Hinweis: Dieser Artikel wurde ursprünglich veröffentlicht in 2008 and has been significantly updated. The original tool referenced (Wordtracker Free Keywords) has evolved, and many new keyword research tools are now available. The strategies and tool recommendations below reflect current best practices.

Keyword research is the foundation of search engine optimization (SEO) and content strategy. Whether you run a technical blog, a knowledge base, or a business website, understanding what terms your audience searches for helps you create content that ranks well and drives relevant traffic. This guide covers the best keyword suggestion tools available, how to use them effectively, and strategies for technical content keyword research.

Einführung

When the original version of this article was published, Wordtracker’s free keyword tool (http://freekeywords.wordtracker.com/) was one of the few options available for keyword research. Since then, the landscape has expanded dramatically. Google provides its own tools, and numerous third-party platforms offer sophisticated keyword analysis. This updated guide covers both free and paid options to help you find the right keywords for your content.

Free Keyword Research Tools

Google Keyword Planner

Google Keyword Planner is the most authoritative free keyword tool because its data comes directly from Google search:

  • Access: Requires a Google Ads account (free to create; no active campaign spending required)
  • Features: Search volume ranges, competition level, bid estimates, keyword suggestions
  • Best for: Getting baseline search volume data and discovering related keywords
  • Limitation: Shows volume ranges (e.g., 1K-10K) rather than exact numbers unless you have active ad spend

How to use it:

  1. Sign into Google Ads at ads.google.com.
  2. Navigate to Tools > Planning > Keyword Planner.
  3. Choose “Discover new keywords” and enter your seed terms.
  4. Filter results by language, location, and date range.
  5. Export the results to a spreadsheet for analysis.

Google Search Console

For existing websites, Google Search Console shows the actual search queries driving traffic to your site:

  • Access: Free, requires site verification
  • Features: Real search queries, impressions, click-through rates, average position
  • Best for: Finding keywords your site already ranks for and identifying content gaps
  • Limitation: Only shows data for your own site

Google Trends compares the relative popularity of search terms over time:

  • Access: Free, no account required (trends.google.com)
  • Features: Trend comparison, geographic interest, related queries, seasonal patterns
  • Best for: Comparing keyword options, identifying seasonal topics, spotting rising trends

Ubersuggest

Created by Neil Patel, Ubersuggest offers a generous free tier:

  • Access: Free (limited queries per day) or paid subscription
  • Features: Search volume, SEO difficulty, paid difficulty, keyword suggestions, content ideas
  • Best for: Quick keyword research without creating an account

AnswerThePublic

This visual tool shows questions and prepositions people use around a keyword:

  • Access: Free (limited searches per day) or paid
  • Features: Question-based keywords, preposition combinations, comparison terms, visual maps
  • Best for: Finding content ideas and understanding user intent

Also Asked

Maps the “People Also Ask” data from Google search results:

  • Access: Free (limited) or paid
  • Features: Hierarchical question mapping, related question clusters
  • Best for: Understanding the question chain around a topic and structuring comprehensive content

Ahrefs Keywords Explorer

  • Features: Accurate search volumes, keyword difficulty scores, click data, SERP analysis, content gap analysis
  • Strength: Excellent backlink data integration with keyword research
  • Price range: Starting at $99/month

SEMrush Keyword Magic Tool

  • Features: Massive keyword database, topic clusters, question keywords, SERP features tracking
  • Strength: Competitive analysis and keyword gap identification
  • Price range: Starting at $129/month

Moz Keyword Explorer

  • Features: Keyword suggestions, difficulty scores, organic CTR data, priority scores
  • Strength: Combines volume, difficulty, and opportunity into a single priority metric
  • Price range: Starting at $99/month

Keyword Research Strategy for Technical Content

Technical blogs and knowledge bases benefit from a specific keyword research approach:

Schritt 1: Identify Seed Keywords

Start with the core topics you cover:

Examples of seed keywords for an IT knowledge base:
- nginx configuration
- Windows Server
- SQL Server error
- Ubuntu server
- PowerShell script
- Docker container

Schritt 2: Expand with Long-Tail Variations

Use keyword tools to find specific queries around your seed terms:

Seed: "nginx configuration"
Long-tail expansions:
- how to configure nginx reverse proxy
- nginx configuration file location ubuntu
- nginx ssl certificate configuration
- nginx load balancer configuration example
- nginx proxy_pass not working

Schritt 3: Mine Error Messages and Commands

Technical audiences often search for exact error messages or command syntax:

High-value technical keywords:
- "Error 1 SQL03006 user has an unresolved reference"
- "ntpdate command not found ubuntu"
- "web.config connectionStrings section"
- "system.serviceModel configuration"

Schritt 4: Analyze Search Intent

Categorize keywords by intent to match content format:

Intent TypeExampleContent Format
Informational”what is NTP protocol”Explainer article
Navigational”nginx documentation”Resource page
Fehlerbehebung”nginx 502 bad gateway fix”Schritt-by-step guide
Comparison”nginx vs apache performance”Comparison article

Schritt 5: Evaluate and Prioritize

Score each keyword on three factors:

  1. Search volume — Is anyone searching for this term?
  2. Competition — Can you realistically rank for it?
  3. Relevance — Does it match your site’s focus and audience?

For technical blogs, prioritize keywords with clear troubleshooting or how-to intent, as these consistently attract engaged readers.

Keyword Optimization Bewährte Methoden

Once you have selected your target keywords, optimize your content:

  1. Title tag — Include the primary keyword naturally in the page title.
  2. Headings — Use the keyword and variations in H2 and H3 headings.
  3. First paragraph — Mention the primary keyword within the first 100 words.
  4. URL slug — Use a clean, keyword-rich URL.
  5. Meta description — Write a compelling description that includes the keyword.
  6. Internal links — Link to related content using descriptive anchor text.
  7. Avoid keyword stuffing — Write naturally for humans first; search engines will follow.

Fehlerbehebung Low-Ranking Content

If your content is not ranking despite keyword optimization:

  • Check indexing — Use Google Search Console to verify the page is indexed.
  • Evaluate content depth — Compare your article length and detail against top-ranking competitors.
  • Review backlinks — Pages with few or no backlinks struggle to rank for competitive terms.
  • Assess technical SEO — Page speed, mobile-friendliness, and Core Web Vitals affect rankings.
  • Update regularly — Search engines favor fresh, recently updated content.

Zusammenfassung

Keyword research is essential for creating content that reaches your target audience through search engines. Free tools like Google Keyword Planner, Google Search Console, and Ubersuggest provide a solid foundation, while paid platforms like Ahrefs and SEMrush offer deeper analysis. For technical blogs and knowledge bases, focus on long-tail keywords that match specific questions and error messages your audience searches for. Combine keyword data with search intent analysis to create content that both ranks well and genuinely helps readers solve problems.

Verwandte Artikel