Ahrefs costs €99/month. Semrush €129. For a tech blog that doesn't have traffic yet, that's a lot of money. The good news: You can find the best keywords for free – if you know where to look.
Why Tech Blogs Need Different SEO Strategies
The Problem with Generic SEO Tips
"Write about topics with high search volume" – doesn't work for tech blogs:
- High competition: Mozilla, W3Schools, freecodecamp rank for "React Tutorial"
- Generic content: What everyone writes brings no traffic
- Missing focus: Tech is huge – you need a niche
The Tech Blog Strategy
Instead of: "React Tutorial" (500,000 searches, impossible to rank) Better: "React useEffect cleanup function" (2,000 searches, rankable)
Principle: Specific beats generic. Always.
Free Keyword Research: 7 Methods
Method 1: Google Autocomplete
The simplest and most underrated method:
- Go to Google
- Type your topic
- See what Google suggests
Example: Type "n8n"
- n8n tutorial
- n8n vs zapier
- n8n self hosted
- n8n webhook
- n8n docker
Pro tip: Use underscore as wildcard:
- "n8n _ tutorial" → shows what's searched between n8n and tutorial
- "how to _ in react" → shows variations
Method 2: Google "People Also Ask"
Scroll down on a Google search:
Example: Search "workflow automation"
- What is workflow automation software?
- What are examples of workflow automation?
- Is workflow automation the same as RPA?
- How do I automate my workflow?
Each question is a potential blog post.
Method 3: Google "Related Searches"
At the very bottom of Google results page:
Example: Search "api integration"
- api integration tools
- api integration examples
- api integration best practices
- api integration testing
These keywords show related search intents.
Method 4: Reddit and Stack Overflow Mining
Where developers ask questions = Where search demand exists.
Reddit:
- Search your topic on Reddit
- Sort by "Top" (all time)
- Note recurring questions
- Write answers as blog posts
Stack Overflow:
- Search for your tag
- Sort by "Votes"
- Frequently voted questions = high demand
- Your blog post becomes more comprehensive than any SO answer
Example: [python] tag on Stack Overflow
- "How to check if a list is empty" (1.5M views)
- "How to merge two dictionaries" (900k views)
Method 5: GitHub Issues and Discussions
Strategy:
- Go to popular repos in your niche
- Read Issues and Discussions
- Frequent problems = blog topics
Example: n8n GitHub Issues
- "How to handle API rate limiting"
- "Best practices for error handling"
- "Webhook security setup"
Method 6: Google Search Console
If you already have traffic:
- Go to Search Console → Performance → Queries
- See which keywords you already rank (poorly) for
- Write better content for these keywords
Example: You rank at position 15 for "nextjs api routes" → Write a comprehensive guide, improve your ranking to top 5
Method 7: YouTube as Keyword Tool
YouTube is the second largest search engine:
- Search your topic on YouTube
- See which videos have many views
- These topics also work as blog posts
Bonus: Video content often has less text competition.
The Keyword Quality Check
Not every keyword is worth writing about.
The KISS Check
K – Competition Who currently ranks on page 1?
- Only large sites → Hard
- Mix of large and small → Possible
- Small/medium sites → Good
I – Intent What does the searcher want?
- Information ("what is...")
- Tutorial ("how to...")
- Comparison ("X vs Y")
- Solution ("X not working")
S – Specificity The more specific, the better:
- "Python" → too broad
- "Python async" → better
- "Python async requests parallel" → perfect
S – Search Volume Are there even searches? Check: Google Keyword Planner (free with Google Ads account) Minimum: 100-500 searches/month for niche topics
Content Strategy for Tech Blogs
The Pillar-Cluster Strategy
Pillar Content: Comprehensive guide on a main topic Cluster Content: Specific articles linking to the pillar
Example:
Pillar: "n8n Automation: The Complete Guide" Cluster:
- "n8n Installation with Docker"
- "n8n Webhook Setup"
- "n8n Error Handling"
- "n8n vs Make.com Comparison"
Content Types for Tech Blogs
1. Tutorials (How-to)
- Step-by-step instructions
- With code examples
- Screenshots where needed
2. Comparisons (X vs Y)
- Objective comparison
- Clear recommendation at end
- Tables for overview
3. Troubleshooting
- Describe problem clearly
- Multiple solution paths
- "What if that doesn't work"
4. Concepts Explained
- Complex made simple
- Practical examples
- When do you need this?
5. Tool Reviews
- Honest evaluation
- Concrete use cases
- Who is it for?
On-Page SEO for Tech Blogs
Optimize Titles
Formula: [Keyword] + [Benefit/Hook] + [Year/Qualifier]
Examples:
- ❌ "n8n Tutorial"
- ✅ "n8n Automation: 10 Practical Workflows (2026)"
Meta Description
Formula: [What] + [For whom] + [Benefit] (150-160 characters)
Example: "Learn n8n from scratch. Step-by-step guide with concrete workflow examples for marketing, sales and HR."
Heading Structure
H1: Main keyword (only once)
H2: Subtopic with keywords
H3: Specific point
H2: Another subtopic
H3: Specific point
Optimize Code Examples
- Code in
<pre>tags - Specify language for syntax highlighting
- Comments for explanations
- Make copyable
Internal Linking
Link related articles:
- "More on this in our guide to X"
- In-text links to related concepts
- "Related Posts" section at end
Measurement and Optimization
What to Track?
| Metric | Tool | Goal |
|---|---|---|
| Organic Traffic | Google Analytics | Growth |
| Keyword Rankings | Search Console | Top 10 |
| Click-Through-Rate | Search Console | >3% |
| Time on Page | Google Analytics | >2 min |
| Backlinks | Search Console | Growth |
When to Optimize?
Check after 3 months:
- Does the article rank? Where?
- Which keywords bring traffic?
- Where do users drop off?
Optimizations:
- Adjust title and meta description
- Expand content (longer ≠ better, but more comprehensive)
- Add internal links
- Add multimedia
Conclusion
SEO for tech blogs works differently than other niches:
- Specific over generic – "React useEffect cleanup" instead of "React Tutorial"
- Use free tools – Google, Reddit, Stack Overflow, GitHub
- Solve developer problems – Where questions are asked, searches happen
- Pillar-cluster strategy – Connected content builds authority
- Think long-term – SEO needs 3-6 months for results
The most expensive tools are useless if you don't know what to look for. Start free, invest later – when you have traffic.
Want to optimize the technical side of SEO? Our Technical SEO Checklist shows you how to optimize Core Web Vitals, crawling and structured data.
