Keyword grouping (also known as keyword clustering) is the process of sorting and organizing keywords into meaningful clusters of closely related terms. A grouping tool will typically identify a primary keyword and a set of related keywords that share a common meaning, theme, or intent.
Modern tools achieve this automatically by analyzing the keywords: some use simple semantic similarity (grouping keywords that contain similar words or phrases), while more advanced tools compare search engine results or use machine learning to cluster keywords by context.
In essence, if multiple search terms yield similar results or address the same user need, they get grouped together. The result is a set of keyword groups, each representing a distinct topic or search intent, which you can then target with focused content or ad campaigns.
Keyword grouping is very important for SEO because it helps you cover a topic comprehensively without creating competing or redundant content. By grouping related search queries together, you can optimize a single page (or a cluster of pages) for a broad range of similar keywords. This improves your organic reach – one well-structured page can rank for many related terms – and prevents keyword cannibalization (which is when multiple pages on your site unintentionally target the same keyword and hurt each other’s rankings).
Grouping keywords into thematic clusters allows you to create a clear content structure: a main "pillar" page covering the core topic, supported by sub-pages or sections for each subgroup of related keywords. This approach signals to search engines that your site provides in-depth coverage of the subject, thereby increasing your topical authority and improving rankings.
In Google Ads, proper keyword grouping is key to creating high-performing campaigns. When you group keywords into tightly knit ad groups, all the keywords in each group share a close theme or intent.
This means you can write highly relevant ads that speak directly to all the terms in that group, which improves your click-through rate (CTR) and Quality Score.
Higher Quality Scores can lead to lower costs and better ad positions. On the other hand, if an ad group contains too many loosely related keywords, your ads will have to be generic and won’t match any of them well – resulting in lower CTR and poorer performance. By organizing keywords into focused groups, you ensure each ad group triggers ads that are tailored to those search terms.
To create a topic cluster using a keyword grouping tool, start by inputting a broad list of keywords related to your topic. The tool will automatically cluster these keywords into groups of related terms.
Each group essentially represents a sub-topic of your main topic. Once you have these groups, you can plan your content accordingly: typically, you would create a comprehensive pillar page that covers the main topic broadly, and then create separate cluster pages or sections that target each specific sub-topic (each cluster of keywords).
Interlink the pillar and cluster pages to create a clear content structure that search engines can understand.
It’s generally recommended to keep the number of keywords per Google Ads ad group relatively low – often around 10 to 20 keywords at most.
The exact number isn’t as important as the fact that all the keywords in an ad group should be closely related to one another.
If you can’t come up with one ad that feels highly relevant to all the keywords in an ad group, then those keywords probably should be split into different groups. Smaller, well-targeted groups make it easier to write ads and usually result in higher Quality Scores.
Grouping keywords by search intent means organizing your keywords based on the underlying goal or motivation of the person searching. Different search queries have different intents – for example, informational, navigational, commercial, or transactional.
By grouping keywords that share the same intent, you can create content or ads that exactly match what those users are looking for. Many advanced keyword tools, like Tenscores’ Regrouper, use machine learning to cluster keywords by intent automatically.
Tenscores offers two keyword grouping solutions: a free tool and a paid tool called The Regrouper. The free keyword grouping tool is a quick, no-frills online utility for clustering keywords. You can paste up to a certain number of keywords and it will instantly group them into clusters of related terms. It’s ideal for quick analyses or smaller projects – for example, getting a sense of how your keyword list breaks down into topics. The free tool does the grouping and allows you to copy or download the groups, but it doesn’t integrate with Google Ads or provide additional campaign features.
The Regrouper is the full-fledged keyword grouping solution designed for Google Ads power users. It includes everything the free tool does (like fast, automatic clustering), but adds several layers of advanced functionality tailored to PPC campaigns. Regrouper uses advanced algorithms – including Google’s machine learning – to group keywords by meaning and search intent, producing very tightly-knit keyword groups that are optimal for ad targeting. It then can automatically create ad group structures out of those clusters.
In practice, this means Regrouper will take an existing ad group, split it into intent-based ad groups, and even auto-generate ads for each group. It might create, for example, two responsive search ads per group populated with the group’s keywords (often using dynamic keyword insertion to ensure the ad text mirrors the search terms). This dramatically speeds up the process of building relevant ads for each cluster.
Finally, the Regrouper lets you push the new groups and ads directly to your Google Ads account (via the Google Ads API). You can basically restructure a campaign in Tenscores and then deploy it live to your Google Ads with a click – no need to download and re-upload anything. (For those who prefer offline editing, the Regrouper also supports exporting the grouped keywords and ads to CSV, so you can use Google Ads Editor or share the file as needed.)