Keyword Research: The Complete Guide to Finding the Right Keywords

Keyword research is the foundation of every successful SEO and PPC strategy. Without it, you’re essentially throwing darts in the dark — hoping your content or ads reach the right people, but having no real plan behind it.

In this guide, I’ll walk you through everything you need to know about keyword research: why it matters, how to identify the right keywords, which tools to use, and a proven 5-step process you can follow today.

Why Keyword Research Matters

Keyword research isn’t just about finding words people type into Google. It’s about understanding your audience — what they’re looking for, how they search, and what language they use.

Here’s why it’s essential:

• You discover real demand. Instead of guessing what your customers want, you see exactly what they’re searching for — and how often.
• You prioritize your efforts. Not all keywords are equal. Research helps you focus on terms that actually drive revenue, not just traffic.
• You understand the competition. Some keywords are virtually impossible to rank for without years of effort. Others are wide open. Research tells you which is which.
• You build a content roadmap. Once you know what people search for, you can plan content, landing pages, and ad groups around real demand.

Types of Keywords

Keywords fall into three broad categories based on length and specificity:

Type	Length	Search Volume	Competition	Conversion Rate	Example
Head terms	1–2 words	Very high	Very high	Low	„running shoes“
Mid-tail	2–3 words	Medium	Medium	Medium	„best running shoes for men“
Long-tail	4+ words	Low	Low	High	„best running shoes for flat feet under €100“

The takeaway: Head terms bring traffic but rarely convert. Long-tail keywords bring less traffic but attract people who are ready to buy. A balanced strategy targets all three, but long-tail keywords are where most businesses should start — especially if you’re competing against established players.

Search Intent: The Most Important Factor

Every search query has an intent behind it. Understanding that intent is arguably more important than the keyword itself. Google has gotten extremely good at matching results to intent, so if your content doesn’t match what the searcher actually wants, you won’t rank — regardless of how well you optimize.

There are four main types of search intent:

1. Informational Intent

The user wants to learn something.

• Examples: „what is ROAS,“ „how does remarketing work,“ „keyword research tips“
• Content type: Blog posts, guides, tutorials, videos
• Business value: Lower direct conversion, but excellent for building authority and capturing top-of-funnel traffic

2. Navigational Intent

The user is looking for a specific website or page.

• Examples: „Google Ads login,“ „Ahrefs pricing,“ „HubSpot blog“
• Content type: Brand pages, login pages
• Business value: High if they’re searching for your brand, low otherwise

3. Commercial Intent

The user is researching before making a purchase decision.

• Examples: „best PPC tools 2026,“ „Ahrefs vs SEMrush,“ „Google Ads specialist reviews“
• Content type: Comparison articles, reviews, listicles
• Business value: High — these users are close to a decision

4. Transactional Intent

The user is ready to buy or take action.

• Examples: „buy running shoes online,“ „hire PPC specialist,“ „Google Ads audit price“
• Content type: Product pages, service pages, landing pages
• Business value: Highest — these are your money keywords

Free Keyword Research Tools

You don’t need expensive software to do solid keyword research. Here are the best free options:

Google Keyword Planner

The go-to tool for PPC keyword research, built right into Google Ads. It shows search volumes, competition levels, and suggested bid ranges. The catch: volume ranges are broad (e.g., „1K–10K“) unless you’re running active campaigns.

Best for: PPC keyword research, getting initial volume estimates.

Google Search Console (GSC)

Your goldmine for finding keywords you already rank for. GSC shows which queries bring impressions and clicks to your site, along with your average position. This is invaluable for finding „low-hanging fruit“ — queries where you rank on page 2 and could push to page 1.

Best for: Finding existing ranking opportunities, understanding current performance.

Google Suggest (Autocomplete)

Start typing a query in Google and watch the suggestions appear. These are real searches that real people perform regularly. Try typing your seed keyword followed by different letters (a, b, c…) to uncover variations you’d never think of.

Best for: Discovering long-tail variations, understanding how people phrase queries.

AnswerThePublic

Enter a keyword and get a visual map of questions, prepositions, and comparisons people search for. Great for content ideation and understanding the full landscape of queries around a topic.

Best for: Content planning, finding question-based keywords.

Google Trends

Shows how search interest changes over time. Essential for identifying seasonal trends, comparing keyword popularity, and spotting rising topics before your competitors do.

Best for: Seasonal planning, trend analysis, comparing keywords.

Paid Keyword Research Tools

When you’re ready to level up, these tools provide deeper data and competitive insights:

Ahrefs

Arguably the most comprehensive SEO toolset available. Its Keywords Explorer shows accurate search volumes, keyword difficulty scores, click metrics, and SERP analysis. The Site Explorer feature lets you see exactly which keywords your competitors rank for.

