You can think of SEO as being similar to the design and marketing of a book:
A book may contain the most interesting and valuable content, but it still needs to be discoverable. The title has to fit, the language must match the target audience, and the blurb needs to clearly explain what the book is about.
Google and search engines are like robotic librarians. They do not just scan whether content or a website is relevant. They also assess whether it is even worth scanning in the first place.

SEO creates these signals of relevance and makes websites understandable and relevant from a search engine’s point of view.

How a Search Engine Thinks

A person searches for: “criminal defense lawyer Berlin”

What does the search engine now do, “think,” and take into account? In reality, thousands of metrics come into play, but let us keep it simple.

First, the search engine asks itself what it already knows about the user: Where are they located? What language are they searching in? What is their browser language? What device are they using? Is the website even properly displayed and optimized for their smartphone, for example? What has their search and click behavior looked like in the past? Search engines know all of this with remarkable precision.

In our simple example, the search engine would recognize that the user speaks German, is usually located in Berlin, and is looking for a lawyer who specializes in criminal law.

-> That is why search results can vary depending on the user, location, and language. They are not the same for everyone.

And all of this happens within milliseconds.

In the next step, the search engine looks for results based on probabilities and SEO-related rules.

Which factors influence the results?

• technical SEO
• topical relevance and authority
• domain history
• references and backlinks
• Competition
• Keywords

Or, to put it simply: The website that is most likely - according to the search engine’s standards and algorithms — to match the user’s search intent gets prioritized in the rankings and receives the click.

Search algorithms are constantly evolving. They learn from users and are never static. The exact way they work is one of Google’s best-kept secrets. But they all follow the same goal: delivering the greatest possible value to the searcher. And that is exactly what search engine optimization is about at its core.

By 2026, one thing is becoming increasingly clear: search engines are thinking more in terms of context and less in terms of isolated keywords. Every search query is now interpreted contextually.
In the past, search was much more keyword-based. Search engines mainly looked for the exact keywords entered by the user. In our example, that would be “criminal law lawyer Berlin”, and websites using those exact keywords were more likely to rank prominently. Today, however, we can see in Google Search Console that search queries are often effectively “translated” by the search engine. A query might be entered as “criminal law lawyer Berlin”, but then be processed in context as “criminal defense attorney in Berlin” if the search engine considers that phrasing contextually equivalent and more promising for delivering the best result. This shows how modern SEO is no longer just about exact keywords. It is about meaning, relevance, and context.