What to expect in this guide
In this guide, you’ll discover what topical relevance actually means, how Google evaluates it, and why focused sites with fewer pages often outperform those with sprawling content libraries.
Every month, over 5.4 million new websites launch, joining the billions already competing for attention. AI-powered content mills are flooding search results with mediocre pages at a scale never seen before.
In fact… 97% of websites receive zero organic traffic, and only 0.21% of pages ever reach Google’s first page!
The old strategy of publishing as much as possible and hoping something sticks no longer works. Google has made it clear through multiple algorithm updates that it’s prioritising helpful, people-first content from sites that demonstrate genuine expertise in specific subject areas.
This is where topical relevance becomes your competitive advantage.
What does topical relevance mean?
Topical relevance is your site’s demonstrated expertise in a specific subject area. It’s not just about having content on a topic – it’s about proving to Google that you’re a trusted, comprehensive resource worthy of ranking.
Think of it this way: would you trust medical advice from a website that also publishes recipes, travel guides and cryptocurrency tips? Probably not.
Google thinks the same way. Sites that maintain a narrow, focused expertise consistently outperform those that spread themselves thin across multiple unrelated topics.
Why Google cares about topical relevance
Google’s mission is to deliver the most helpful, reliable information to searchers. To accomplish this at scale, its algorithms need ways to quickly assess which sites are genuine authorities on specific subjects.
Google evaluates topical relevance through several interconnected signals:
⬇️ Content depth on core topics: How comprehensively do you cover your main subject areas? Do you have content that addresses beginner questions, intermediate concerns and advanced topics? Or do you just scratch the surface with generic listicles?
🔗 Internal linking structure: How your pages connect to each other tells Google which topics are central to your site and how different pieces of content relate to one another. A well-structured site creates clear topical clusters that reinforce your expertise.
🤝 Semantic relationships between pages: Google’s algorithms understand that certain topics naturally connect. When your content demonstrates these relationships authentically, it signals genuine subject knowledge rather than keyword stuffing.
⭐️ Consistent quality signals: Sites that maintain high standards across all their content on a topic build trust. One poorly researched article can undermine the credibility of your entire site.
The reality check? More content doesn’t equal more traffic
This is perhaps the hardest truth for content marketers to accept – more pages don’t automatically mean better rankings.
A site with 50 highly relevant, thoroughly researched pages will likely outrank a site with 500 mediocre ones. Quality and relevance trump quantity every single time.
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Did You Know? Most websites have 30% to 50% of pages that hurt their overall performance more than they help. These pages dilute topical focus, waste crawl budget, and confuse Google about what the site actually specialises in.
How do sites lose topical focus?
Topical drift occurs gradually, often unnoticed until it becomes a serious problem. It typically occurs when:
You’ve rebranded or changed positioning
Your content library reflects what you used to do, not what you do now. Those old blog posts about services you no longer offer are actively harming your current positioning.
You got “content happy”
During a period of aggressive content production, you published anything that might drive traffic, regardless of whether it aligned with your core expertise.
Traffic has plateaued despite new content
You keep publishing, but rankings aren’t improving. This often indicates that new content is being evaluated in the context of existing low-quality or off-topic pages.
You’ve merged with another site
Combining two websites often creates a confused topical identity that satisfies neither audience well.
Your site has grown without regular reviews
Over months and years, content accumulates. Without periodic audits, outdated, irrelevant or low-performing pages pile up, weakening your site’s overall authority.
How to keep Google happy with helpful content
Google’s shift towards rewarding helpful content isn’t subtle. The search engine now explicitly favours content that:
➡️ Is people-first
➡️ Demonstrates topical expertise
➡️ Comes from sites with a clear subject focus
➡️ Avoids the telltale signs of content created primarily for search engines.
Equally important is what Google now actively penalises: low-quality content, high volumes of thin pages and – crucially – sites without a clear topical focus.
This means topical relevance is as important as ever. Building it requires strategic thinking about what you truly specialise in and the discipline to maintain that focus even when tempting keyword opportunities arise in unrelated areas.
In the following guides, we’ll show you exactly how to assess your site’s topical relevance, identify content that’s undermining your authority and build a focused content strategy that drives sustainable organic growth.
The work isn’t always easy – sometimes it means deleting pages you worked hard to create – but the results speak for themselves.
Next in the series: Proof that topical relevance works ✔️