Best for: Competitive analysis, finding keyword gaps, backlink research.

SEMrush

An all-in-one marketing toolkit that excels at competitive intelligence. Its Keyword Magic Tool generates thousands of keyword ideas from a single seed term, complete with intent classification and trend data.

Best for: Competitive research, PPC keyword analysis, content gap analysis.

Local and Regional Tools

Depending on your target market, local tools can provide more accurate data for specific regions. For Central European markets, tools like Marketing Miner or Collabim offer localized keyword data that global tools sometimes miss. Always check whether a global tool provides reliable volume data for your specific market before relying on it.

Best for: Regional keyword research, local market analysis.

The 5-Step Keyword Research Process

Here’s the exact process I use for every new project:

Step 1: Identify Seed Keywords

Start with 5–10 broad terms that describe your business, products, or services. Think about what your customers would search for if they were looking for what you offer.

How to find seed keywords:

• List your main products/services
• Look at your website navigation and category pages
• Check what competitors use in their title tags
• Ask your sales team what questions customers ask
• Review your Google Search Console data

Example for a PPC agency:

• Google Ads management
• PPC specialist
• pay-per-click advertising
• Google Ads audit
• digital advertising agency

Step 2: Expand Your List

Take each seed keyword and expand it using the tools above. Aim for 200–500 keywords at this stage. Don’t filter yet — cast a wide net.

Expansion methods:

• Google Keyword Planner: „Discover new keywords“
• Google Suggest: Type seed + each letter of the alphabet
• AnswerThePublic: Questions and prepositions
• Ahrefs/SEMrush: Related keywords, questions, also rank for
• Competitor analysis: What do the top 5 competitors rank for?

Step 3: Filter and Qualify

Now trim your list down to keywords that actually matter. Remove keywords that are:

• Irrelevant to your business
• Too broad or too vague
• Zero search volume
• Wrong intent (e.g., informational when you need transactional)
• Impossible to compete for (domain authority gap too large)

Step 4: Group into Clusters

Organize your remaining keywords into thematic clusters. Each cluster should represent a single topic that can be targeted with one page or piece of content.

Example cluster — „Google Ads Audit“:

• google ads audit
• google ads account audit
• ppc audit checklist
• how to audit google ads
• google ads audit template
• google ads performance review

Why clustering matters: Instead of creating 10 thin pages targeting 10 similar keywords, you create one comprehensive page that targets the entire cluster — which is exactly how Google evaluates content today.

Step 5: Prioritize

Not all keyword clusters deserve equal attention. Score each cluster based on:

Criterion	Weight	Question to Ask
Search Volume	Medium	Is there enough demand?
Relevance	High	Does this directly relate to our offering?
Competition	High	Can we realistically rank or compete?
Intent	High	Does the intent match our goals?
Business Value	Highest	Will this keyword drive revenue?

Prioritization framework:

• Priority 1 (Do First): High business value + manageable competition + decent volume
• Priority 2 (Do Next): High business value + high competition (long-term play)
• Priority 3 (Content Strategy): Informational keywords that build authority
• Skip: Low relevance, wrong intent, or negligible volume

Keyword Research Template

Here’s a practical template you can use to organize your research:

Keyword	Volume	Competition	Intent	Cluster	Priority	Target Page
google ads audit	720	Medium	Commercial	Audit	1	/services/google-ads-audit/
how to audit google ads	260	Low	Informational	Audit	3	/blog/google-ads-audit-guide/
ppc specialist near me	480	Medium	Transactional	Services	1	/services/
what is ROAS	1,900	Low	Informational	Education	3	/blog/roas-guide/
google ads vs seo	1,600	Medium	Commercial	Comparison	2	/blog/google-ads-vs-seo/

Key Takeaways

• Keyword research is not a one-time task — revisit it quarterly
• Focus on intent, not just volume
• Long-tail keywords are your best friend, especially when starting out
• Group keywords into clusters, not individual targets
• Prioritize by business value, not search volume
• Use free tools to start; invest in paid tools when your strategy matures

Next Steps

1. Start with GSC. If you have an existing website, your best opportunities are already hiding in your Search Console data.
2. Build your first keyword map. Use the template above to organize 50–100 keywords into clusters.
3. Match intent to content. For each cluster, decide whether it needs a service page, blog post, or landing page.
4. Track and iterate. Set up rank tracking and revisit your keyword strategy every quarter.

Written by Martin Bradac — PPC & SEO specialist with 9+ years of experience managing €80K+/month in ad spend.