If you want your content to be found on Google you must know how to do keyword research for SEO. Whether you are writing a blog post, building a website or creating product pages you need to understand what your audience is searching for. The right keywords help search engines know what your content is about and help you attract the right visitors.
If you are completely new to SEO, you can also read our detailed Beginner Guide to SEO 2025 to understand the foundation before diving deeper.
In this guide I will walk you through keyword research in a clear conversational way. You will get real examples, data from studies, step by step instructions and links to useful tools and resources.
Let’s begin.
Why Keyword Research Matters
Keyword research is the foundation of effective SEO. If you choose the wrong keywords you might end up writing content that no one is searching for. According to Ahrefs research more than 90 percent of pages get no organic traffic from Google because they are not targeting searchable keywords with traffic potential.
In simple terms keyword research helps with three things:
Understanding the importance of keywords in digital marketing will give you a clearer strategic direction before moving forward.
- Audience understanding. You learn the language your potential customers use.
- Content direction. You choose topics that people are actively searching for.
- Competitive advantage. You find gaps where competitors are weak.
Now we are going to walk through each step of how to do keyword research for SEO.
Step 1 Start with Seed Keywords
Seed keywords are the basic terms that are broad and related to your business or topic. For example if you are writing about bikes your seed keywords might be “best road bikes”, “mountain bikes” or “bike maintenance.”
Start by listing 10 to 20 seed keywords. These keywords are not what you will rank for exactly. They are the starting point to find more specific phrases people search for. If you want to go deeper into niche targeting, explore our guide on niche keyword research for more focused strategies.
Here are three ways to find seed keywords about how to do keyword research for SEO:
Look at Your Website
Check your own website for topics you already cover. What pages do you have that are driving traffic? What pages do you want to improve?
Brainstorm with Your Team
Talk to people who know your product or audience. Sales teams often know the questions potential customers ask most.
Use Tools
Tools like Google Search Console, Google Trends, and Answer the Public help find topics people are interested in.
- Google Search Console helps you see the actual terms people already use to find your site. You can start here: https search google com search-console/about
- Google Trends shows you keyword interest over time. https trends google com
- Answer the Public gives questions and phrases related to your keyword. https answerthepublic com
Once you have a list of seed keywords we move on to expanding them.
Step 2 Expand Keywords with Tools
Now that you have seed words let us expand them into real keyword ideas. Your goal is to get a list of hundreds of potential keywords you might target. You can also explore some of the best free tools for keyword research if you are working with a limited budget.
Here are popular keyword research tools:
| Tool | Free or Paid | Notes |
| Google Keyword Planner | Free | Great for search volume and competition data |
| Ahrefs Keywords Explorer | Paid | Strong competitive metrics |
| SEMrush Keyword Magic | Paid | Many filters and ideas |
| Moz Keyword Explorer | Paid | Good beginner friendly metrics |
| Ubersuggest | Limited free | Easy to use and affordable |
For beginners Google Keyword Planner is a good start. It is part of Google Ads but you do not need to run paid ads to use it.
Using Google Keyword Planner
- Go to Keyword Planner.
- Select Discover New Keywords.
- Enter your seed words.
- Click Get Results.
You will see columns like Avg. Monthly Searches and Competition. These help you pick good keywords.
What Do The Metrics Mean
Understanding the metrics helps you choose the right ones.
Search Volume
This is the average number of monthly searches a keyword gets. Higher volume means more potential traffic. But high volume often means more competition.
Competition
This shows how many advertisers bid on a keyword. It can be a rough guide to how hard it might be to rank organically.
Keyword Difficulty
Tools like Ahrefs and SEMrush calculate keyword difficulty. It is a score from 0 to 100 that estimates how hard it is to rank. Lower scores are easier to rank for.
Step 3 Understand Search Intent
Search intent is what a person is trying to achieve when they search. It is one of the most important parts of keyword research. If you do not match intent you will not satisfy Google or users. To better understand how Google interprets intent signals, read our detailed article on understanding human search intent.
