How to Do Keyword Research? A Step-by-Step Guide
The cornerstone of SEO efforts is keyword research. It's the process that determines which keywords you'll rank for, what content you'll produce, and which intents you'll address. Content produced without targeting the right keywords cannot gain visibility in search engines and won't drive traffic. As of 2026, AI-focused search results and AEO (Answer Engine Optimization) trends have also added a new dimension to keyword research. Now, the goal is not only to rank in traditional blue links but also to stand out as a source in AI answers.
In this guide, we will address step-by-step questions such as how to do keyword research, which tools to use, why long-tail keywords are important, and how to turn research results into content strategy.
What is Keyword Research?
Keyword research is the process of finding, analyzing, and evaluating the queries your target audience enters into search engines. The goal is not just to find high-volume keywords, but to identify keywords that align with your business goals, have a reasonable level of competition, and have a clear search intent.
Starting SEO work without this process is like setting sail without a compass. If you proceed without knowing what topics to create content on, which pages to optimize, and which intents to respond to, resource waste is inevitable.
Why is Keyword Research Mandatory?
Many businesses start content production by intuitively deciding what topics to write about. However, producing content for keywords with no search volume or excessively high competition is a waste of time and budget. Keyword research answers the following questions:
- What keywords are being searched for?
- What is the monthly search volume for these keywords?
- What is the competition level, and how difficult is it to rank?
- Is the search intent informational, navigational, or transactional?
- Which keywords align with your business goals?
Keyword Types
Starting research without understanding keyword types leads to misconceptions. There are three main types:
Head Keywords
These are single or two-word general phrases. Like "SEO", "web design", "dentist". They have high search volume but very high competition and low conversion rates. They are not accessible for new websites.
Body Keywords
These are more specific two-to-three-word phrases. Like "Ankara SEO agency", "implant prices". They have moderate search volume, reasonable competition, and high conversion potential. These keywords should be the main target for most businesses.
Long-tail Keywords
These are specific queries consisting of four or more words. Like "where to get a work entry health report in Ankara", "zirconium coating prices 2026". They have low search volume but low competition and high conversion rates. They are the most accessible category for new websites.long-tail keyword strategywe cover this topic in depth in our guide.
Keyword Research Steps
1. Understand Your Target Audience and Business Goals
Before diving into research tools, clarify who you are targeting and what you want to achieve. B2B or B2C? Local or national? Sales or brand awareness? The answers to these questions will determine which keywords you should focus on.
2. Identify Core Keywords
List the most fundamental service or product terms for your business. These core keywords are the starting point for all research. For example, for an OHS company, "occupational health", "OSGB", "risk assessment" could be core keywords.
3. Use Research Tools
Expand your core keywords with professional tools. The most commonly used tools are:
- Google Keyword Planner:Free, based on Google Ads data. Provides search volume and competition data.
- Ahrefs Keywords Explorer:Comprehensive data, difficulty score, click-through rate analysis. Paid but one of the most detailed tools for professional SEO.
- SEMrush:Powerful for competitor analysis and keyword gap identification.Ahrefs and SEMrush yield the most comprehensive results when used together.
- Google Search Suggestions: Google's autocomplete and "Related searches" section offer free intent data.
- AnswerThePublic:Visualizes question-based searches, valuable for generating FAQ-focused content.
4. Analyze Search Intent
Every keyword has an intent behind it.What is search intent determines whether your content will rank. There are four main types of intent:
- Informational: "What is", "how to" queries. Targeted with educational content.
- Navigational: Brand or site name queries. Direct landing pages are targeted.
- Transactional: "Price", "buy", "appointment" queries. Targeted with conversion-focused pages.
- Commercial Investigation: "Best", "comparison" queries. Targeted with review and comparison content.
5. Analyze Competition and Opportunity
Evaluate the competition level of the keywords you find. For new sites, starting with low-competition long-tail keywords instead of those with high-authority competitors is a smarter strategy. Also, identify keywords your competitors rank for but you haven't targeted yet — these are called "keyword gaps" and offer significant opportunities.
6. Prioritize Keywords
You can't target all keywords at once. Create a priority matrix based on search volume, competition, alignment with business goals, and content production feasibility. Start with low-competition, high-conversion-potential keywords first. Use the following criteria for prioritization:
- Business goal alignment:Is this keyword useful when you get rankings?
- Reachability:Is the competition level suitable for your site's authority?
- Conversion potential:Does traffic from this keyword convert into customers?
- Content gap:Is there existing content on the site about this topic?
AI Searches and Keyword Research
In 2026, AI search engines like Google AI Overviews, ChatGPT search, and Perplexity have added a new dimension to keyword research. While ranking for traditional blue links remains a goal, being cited as a source in AI responses has also become an important visibility channel.
