Keywords still matter, but not in the way they used to.

There is a growing belief that keywords have lost their value.  After all, AI tools now generate answers, and modern search engines understand natural language better than ever. People now ask full questions, and AI summarises the answer instead of showing links. Matching specific phrases may feel less important.

But here’s the truth: keywords aren’t dead. They’ve evolved.

How did keywords work in traditional SEO?

In the early days of SEO, keywords were the foundation. Marketers chose a phrase, placed it in titles, headings and content and repeated it enough times to signal relevance to Google. The search engine mostly relied on matching those exact or similar words to queries.

If you optimised for a phrase such as best ergonomic office chair you could expect to rank when someone typed those words. That approach made optimisation almost mechanical and sometimes resulted in content that read awkwardly.

How has search behaviour changed with AI and semantic understanding?

Search has moved from literal word matching to understanding meaning and intent. Modern search engines use language models, such as BERT, to interpret context and not just specific terms. AI systems go even further by analysing entire blocks of text and generating answers tailored to a user’s question.

In addition, systems now use vector embeddings to represent content and queries, capturing meaning rather than exact wording. Vector embeddings are mathematical representations that turn words, phrases and documents into numerical vectors that reflect their semantic relationships. Queries and content that are similar in meaning will be close together in this multidimensional space.

That is one of the key reasons search systems can now understand user intent more deeply than ever before.

What are vector embeddings and why do they matter for search?

Vector embeddings are a way to translate text into numerical values that capture meaning. Instead of looking for keywords as text strings, AI systems convert both user queries and content into vectors. They then measure how close those vectors are to assess relevance.

This means that if a user asks a question in natural language, the search system can find content that is conceptually closest to that question, even if the exact words do not match. For example, content that answers how to choose a supportive office chair for lower back pain could be considered relevant even if it does not use the exact keywords from the query.

It’s like organising books in a library by topic and theme rather than by title. Two books about gardening end up on the same shelf, even if one never uses the word “garden.”

For generative AI systems like ChatGPT, vector embeddings are used not just for retrieval but for context when generating responses. This process changes how visibility and optimisation work in the future of search.

Does this mean keywords are irrelevant?

No. Keywords are still useful because they tell us what language users use and what demand exists. They remain valuable for guiding topic selection, understanding intent and shaping overall strategy.

What has changed is that keywords are no longer the sole measure of relevance. Search engines and AI systems now consider semantic similarity, context and meaning first. That means content can still rank or be referenced even if it does not contain an exact match to a query.

Why should content be organised around meaning rather than exact phrases?

Search engines today rely on understanding topics, not just phrases. Creating content that answers real user problems, is easy to interpret and is structured clearly increases the likelihood that both traditional search and AI systems will find and surface it.

Using vector embeddings as part of your strategy means focusing on semantic relevance, covering all facets of a topic so that the content as a whole aligns with user intent. This could include answering common questions, providing clear definitions and grouping related ideas into logical sections.

Because embeddings map meaning rather than single words, your content does not need to force a keyword repeatedly. Instead, it should cover the core concept thoroughly, naturally including related terms and phrases that reflect real language patterns.

Should SEO strategies change because of AI search?

The evolution of search means SEO strategies should now blend traditional optimisation with semantic and AI-focused approaches. Keyword research still matters, but should be part of a broader topic and intent strategy.

This includes:

• Researching long-form questions users ask
• Structuring content into clear, focused sections
• Using FAQs that mirror natural queries
• Ensuring content solves real problems clearly

These practices make content easier for both search engines and AI systems to understand and extract. In many cases, AI visibility may occur before a user even clicks a link.

When does keyword optimisation still matter?

Traditional keyword optimisation still matters for signals like meta titles, headings and schema. They help search engines and AI tools quickly identify the core topic of a page.

However, stuffing a keyword into text is no longer effective on its own. Instead, keywords should be used to inform context and guide semantic coverage, helping you answer questions users truly care about.

How SEO Has Evolved: Then vs. Now

Then: Traditional Keyword SEONow: AI & Semantic Search
Exact keyword matching determined rankingsMeaning and intent drive relevance
Keyword density was a ranking factorSemantic coverage and topic depth matter
Stuffing keywords into content was commonNatural language and user value win
Search engines read individual wordsAI systems understand context and relationships
One phrase = one page strategyComprehensive topic coverage across content
Success = ranking for specific termsSuccess = being the best answer to user questions
Optimise for search engine algorithmsOptimise for both search engines and AI tools
Meta tags and exact matches were criticalStructured, clear content that solves problems is critical

How Do You Win in Both Google and AI Search?

Keywords are not dead. They remain an important part of understanding search demand and intent. But in the age of AI and vector-based relevance, their role has shifted.

Today, the focus should be on meaning and value. Content that truly answers the user’s question and covers a topic comprehensively will perform well in both traditional SEO and AI-driven search.

Keywords still guide that process. They help you understand what to cover, but the real goal is to be the best answer, not just the closest word match.

Ready to future-proof your SEO strategy?

If you want your brand to appear not just in rankings but inside AI-generated answers too, you need more than keywords alone.

At Pod Digital, we combine SEO, content strategy and AI optimisation to help businesses increase visibility, traffic and conversions across both Google and AI platforms. Speak to our team today about building an AI-ready SEO strategy that actually drives results.