How to Do Keyword Research with Free Tools Only (2026 Guide)

Keyword research is the foundation of all SEO. Before you write a single blog post, you need to know: what words do people actually type into Google? Without this knowledge, you're publishing content nobody searches for — and wondering why you get no traffic.

The good news is that you can do professional-level keyword research without spending a penny on tools. This guide gives you a complete, step-by-step process using only free resources.

What is Keyword Research and Why It Matters

Keyword research is the process of identifying the specific words and phrases people type into search engines. When you know exactly what your audience searches for, you can create content that directly answers those searches — and Google will show your pages to those searchers.

Think of it this way: you could write the best guide on WordPress in the world, but if you title it "My Thoughts on CMS Platforms" instead of "How to Start a WordPress Website," almost nobody will find it. The topic is right — but the language doesn't match what people actually search.

"Keyword research is not about stuffing words into your content. It's about understanding the language your audience uses — and speaking that language."

Every piece of content you publish should target a specific keyword — one that real people search for, that you have a realistic chance of ranking for, and that aligns with what your website is about.

Understanding Keyword Types

Not all keywords are equal. Understanding the different types helps you choose the right keywords to target at the right stage of your website's growth.

Short-Tail vs Long-Tail Keywords

• Short-tail keywords — 1–2 words, very high monthly searches, extremely high competition. Examples: "SEO," "WordPress," "website." Near impossible for a new site to rank for.
• Medium-tail keywords — 2–3 words, moderate volume, moderate competition. Examples: "WordPress tutorial," "SEO for beginners." Achievable after 6–12 months of consistent publishing.
• Long-tail keywords — 4+ words, lower volume, low competition. Examples: "how to start a wordpress website for beginners," "best free seo tools for small businesses." These are your goldmine as a beginner.

Informational vs Commercial Keywords

• Informational keywords — People want to learn. Examples: "how to do keyword research," "what is SEO." Best for blog posts and guides.
• Commercial keywords — People are comparing options before a decision. Examples: "best keyword research tools," "Ahrefs vs SEMrush." Best for comparison posts and reviews — great for affiliate income.
• Transactional keywords — People are ready to buy or sign up. Examples: "buy Ahrefs," "Hostinger discount code." Best for product pages and landing pages.

Key Metrics: Volume, Difficulty, and Intent

When evaluating a keyword, you need to assess three things:

1. Search Volume

Search volume is the average number of times a keyword is searched per month. Higher volume means more potential traffic — but also more competition. For a new website, focus on keywords with 100–2,000 monthly searches. They're achievable and still send meaningful traffic over time.

2. Keyword Difficulty

Keyword difficulty (KD) is a score (0–100) that estimates how hard it is to rank on Google's first page for a keyword. The lower the score, the easier it is to rank. As a beginner with a new website:

• 0–20 — Very easy. Target these aggressively.
• 21–40 — Achievable with good content. Worth targeting.
• 41–60 — Difficult. Only target after building domain authority.
• 61–100 — Very hard. Leave these alone for now.

3. Search Intent

Before targeting any keyword, search it in Google and look at the top 5 results. What type of content ranks? If they're all listicles, write a listicle. If they're all how-to guides, write a guide. Matching search intent is more important than any other on-page SEO factor.

The 5 Best Free Keyword Research Tools

Here are the only free keyword research tools you need as a beginner:

Step-by-Step Keyword Research Process

Here is the exact keyword research process to follow for every blog post or page you create. It takes about 15–20 minutes per topic.

Real Keyword Examples for Beginners

Here are real keyword examples showing the difference between competitive and beginner-friendly targets in the web skills niche:

The pattern is clear: the more specific and longer the keyword, the easier it is to rank. Start at the bottom of this list and work your way up as your domain builds authority.

How to Use Keywords in Your Content

Once you've chosen your keyword, here's exactly where to use it in your content — without overdoing it:

• H1 title — Include your exact target keyword once, naturally. Example: "How to Do Keyword Research with Free Tools."
• First 100 words — Use your target keyword in the opening paragraph. Don't force it — write a natural sentence that includes it.
• At least one H2 subheading — Include the keyword or a close variation in one of your main section headings.
• Meta description — Write a compelling 150-character meta description that includes your keyword naturally.
• URL slug — Use your target keyword only, with hyphens: /keyword-research-free-tools/
• Image alt text — Describe your images using keyword-relevant phrases.
• Throughout the body — Use the keyword and its variations naturally, roughly every 300–400 words.

Keyword Research Mistakes Beginners Always Make

• Targeting keywords that are too competitive — The most common mistake. A new site cannot rank for "SEO" or "WordPress." Start with long-tail keywords under difficulty 30 and build authority over time.
• Ignoring search volume — Ranking number 1 for a keyword with 10 monthly searches sends you almost no traffic. Aim for at least 100 monthly searches for any keyword you invest time creating content for.
• Targeting the same keyword across multiple posts — This causes "keyword cannibalism" — your own pages compete against each other in Google's results. Each post should target a unique primary keyword.
• Not checking search intent — Writing a blog post for a keyword where Google only ranks product pages. Always check the SERP before committing to a keyword.
• Skipping secondary keywords — One keyword per page is your primary target, but including 3–5 related secondary keywords naturally throughout your content dramatically increases the number of search terms you can rank for.
• Giving up too soon — Keyword research results in ranking improvements over months, not days. Publish the content, wait 3–6 months, then review and optimise.

Now that you know how to do keyword research, the next step is applying these keywords correctly to your content. Read our On-Page SEO Checklist for the complete guide to optimising every piece of content you publish. Or go back to our complete SEO guide for beginners to see how keyword research fits into the bigger SEO picture.