To stand out in AI searches, implement these strategies:
- Focus on long-tail keywords in question format ('what is', 'how to', 'why does')
- Provide clear and concise definitions in content (the first paragraph is critical for AI summarization)
- Use structured data (schema markup)
- Strengthen EEAT signals (Expertise, Experience, Authoritativeness, Trustworthiness)
- Include data and statistics that can be cited as sources
This approach allows you to gain visibility in both traditional search results and AI overviews.GEO (Generative Engine Optimization)You can examine this topic in detail in our guide.
Keyword Grouping and Content Planning
Group the keywords you obtained from your research into topic clusters. Each cluster consists of a pillar page and sub-content linking to that page. This structure improves both user experience and search engines' understanding of your site.
For example, for the core keyword 'SEO':
- Pillar: 'What is SEO? Comprehensive Guide'
- Sub-content: 'Technical SEO Audit', 'Content SEO Strategy', 'Keyword Research'
The topic cluster model also provides an ideal framework for internal linking strategy. Sub-content links to the pillar page, and the pillar page links back to the sub-content. This internal link network distributes page authority and makes it easier for search engines to grasp the site structure.
When grouping, ensure that each cluster is clearly distinct from the others. Overlapping clusters lead to cannibalization — if two different pages on the same site compete for the same keyword, Google cannot decide which one to show, and the rankings of both pages drop.
Metrics Used in Keyword Research
Knowing the key metrics you'll encounter during research enables you to make informed decisions:
- Monthly Search Volume (MSV):Indicates how many times a keyword is searched per month. High volume isn't always good; intent match is more important.
- Keyword Difficulty Score (KD): Shows how difficult it is to rank for a keyword between 0-100. Ahrefs and SEMrush calculate with different algorithms.
- Click-Through Rate (CTR):It is the percentage of clicks when it appears in search results. Especially for informational queries, Google's direct answer boxes reduce the click-through rate.
- Cost Per Click (CPC): The amount paid for this keyword in Google Ads. High CPC indicates the commercial value of the keyword.
- Conversion Rate:It is the percentage of traffic from keywords that converts into customers. This is the most valuable metric for your business.
Metrics should be analyzed together rather than evaluated in isolation. A high-volume but low-CTR keyword might be less valuable than a low-volume but high-converting keyword.
Common Mistakes
- Focusing only on high-volume keywords
- Ignoring search intent
- Determining keywords without competitor analysis
- Don't underestimate long-tail keywords
- Not creating a content plan after creating a keyword list
- Missing out on local SEO opportunities
Keyword Research and SEO Strategy Integrity
Keyword research alone is not enough. SEO content strategy finds meaning when combined. What matters is not the words you find, but what you do with them. Your research results into a content calendar, page structure, and technical SEO audit integrate with.
Result
Keyword research is the most critical stage of SEO. When done correctly, it provides a content production roadmap, competitive advantage, and conversion potential. When done incorrectly or skipped, all SEO efforts go to waste. Identifying which keywords hold value for your business and producing strategic content around these keywords is the key to sustainable search visibility.
Frequently Asked Questions
How often should keyword research be done?
After conducting comprehensive research during the initial setup, updating every three months is sufficient. However, immediate updates are necessary for new product/service launches or market changes. Additionally, seasonal fluctuations and trending searches should also be monitored.
Can professional results be achieved with free tools?
Free tools like Google Keyword Planner and Google Trends are sufficient for starters. However, paid tools are necessary for data such as competition analysis, competitor comparison, and difficulty score. Small businesses can start with free tools and transition to paid tools as they grow.
How many keywords should be targeted?
Quality is more important than quantity. 1-2 main keywords and 3-5 variations are sufficient for one page. For the entire site, a reasonable starting point is between 20-100 target keywords, depending on the number of services or products your business offers. Creating topic clusters is more efficient than producing separate content for each keyword.
Do long-tail keywords really add value?
Yes. Although the search volume for a single long-tail keyword may be low, the total traffic from dozens of long-tail keywords can exceed the traffic of a head keyword. Additionally, the conversion rate is significantly higher for long-tail keywords because user intent is clearer and closer to purchase. For example, while the intent of someone searching for the keyword "dentist" is unclear, someone searching for "dental implant treatment prices Ankara 2026" is much more likely to book an appointment.
Is keyword research different for local businesses?
Yes, location-focused keywords are prominent in local SEO. Queries containing city names like "Ankara OSGB", "Istanbul dentist", "Bursa occupational safety expert" are the most valuable keywords for local businesses. Google Business Profile optimization and visibility in local search results are an integral part of local-focused keyword research.
What is the biggest mistake in keyword research?
The most common and harmful mistake is ignoring search intent. Targeting a high-volume keyword without producing content that matches the intent results in low rankings and a high bounce rate. Google algorithms place great importance on intent matching; content that doesn't align with intent, even if it ranks, will quickly fall because it doesn't satisfy the user.