Keyword Clustering Tool

Ashkar Gomez
11min read
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Google learns and improves with each major release. That’s why it’s always crucial for Search Engine Optimizations (SEOs) to be aware of industry standards. The same goes for their content niches and keyword groups.

You may save time, produce higher-quality content, and boost site visits with keyword-grouping tools. The keyword clustering tools make the content ranks for more terms, rank faster, and produce more in-depth blogs that people read.

The outcomes have been favorable. This article will concisely introduce keyword clustering, discussing its significance and outlining the finest tools available.

What Is Keyword Clustering?

The process of collecting related keywords into clusters or groups is called keyword clustering, and it is a fundamental SEO practice.

Among these advantages is an increase in the possibility of generating more organic traffic, a boost in user engagement, and an improvement in the content’s relevance.

It’s important to keep these factors in mind when clustering keywords:

  • Create a thorough list of relevant keywords with the help of tools like Google’s Keyword Planner and SEMrush.
  • Put related terms and phrases into groups and ensure each group is dedicated to a single topic.
  • Improve your text’s readability and visual attractiveness by including headings, subheadings, bullet points, and photos.
  • Focus on optimizing each piece of content for a single keyword or topic, and use secondary keywords where appropriate to increase the page’s overall relevancy.

Businesses and website owners can use keyword clustering to produce optimized content for search engines and users to their target audience. As a result, they may see increased traffic and sales as their search engine results and online exposure grow.

Best Keyword Clustering Tools

1. Keyword Insights

Keyword Insights

Keyword Insights is a content briefing and keyword grouping tool powered by artificial intelligence. This pairing is highly rational for producing high-quality works of art.

The AI briefing tool makes it easy to create an outline; just upload your keywords, and it will automatically categorize them. The keyword research, competitor analysis, and rewriting of content won’t take up much time.

The “done for you” option in Keyword Insights is unique among similar products and guarantees top-quality results. It’s obvious why they won Product Hunt’s daily prize.


  • Keyword Insights is a tool for market research that gathers information about competitors.
  • It helps you find popular and trending keywords in your industry.
  • It gives you information about each keyword’s number of searches, competition, and trends.
  • It helps to improve SEO by optimizing content for certain keywords.
  • It tracks keyword rankings and performance.
  • Users can keep an eye on the keywords and performance of their competitors.

2. Key Clusters

Key Clusters

Key Clusters may use live data from Google to form subject clusters in just a few minutes. It’s one of the easiest and most clear methods available.

You may perform cluster analysis similarly by exporting a file from your keyword research tools like Ahrefs or Semrush.

Key Clusters then generates an understandable Excel file that accurately groups keywords into clusters. From this point, it is much simpler to generate pertinent content.

Key Clusters has a perfect rating on Capterra, which is expected given the company’s price structure. They use a credit system where you can add as many credits as needed.

The fact that the other tools only offer monthly subscriptions doesn’t make any sense. SEOs usually run a lot of keywords at once before they start making content.


  • Key clusters set up related keywords together in buckets or themes.
  • Each cluster is based on a different theme or topic.
  • Clusters help make your content more relevant. They also make your users more engaged and give them a better experience.
  • Clustering keywords can help your site rank higher in search engines and attract more visitors.

3. Keyword Cupid

Keyword Cupid

One of the most well-known keyword clustering tools is called Keyword Cupid. The program facilitates the creation of content silos from extensive data inputs (i.e., keywords).

With Keyword Cupid, you can reverse-engineer Google’s knowledge graph in real-time using neural network models. There are positive reviews about this book.

The mind map generator is particularly useful; you can learn best through visuals. Keyword Cupid is an excellent choice if you need a keyword research and clustering tool that relies on machine learning to generate accurate results.


  • Keyword Cupid is a tool used to group keywords.
  • It can automatically put together groups of keywords that are similar.
  • This helps to optimize content around the main keyword or theme.
  • It can save a lot of time and work during keyword clustering.
  • It can make your content more relevant and boost its search engine rankings.

4. SE Ranking

SE Ranking 2

When it comes to keyword research, SE Ranking is one of the best SEO tools available. The “Keyword Grouper,” a form of clustering software, is an integral part of the system.

It aids in keyword segmentation and SEO architecture planning, so it’s a great place to start.

In addition to suggesting alternative keywords, Keyword Grouper also provides ideas for related terms, synonyms, and semantic variants.

You can create the most in-depth content for the same useful purpose. This is one of the main reasons why the SE Ranking was reduced.


  • SE Ranking is an SEO tool for small businesses and agencies that does everything.
  • It offers full analysis of a website and suggestions for improving it.
  • It has tools for both free and paid keyword research and tracking.
  • It offers backlink analysis and research on competitors.
  • It has an easy-to-use setup and a user-friendly interface.
  • It offers keyword tracking based on tags and tracking of keyword rankings.
  • It offers detailed rankings, traffic, and performance reports and analytics.

