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What Is Topical Authority in SEO?

Simon Kelly
What Is Topical Authority in SEO?

If you’re investing in SEO but not seeing results, you may be missing a key ingredient: topical authority.

Topical authority is the “depth of expertise” search engines attribute to your website on a given subject.

It’s not about posting more blogs, it’s about creating content with enough depth to demonstrate your expertise.

Why it matters:

  • Strong topical authority helps you rank higher on Google
  • It increases your visibility in AI search results and AI overviews
  • It builds trust with both algorithms and potential clients

At SGD, we’ve seen this firsthand.

By building clusters of content around web design, SEO, and Google Ads, we’ve established authority that allows us to rank new articles in as little as 24 hours. Read how we did it.

  1. Define your focus: Pick topics tied directly to your services
  2. Map content clusters: Create pillar pages supported by sub-articles
  3. Publish high-quality, expert-led content
  4. Link internally: Show depth and structure for both users and Google
  5. Showcase authority signals: Use case studies, reviews, and certifications.
  6. Maintain and update: Refresh your content regularly with new data (yes, updating old content helps!)
  7. Measure: Track impressions, rankings and traffic in GA4 and Google Search Console

Key takeaway: Topical authority isn’t about volume of content. It’s about relevance, quality, and proving expertise.

Need help building your topic authority to grow your SEO? Get started with an SEO Assessment.

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Author

Simon Kelly

Simon Kelly

Simon Kelly is the CEO and Head of Growth at Seriously Good Design. Simon started his first web design agency in 2009 which he merged with the SGD team in 2023. With a strong background in digital strategy and a history of working with fast-growing Australian companies, including CyberCX, Envato and Agency Mavericks, he's passionate about using ethical digital marketing that delivers business value. Simon's experience includes coaching digital agencies, running digital marketing workshops, driving growth and excellence within the SGD team.

Read more posts by Simon Kelly

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