What is a topic cluster? 7 steps to build one

When you invest in promote the brand but search traffic stays low and revenue doesn't move, improving your website content is the thing to do now. Topic Cluster is the trend that helps produce quality content and attract users. So What is a Topic Cluster? Why is the topic cluster so important? Read on to find out, in this article from MONA Media today.

What is a Topic Cluster?

Topic Cluster is a group of articles or pages that link to each other and focus on one subject, rather than optimizing for individual keywords. SEO term is also called "pillar and cluster", a concept HubSpot described back in 2017. Using topic clusters in SEO helps you build your content strategy and grow your brand more effectively.

Examples of topic clusters: Content Marketing, Marketing Online,…

Topic cluster structure

Topic Cluster is built on 3 main components: the pillar page, the cluster content and internal links. Each plays its own role, and together they form a complete content system that delivers the most value to both users and SEO.

Pillar page

Pillar Page, is the core piece of content that gives readers a broad view of a large subject. It is the navigation hub that connects every related article in the same cluster. Acting as an overview map, the pillar page points readers to more detailed sub-articles and ties your content tightly together.

Cluster Content

Cluster content, or "cluster" pages (Cluster Content) are in-depth articles that go deep into one specific aspect of the main topic covered on the pillar page. They usually give detailed information and answer specific questions about the central topic, while enriching the pillar page and your whole website. That gives your site more varied content, better ranking potential and more readers.

Internal link

Internal links (Internal Link) plays an important role in connecting the cluster content to each other and pointing them all to the pillar page, forming a logical, coherent body of information.

Internal links do more than improve the user experience. They keep visitors on your site longer by guiding them to related content. They also help search engines understand your site structure, which improves crawling and ranking.

To make the topic cluster and its structure clearer, here is an example from MONA on the topic "SEO tips":

• Pillar PagePillar page: a roundup of basic SEO tips
• Cluster content: SEO tips on keywords, on-page SEO, off-page SEO, technical website issues and more

Topic cluster vs. silo: the differences

Why do you need topic clusters?

Building topic clusters solves problems the older approach can't. If you keep working the old way, you will end up with sub-pages that duplicate each other and a website whose overall content is unclear and shallow. That is why the topic cluster method appeared: to improve the user experience and the quality of the website.

Benefits of topic clusters for users

When people visit a website, most want to find an answer quickly and accurately. That is why topic clusters work like a secret weapon for a better user experience:

• Fast, complete access to information: Users find everything they need in one well-organized set of articles.
• Answers to their questions: From the first visit, their questions and problems are answered clearly and in detail, matching their search intent.
• Broader knowledge and a clearer view of your products and services: Beyond giving information, this method helps users learn more and understand what you offer, which raises the chance of turning them into leads.

Benefits for the website

Since Google's Hummingbird update, Google has changed how it evaluates and ranks websites. It no longer relies on single keywords alone, and now looks at the context and overall meaning of search queries. That is why topic clusters are the best way to improve your website content, for these reasons:

• Reorganizes your content and site structure: Topic clusters let you rearrange all of your content and website structure in a logical, systematic way that users and search engines understand easily.
• Builds a trusted authority site: You build cluster content around one main subject (the pillar page), which helps search engines see your website as a reliable, authoritative source in that field.
• Raises rankings and traffic: It helps your site rank high not just for one keyword but for many keywords related to the topic, bringing in more traffic that stays steady and raising your chances of appearing in search results.
• Drives revenue growth: Internal links send users to your main products and services, moving them closer to the next steps in the customer journey and boosting your revenue.

Google judges a post by more than its text. It also looks at images, video and the overall experience. Quality content is one of the core factors behind a lasting Google ranking. Watch the video "4 Core Factors That Get SEO Website to the Top of Google" to learn how to optimize keywords naturally and properly and turn your content into a traffic magnet.

A 7-step guide to building a topic cluster

After learning what a topic cluster is, you may think building one will take a mountain of time and effort. It doesn't have to. You don't need to tear down and rebuild all your old content. Just follow the 7 basic steps below and you'll know how to apply topic clusters properly and effectively.

Step 1: Choose the topic you want to rank for

The first step in building a topic cluster is to define exactly which topic you want to rank for in search engines. This topic is the foundation for the content of your pillar page later.

When choosing a topic, keep these points in mind:

• The topic should be clear and directly related to your business or the main content of your website.
• The topic should be broad enough to write comprehensive articles on, so you can build the pillar page content fully.
• The topic should support 5 to 7 cluster articles, so you can build a connected content system.

