Keywords

What Are Keywords?

Keywords (known in German as search terms or key phrases) are the words and phrases users enter into a search engine to find something. They form the bridge between a user's question and the relevant content of a website. For search engine optimisation (SEO), keywords are fundamental because they reveal what the target audience is actually searching for and which terms they use to do so.

The modern understanding is crucial here: it’s no longer just about hitting individual words but understanding and addressing the intent behind the search.

The Most Important Types of Keywords

• Short-Tail Keywords: Short, general terms consisting of one or two words, such as "shoes" or "laptop". They have a high search volume but very strong competition and unclear intent. Someone searching for "shoes" might want to get information, compare products, or make a purchase – it’s not clear.
• Long-Tail Keywords: Longer, specific search phrases consisting of three or more words, such as "red running shoes for women size 6". The search volume is lower, the competition weaker, and the purchase intent usually much clearer. For smaller websites, long-tail keywords are often the most valuable opportunity to rank at all.
• Related Terms and Synonyms: Thematically connected words that provide context to a text. An article about "apples" appears more comprehensive if terms like "fruit", "vitamins", or "varieties" are also included. Modern search engines recognise these connections and evaluate thematic depth positively.

Search Intent: The Decisive Factor

Today, it’s not the keyword itself that matters most, but the search intent behind it. There are essentially four types:

• Informational: The user is seeking knowledge ("how to tie a tie").
• Navigational: The user is looking for a specific page or brand ("DLx-Media glossary").
• Commercial: The user is comparing options before making a purchase decision ("best running shoes test").
• Transactional: The user wants to take action, such as making a purchase ("buy running shoes online").

Content will only rank well if it matches the intent. A sales page is unlikely to rank for a purely informational search, and vice versa.

Where Keywords Should Be Placed

To help search engines identify the main topic of a page, the primary keyword should appear naturally in the most important places:

• Page Title (Title Tag): The most important position, as the title appears in search results.
• Meta Description: Influences the click-through rate, even though it is not a direct ranking factor.
• Headings (H1, H2): Structure the content and signal the central topics.
• First Paragraph: The keyword should appear early in the text.
• Image Alt Texts: Help with classification and image search.
• URL: A descriptive URL with the keyword supports classification.

The key is that the placement feels natural. Forced repetitions (keyword stuffing) are seen by Google as an attempt at manipulation and can lead to penalties.

Keyword Research: How to Find the Right Terms

Choosing the right keywords is the foundation of every SEO strategy. A proven approach:

• Understand the Target Audience: What questions and problems do they have, and what words would they use to search for them?
• Use Tools: Tools like the Google Keyword Planner, Ahrefs, SEMrush, or the free Google Search Console provide data on search volume and competition. The Google autocomplete feature and the "Related Questions" section are also valuable, free sources.
• Analyse Competitors: Which terms are successful competitors ranking for?
• Focus on Long-Tail: Especially for new or smaller websites, specific long-tail keywords are more realistic and often more profitable.

Keywords in the Age of AI and Semantic Search

The traditional focus on individual keywords is becoming less important. Modern search engines and AI response systems (keyword GEO) evaluate content based on meaning and thematic completeness, not just word matches. Instead of optimising a text for a single keyword, a topic should be covered comprehensively. Tools like TermLabs.io help identify thematically relevant terms that make content complete and competitive. Keywords thus remain a starting point, but the goal is content that fully addresses a topic.

Conclusion

Keywords are the starting point of every SEO strategy because they show what and how the target audience is searching. However, what matters today is no longer the mere use of individual terms but understanding the underlying search intent and comprehensively and naturally covering a topic. Those who consistently align their content with the real needs of users build a solid bridge between search query and solution – and that is exactly what search engines and AI systems reward equally.