The Starting Point for SEO Research

Every successful content strategy starts with a short list of simple words. Before I ever open a keyword research tool, I write down a handful of phrases that describe what my business does or what my audience searches for. Those phrases are seed keywords, and they do more work than most marketers realize.

In this guide, I will walk through what seed keywords are, why they matter, exactly how to find them, the best tools to use, and how to turn a seed list into a full content plan.

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What Are Seed Keywords?

Seed keywords are broad, short phrases (typically one or two words) that represent the core topics your business operates in. They are the starting point for keyword research, not the finish line. Think of them as the seeds you plant before a topic cluster grows around them.

For example, if you run a project management SaaS, your seed keywords might be “project management,” “task tracking,” and “team collaboration.” From each of those seeds, you can grow dozens of long-tail keywords, supporting blog posts, and pillar pages.

Think of seed words as the simplest, most direct description of a topic your audience cares about. They carry broad intent and high search volume, which is why they serve as anchors for the rest of your strategy.

Pro Tip: Don’t confuse seed keywords with target keywords. Seed keywords are the raw material. Target keywords are the specific, refined phrases you actually optimize each page around.

I’ve found that teams who skip the seed keyword phase tend to build scattered content libraries with no clear thematic structure. Defining the seeds first aligns writers, strategists, and subject matter experts before anyone writes a single word.

Why Seed Keywords Matter for Content Strategy

Seed keywords form the foundation of topic clusters. A topic cluster typically includes one pillar page that targets a broad theme and multiple supporting pages that address related long-tail queries. Without a clear seed keyword to anchor the pillar, the cluster has no center of gravity.

Here is why a strong seed keyword set improves your entire program:

Reduces the blank-page problem. A strong seed keyword set gives writers and strategists a defined universe to work within. Instead of brainstorming from nothing, the team starts with a map.
Improves content planning consistency. When everyone agrees on five seed keywords, editorial calendars, content audits, and gap analyses all use the same vocabulary.
Connects you to buyer intent. Seed keywords help generate long-tail keywords, which express more specific search intent. Long-tail keywords that express more specific search intent than seed keywords are often easier to rank for and convert better.
Supports scalable organic growth. A well-chosen seed grows into dozens of rankable pages. One seed keyword can become your next quarter of content.

I think about it this way: if my content strategy were a tree, seed keywords are the root system. You can see the leaves (published posts), but the roots determine what can actually grow. For more on how buyer journey keywords connect to this model, HubSpot has a useful breakdown of how intent changes at each stage.

How to Find Seed Keywords

Finding seed keywords is part research, part listening. The best seeds come from understanding how your customers actually talk, not just how you describe your product internally. Here is the process I use.

Step 1: Start with what you know.

Write down five to ten phrases that describe your business from your customer’s point of view. Not your marketing tagline. Not your internal jargon. What would someone type into Google at 11 p.m. when they have the problem your product solves?

If you sell accounting software to freelancers, your customer is not searching “financial management SaaS.” They are searching “how to invoice clients” or “freelance tax tips.” Start there.

Pro Tip: Ask your sales team what phrases prospects use in discovery calls. That vocabulary is a great foundation for seed keyword research.

Step 2: Mine first-party data.

First-party data includes CRM notes, sales call transcripts, chat logs, support tickets, and on-site search queries. These sources reveal the exact words your buyers use before they become customers.

Customer language helps identify seed keywords that match real buyer vocabulary. I’ve pulled seed lists directly from support ticket subjects and discovered entire content gaps the team never knew existed.

Check your site search logs if your site has an internal search. Every query is a data point about what visitors could not find. Those are seeds.

Step 3: Analyze competitor topics.

Look at what your top competitors are ranking for and writing about. You are not copying them, you are mapping the landscape. Tools like Ahrefs and Semrush let you see which broad topic categories drive the most traffic to a competitor domain. For a deeper look at identifying competitor traffic patterns, HubSpot’s guide covers the best approaches.

Step 4: Use Google’s own suggestions.

Type a broad topic into Google and pay attention to autocomplete suggestions, “People also ask” boxes, and related searches at the bottom of the page. These are seeds handed to you by the largest search dataset in the world.

I also look at SERP features as clues. If a topic consistently triggers featured snippets or image packs, the query has well-defined informational intent — which makes it a strong seed candidate.

Step 5: Validate with search volume data.

A seed keyword should have enough search volume to justify building a cluster around it, but not so much that ranking is impossible for your domain authority. Use a keyword tool to check monthly search volume and keyword difficulty for each candidate seed.

The goal at this stage is not to find the highest-volume terms. It is to find terms where you can realistically compete and where there is room to build supporting content. Understanding what keywords your potential customers are using is the foundation for making this judgment well.

Step 6: Group seeds into themes.

