a neural network to find keywords with ranking potential.
An experiment on searchviu.com shows which version of a page Google reads for hreflang.
We tested on searchviu.com what Google takes from the rendered HTML and how long that takes.
We tested whether Google picks up canonicals from the rendered HTML and how long that takes.
Three rules and a cookie cut the shop's load time from 4.49 to 3.25 seconds. Here is how we did it.
We show where source code and rendered HTML differ and what Google and AI crawlers see of it.
Googlebot rejects service workers. Here is how to check that your pages arrive complete without them.
Our test with eight price sources and five AI systems shows what arrives when a page is fetched.