5. Cluster AI

Cluster AI

Cluster AI tool can cut your keyword research time by as much as 90%. It is one of the several products that comprise the Content Distribution package, including Workello and the Content Operations Framework.

Cluster AI has the firm belief that most people conduct keyword research improperly. After your keyword tool is connected, Cluster AI will handle the rest (such as Ahrefs, Moz, Search Console, etc.).

The case studies are particularly useful. The following three prominent case studies demonstrate the tool’s usefulness after 12 months. The evidence is strong.


  • You can upload a maximum of 25,000 keywords to Cluster AI.
  • The larger the list, the better the results this will give.
  • It uses information from search engines to decide which keywords to use by crawling and getting the top 10 websites for each keyword.
  • It compares the number of pages that rank for each set of keywords to the number of pages that rank for each other.
  • Cluster AI suggests creating a single page to rank for a group of keywords when it detects three or more pages already ranking for those keywords.

6. ZenBrief


You may save time and effort using Zenbrief, an AI-powered writing tool. This tool investigates your competition using the same natural language processing (NLP) that Google employs. This resource provides trustworthy recommendations for improvements.

Since it costs nothing extra, it’s up with the top keyword clustering tools. All you have to do to use the clustering tool is copy and paste your keywords into the text box provided.

The results are clean, intuitive clusters and subgroups. You should now have a good idea of where to start when writing your blogs.


  • ZenBrief advises on creating a content strategy and figuring out who your audience is.
  • It offers keyword research and analysis tools to help content briefs be more SEO-friendly.
  • It offers tools for measuring the success of content campaigns and keeping track of how well they are doing.
  • It gives templates and examples for making content briefs that work.
  • It offers a simple setup and a user-friendly interface.

7. Contadu


Contadu is a European SaaS app that offers natural language processing (NLP) suggestions to enhance your content. Semantic keyword suggestions are naturally included.

Although there isn’t a specialized keyword clustering tool in the product suite, two are available at no cost. The first is the keyword generator, which offers numerous term variants (best, new, top, etc.). The other is a program that groups and clusters keywords.

The term clustering tool is lightning fast. You can enter many keywords, and it sorts them into relevant categories almost instantly.


  • It offers a simple way to manage the content production workflow.
  • It allows team members and clients to work together on creating content.
  • It offers an in-built content editor with different options for formatting and styling.
  • It includes library stock images and videos that can be easily added to the content.
  • It also has a content calendar that can be used to help manage the publishing schedule.

8. Surfer SEO

Surfer SEO

Regarding artificial intelligence (AI) writing and SEO technologies, Surfer SEO is among the best and most often used. Compared to the other options here, the term clustering tool is outstanding.

In addition to clustering, the program also aggregates keyword volume and difficulty and suggests additional semantics that might be added to these groups. You can now start making content that has a better shot at ranking.


  • It has search and analysis tools for keywords.
  • It offers suggestions and advice for optimizing a page.
  • It offers help with content analysis and optimization. It has tools for analyzing competitors and comparing them.
  • It has a built-in content editor with options for formatting and style.
  • It offers a site audit feature to find technical problems and ways to improve things.
  • It offers a simple setup and a user-friendly interface.


In conclusion, keyword clustering is crucial for SEO, and using a trustworthy keyword clustering tool can greatly enhance the efficiency and efficacy of this process.

Grouping related keywords in Google Keyword Planner, SEMrush, Ahrefs, or any other accessible choices will help you optimize your content and attract more visitors to your website.

In this difficult and time-consuming world of SEO, businesses and website owners can benefit greatly from using a keyword clustering tool.

Frequently Asked Questions

How does clustering differ from topic modeling?

Clustering is a document classification approach using similarity measures to divide documents into subsets. Topic modeling aims to unearth hidden categories that characterize a given set of texts.

What steps should I take to build a cluster?

The five stages of content cluster development are search engine optimization (SEO) investigation, selection of an umbrella theme, development of article topics within the cluster, generation of high-quality long-form articles, and implementation of an internal linking strategy.

Should I use a lot of SEO keywords on each page?

Each page should focus on a single primary keyword. Focusing on several keywords on a single page is acceptable, but you should still pick one as the page’s major focus.

What does keyword clustering mean?

You can improve your website’s search engine rankings by using “keyword clustering,” which groups related terms together.

Ashkar Gomez

Ashkar Gomez

Ashkar Gomez is the Founder of 7 Eagles (a Growth Marketing & SEO Company). Ashkar started his career as a Sales Rep in 2013 and later shifted his career to SEO in 2014. He is one of the leading SEO experts in the industry with 8+ years of experience. He has worked on 200+ projects across 20+ industries in the United States, Canada, the United Kingdom, UAE, Australia, South Africa, and India. Besides SEO and Digital Marketing, he is passionate about Data Analytics, Personal Financial Planning, and Content Writing.

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