*Example, using MONA's website in the field of content marketing. These articles could cover topics such as:

• How to write engaging content marketing
• Facebook ad content
• Content trends to expect in 2026
• How to create viral content
• SEO-ready content

Remember to choose at least 3 main topics to start. More importantly, these topics can be split into smaller topics, which makes the next steps easier.

Step 2: Research keywords

In topic cluster SEO, the focus is on optimizing content around a large topic rather than on individual keywords specific keywords, but that doesn't make keyword research unnecessary. On the contrary, understanding what users search for helps you build a stronger, more effective cluster. The keyword research process goes like this:

Analyze and list subtopics

To start, identify related subtopics by:

• Looking at competitors: Study how they organize content and find gaps you can use.
• Analyzing foreign websites: Learn from reputable sites in your field.
• Using your own expertise: Use your personal knowledge to add unique angles.

Run keyword research

Once you have a list of subtopics, it's time to go deeper with more detailed researching keywords . Do it like this:

• Enter the subtopics into keyword research tools, for example Ahrefs.
• Use the "Include" box to filter for keywords that contain the phrase you want, for example the keyword "SEO". The results will contain only related keywords.
• Export the data and filter it in Excel: keep only the important columns, such as Keyword, Volume and Parent Keyword.

This gives you an accurate, complete keyword list for building the cluster, so you don't miss any search need your users have.

Step 3: Group keywords by topic

This is where you start grouping keywords into related sets under the main topics. Each keyword group leads to specific content that fits users' search goals. Don't worry if you can't build every idea. What matters is choosing the topic clusters that fit your strategy best and are worth the most.

Step 4: Check the content already on your website

This is a key step that helps you make the most of your existing resources, saving time and budget while keeping your content strategy effective.

Note that if your website is new, you can skip this step and move on to the next. But if you already have a fair amount of content, be careful here so you don't miss any potential.

The review can go like this:

• Go through all the content published on your website, from the blog to service pages and anything else related.
• Sort each article into the subtopics you researched in the previous step.

When you finish sorting, ask yourself: "Does this article fit the topic and the goal I'm aiming for?" If yes, put it in the matching topic cluster right away. If not, edit it or add to it so it satisfies users' search intent.

Step 5: Write content for the pillar page and cluster content

With the basic groundwork done, it's time to write the detailed content for the pillar page and the cluster content to complete your topic cluster.

Content standards for the pillar page:

The pillar page is the center of the cluster, so it needs careful work. An ideal pillar page runs from 3,000 to 5,000 words, enough to cover all the topics that the cluster content will go into in more depth.

The pillar page doesn't go into detail on each issue. It works as a map, giving an overview of each piece of content in the cluster. Keep it coherent, easy to follow and engaging enough that readers want to explore the related articles.

Content standards for cluster content:

Cluster content are the extra "pieces" that go deeper and clarify each aspect of the pillar page. Each article should:

• Focus on solving one specific problem, so it gives readers real value.
• Be SEO-optimized, targeting a few clear keywords you want to rank for.
• Link closely to the pillar page content, keeping the whole cluster logical and consistent.
• Run 1,000 to 2,000 words, enough for detailed information without rambling.

A small tip: instead of starting with the pillar page, write the cluster articles first. Once they are done and you know each one well, it's easier to summarize them and write the pillar page with the full coverage it needs.

Step 6: Build the internal linking system

After you finish the pillar page and the cluster articles, the next important job is a sensible linking system. Make sure that:

• Every article in the cluster links not only to the pillar page but also to the other articles in the same cluster.
• The links work in both directions, meaning the pillar page also links back to each article in the cluster, forming a tight, logical network of links.

Step 7: Track and evaluate your metrics

For an SEO strategy to succeed, you can't skip regular tracking and review of your metrics. That is how you measure results and adjust in time.

With topic clusters, change usually doesn't happen right away. You normally need about 1 to 2 months to see clear results. At that point, start analyzing in detail: which pages or clusters are doing well, and which need more optimization to improve rankings.

These are the core factors to focus on:

• URL pages: Both the pillar page and the cluster content.
• Keyword: Review keyword performance for each page.
• Internal links: Check how the pages in the cluster link to each other.
• Outbound links: Review the outbound links on each page.

We hope this article gives you a clearer understanding of What is a Topic Cluster? You now know the steps to build an effective topic cluster for SEO and optimize your website. If you need a full SEO campaign to "rescue" your website, call MONA for advice and a SEO quote detailed plan.