There are four common types of intent:
- Informational. The user wants information. Example query: “what is SEO.”
- Commercial. The user is researching but not ready to buy. Example: “best SEO tools 2025.”
- Transactional. The user wants to take action or buy. Example: “buy SEO tool subscription.”
- Navigational. The user wants to go to a specific site. Example: “Moz SEO blog.”
If your content does not match intent you will get high bounce rates and low rankings.
Step 4 Organize Keywords by Topic and Intent
Now that you have hundreds of keyword ideas you need to group them. Clustering similar keywords helps plan content better.
For example:
Topic: Running Shoes
- Best running shoes for beginners (Informational)
- Running shoes for flat feet (Informational)
- Nike running shoes review (Commercial)
- Buy running shoes online (Transactional)
Group them so you know what type of pages to create. Informational keywords might be blog posts. Transactional ones might be product pages.
Step 5 Evaluate Keyword Difficulty
You do not want to waste time on keywords you cannot rank for. Tools like Ahrefs and SEMrush give keyword difficulty scores.
A general rule is:
- 0 to 29 difficulty Easy to rank
- 30 to 59 Moderate difficulty
- 60 plus Hard
If you have a new site focus on lower difficulty keywords first.
Step 6 Check Competitor Keywords
Looking at competitor keywords helps you discover topics you might have missed. For a structured approach, check our full guide on SEO competitor analysis.
Tools like Ahrefs and SEMrush let you enter a competitor URL and see what keywords they rank for.
For example in Ahrefs:
- Go to Site Explorer.
- Enter competitor URL.
- Click Organic Keywords.
You will see keywords they rank for. This gives you ideas to include in your strategy.
Step 7 Pick Primary and Secondary Keywords
From your list pick a primary keyword and a few related secondary keywords for each piece of content.
Primary keyword is the main focus. Secondary keywords are related terms you want to naturally include.
For example:
- Primary: how to do keyword research
- Secondary: keyword research steps, keyword research for beginners, best keyword tools
Secondary keywords help signal relevance to search engines.
Step 8 Create Content Around Keywords
Once you have your final list you need to create content that satisfies user intent.
Here are best practices for how to do keyword research for SEO:
- Use the primary keyword in the title.
- Use it in the first paragraph.
- Include secondary terms naturally in the body.
- Answer the questions users want answers to.
In a study by Backlinko they found that long content tends to perform better on Google. The average first page result content length is about 1447 words.
This does not mean every article must be 2000 words. It means in many competitive topics more depth helps.
Step 9 Track and Update Performance
Keyword research is not one time. You need to monitor what is working and what is not.
Use tools like:
- Google Analytics. To see traffic patterns.
- Google Search Console. To see which keywords drive clicks and impressions.
In Search Console go to Performance Report. You can see:
- Queries your site appears for.
- Click through rates.
- Average position.
By tracking these you can adjust your strategy. If a keyword is gaining impressions but low clicks you might need a better title and meta description.
Common Mistakes in Keyword Research
Let us cover mistakes beginners often make for how to do keyword research for SEO.
Ignoring Search Intent
Choosing high volume keywords with the wrong intent leads to no conversions.
For example a tutorial page ranking for a buy now keyword will have low conversions.
Targeting Only High Volume
High volume is good but often very competitive. Sometimes lower volume with high conversion intent is better.
Not Updating Research
Search trends change. Use Google Trends to see rising topics. For example interest in topics can shift quickly as new technology releases or news events happen.
Tools You Should Try
Here are tools to accelerate your keyword research:
Google Tools
- Google Keyword Planner Free and reliable for search volumes.
- Google Search Console Real data from your own site.
- Google Trends Shows interest over time.
Paid Tools
- Ahrefs Keywords Explorer Has data on volume, difficulty and gives hundreds of suggestions.
- SEMrush Keyword Magic Great filters and topic grouping.
- Moz Keyword Explorer Good for beginners.
- Ubersuggest Simple and affordable.
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