Once you have a list of 15 to 30 candidate seeds, look for patterns. Words that belong to the same buyer problem or product category should be grouped together. Each group becomes a potential topic cluster.

For example, seeds like “content calendar,” “editorial planning,” and “blog scheduling” all belong to the same cluster. You don’t need three separate pillar pages — you need one strong pillar and several supporting posts, each targeting a variation.

Step 7: Pressure-Test with AI.

I run my shortlisted seeds through a large language model and ask it to generate related queries, common questions, and adjacent topics. This surfaces angles I had not considered and helps identify which seeds have the richest long-tail potential.

This is not about outsourcing your strategy to AI. It is about using AI to stress-test your list and catch blind spots before you commit to a quarter of content.

Best Seed Keyword Tools

The right seed keywords tool depends on where you are in the process. Some tools are better for initial ideation; others shine for expansion, clustering, or validation. Here is a comparison of the best options.

1. Google Search Console

If your site is already live, Search Console shows you what queries are bringing people to your pages. Filtering by impressions rather than clicks reveals topics you are close to ranking for but have not fully addressed. Those near-miss queries are excellent seed candidates.

Best for: Teams with existing traffic who want to expand around proven themes.

2. Ahrefs Keywords Explorer

Ahrefs lets you enter a broad term and immediately see keyword difficulty, search volume, click potential, and a list of related terms grouped by parent topic. I use it to validate seeds and quickly estimate cluster size before committing resources.

For context on helpful keyword identification tools, HubSpot has covered several solid options worth bookmarking.

What we like: The “parent topic” feature in Ahrefs automatically groups related keywords, making cluster planning much faster.

6. HubSpot’s SEO and Content Tools

HubSpot’s AI content tools within Content Hub connect keyword research directly to your content creation workflow. You can track topic cluster health, identify content gaps, and publish without switching between a dozen tabs. For teams already in HubSpot, this integration reduces the friction between seed research and actual publishing.

Best for: HubSpot users who want keyword research and content production in one place.

If you’re looking for a keyword research template to help you track based on business goals and opportunities, click here to use it for free.

How to Build Your Content Plan From Seed Keywords

Having a list of seed keywords is not a content plan. It is the raw material. Here is how I turn seeds into a structured, publishable plan.

1. Choose three to five anchor seeds.

Don’t try to plant all your seeds at once. Pick three to five that represent your most important buyer problems or product categories. These become your pillar page topics. Each pillar page targets a broad theme related to multiple long-tail keywords.

For reference, long-tail keywords are specific, lower-volume phrases that branch off your seed. They are usually three or more words and express a defined intent. Long-tail keywords express more specific search intent than seed keywords, which is why supporting pages targeting them tend to convert better than broad pillar pages.

2. Build a cluster map for each seed.

For each anchor seed, generate a list of 10 to 20 related long-tail keywords using your chosen tool.

These become the supporting pages in your cluster. A topic cluster typically includes one pillar page and multiple supporting pages, each targeting a specific long-tail variation. Look at the following example: if your business sells men’s jeans, think of all the queries or thoughts customers have when they visit your site.

Source

Coming up with long-tail keywords is easier than you think when you consider all the different ways people can navigate a cluster map.

3. Assign intent to every cluster page.

Not every keyword in a cluster belongs in a blog post. Some belong in landing pages, product comparison pages, or FAQ entries.

Sorting by search intent before writing prevents creating content that ranks but never converts. Consider dividing yours like the following categories:

Informational intent: educational posts and how-to guides.
Commercial intent: comparison and review content.
Transactional intent: product and trial pages.

4. Map internal links between cluster pages.

Pillar pages should link to every supporting page. Supporting pages should link back to the pillar. This internal link structure signals to search engines that the cluster is related and that the pillar page is the authoritative source on the topic.

For guidance on tracking and improving your SEO strategy once your clusters are live, HubSpot’s breakdown walks through the key metrics to watch.

5. Set a publishing cadence and governance process.

A content plan isn’t useful if it lives in a spreadsheet no one updates.

Assign ownership to each cluster, set a publishing cadence your team can sustain, and schedule quarterly reviews to audit performance and refresh seeds that have shifted in demand.

Pro Tip: Brand consistency across content compounds over time. Teams that maintain consistent messaging and topic ownership across their clusters tend to build authority faster than those that publish sporadically across broad topic areas.

6. Track rankings at the cluster level.

Don’t just monitor individual keyword rankings — track the cluster as a whole. If your pillar page is ranking but supporting pages are not being indexed, that is a signal of an internal link structure or crawl budget issue. If supporting pages rank but the pillar does not, you may need to strengthen your pillar content or consolidate weaker posts.

Pro Tip: Use the Early-Signs Guide to AEO from HubSpot to understand how answer-focused content optimization affects visibility in AI-powered search results. Seed keywords that trigger featured snippets or AI Overviews are worth prioritizing.