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SEO (Search Engine Optimization)

Search Engine Optimization, or SEO for short, is the process of optimizing a website so that it can be found by search engines like Google—ideally at the very top of the search results.

What does the term SEO mean?

The goal of SEO is for Google to understand what’s happening on a website, trust it, and display it as high as possible in the search results. Unlike SEA, where you pay for results, improvements through SEO are organic and essentially free—if you know what you’re doing.

SEO is based on three interrelated areas:

Technical: The website must be readable by search engines, load quickly, and be well-structured.

Content: Each page should answer a question that people actually type into the search bar.

Authority: Links and mentions on other websites strengthen a domain’s relevance and can boost its ranking in search results.

The goal is to achieve lasting, unpaid visibility for the exact search terms your target audience uses.

Where did SEO originate?

The term SEO emerged in the 1990s with the first search engines. Initially, these could be manipulated using simple methods. Search terms were repeated en masse or hidden as white text on a white background.

Starting in 1998, Google changed its ranking algorithm by making backlinks from other websites a key factor. User experience also became increasingly important.

Today, the site that best answers the question usually comes out on top. One of the many subdisciplines of SEO is sure to have the answer.

Why is SEO important?

Most purchases begin with a search. Anyone who doesn’t appear in those search results has already lost, because they don’t exist for the searchers. The purpose of SEO is therefore to be accessible to people and their search queries. When they’re looking for a solution, SEO provides the right offer. Search engine optimization works around the clock to achieve this, without incurring any costs per contact.

Advantages

  • Well-ranked content attracts visitors for years.
  • Organic search results—that is, anything not labeled “Sponsored”—are trusted more than ads.
  • The impact of SEO is cumulative: Every new piece of content strengthens the entire website.
  • Well-crafted SEO copy, website structures, and technical SEO form the foundation for communicating with AI systems as well.

Challenges

SEO takes time. Results appear over months, not days. And without ongoing maintenance, there are no lasting results. Getting through these dry spells is often the biggest hurdle. Concrete results cannot be guaranteed. Anyone who promises guarantees doesn’t understand much about SEO. The heavy reliance on Google and its changing ranking algorithms, evolving search environments, and AI-generated responses require constant optimization. Simply keeping track of all this is a specialized discipline in itself.

Example

A supplier for custom machine manufacturing publishes a guide on its website addressing the question, “Stainless Steel or Aluminum in Plant Engineering?” The article answers the question thoroughly and impartially. After several months, it ranks at the top of Google’s search results and has since consistently driven engineers—who are facing precisely this material decision—to the website. The supplier is perceived as competent, trustworthy, and helpful. Inquiries from design engineers are on the rise. No advertising budget is required. The article continues to work on its own.

Related terms

On-Page and Off-Page Optimization On-page refers to everything on your own website; off-page refers to everything outside of it. Keyword A keyword is a search term that users enter into a search engine to find something. Ranking Ranking refers to the position at which a website appears on the search results page (SERP) for a specific search query. SEA (Search Engine Advertising) SEA refers to paid ads on search engines.