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What Is Keyword Density?
Keyword density is the percentage of times a specific keyword appears in your content compared to the total word count. For example, if you write a 1,000-word article and your target keyword appears 15 times, your keyword density is 1.5%.
For SEO, the recommended keyword density is between 1% and 3%. Below 1% and search engines may not understand what your page is about. Above 3% and you risk appearing spammy or triggering keyword stuffing penalties.
The Keyword Density Formula
| Metric | Formula | Example |
|---|---|---|
| Keyword density | (Keyword count ÷ Total words) × 100 | (15 ÷ 1000) × 100 = 1.5% |
| Keyword frequency | Number of times keyword appears | 15 mentions |
How to Use the Keyword Density Checker
- Paste your content — Copy your article, blog post, or webpage text and paste it into the text area
- Instant analysis — The tool automatically analyses your content as you type or paste
- Review the results — Check the frequency table to see which keywords appear most often
- Optimise if needed — If your target keyword is too high (3%+) add more content. If too low (<1%), include it more naturally
Worked Example
Auditing a Blog Post
A blogger writes a 1,200-word article about "brick paving Melbourne" and wants to check keyword density before publishing.
| Keyword | Count | Density | Status |
|---|---|---|---|
| brick paving | 18 | 1.5% | ✓ Good |
| driveway | 12 | 1.0% | ✓ Good |
| Melbourne | 9 | 0.75% | ○ Low |
| paving cost | 8 | 0.67% | ○ Low |
The main keyword "brick paving" is at 1.5% (ideal). Related keywords are slightly low — the blogger might add a section about "Melbourne paving cost" to strengthen those naturally.
Keyword Density Best Practices
- 🎯 1-3% is the sweet spot — High enough for search engines to understand your topic, low enough to feel natural
- 📝 Write for humans first — Google rewards natural writing. Don't force keywords into every sentence
- 🔗 Use LSI keywords — Include related terms and synonyms. For "car loan", also use "auto finance", "vehicle financing"
- 📐 Check headings too — Keywords in H1, H2 and H3 carry more weight than body text
- 🚫 Avoid keyword stuffing — Google's Penguin algorithm penalises pages with unnatural keyword repetition