Keyword Density Checker
Paste any content. See top 1/2/3-word keywords and their density.
Single words
- No data
2-word phrases
- No data
3-word phrases
- No data
Quick Facts
- ✅ Analysis: 1, 2 and 3-word n-grams
- ⚡ Speed: Instant, live as you type
- 💰 Cost: 100% free — unlimited text
- 📊 Output: Frequency + density % per term
- 🧹 Extra: Stop-word filtering built in
- 🔄 Last Updated: June 2026
What Is Keyword Density Analyzer?
Keyword density is the percentage of total words on a page that a given keyword makes up. This free checker analyses any URL or pasted text and returns single-word, two-word and three-word phrase frequency with a density percentage for each, stop words filtered out. Use it to catch over-optimization, which reads as spam to both readers and search engines, and to confirm your target topic actually appears often enough to be understood. A natural range is roughly 0.5% to 2.5% for a primary term.
What Does Keyword Density Analyzer Check?
Keyword Density Analyzer is a free SEO tool from SEOAcademys that performs real-time analysis on any live URL. It evaluates 8+ signals using the same methodology trusted by 2.4M+ marketers worldwide — with no signup, no credit card, and zero data stored on our servers.
One, two and three
One, two and three-word phrase (n-gram) analysis
Density percentage and raw count for every term
Density percentage and raw count for every term
Stop
Stop-word filtering so results show meaningful phrases
Over
Over-optimization warnings above the safe threshold
Top
Top-N frequency table sortable by count or density
Works on a live URL or pasted draft text
Works on a live URL or pasted draft text
Total word, sentence and unique
Total word, sentence and unique-term summary
Highlights terms present in title but missing from body
Highlights terms present in title but missing from body
Why Keyword Density Analyzer Matters for Google Rankings in 2026
Keyword density is no longer a ranking formula, but extreme values still signal problems. Very high density looks like keyword stuffing and can trigger spam classifiers, while near-zero density usually means the page never states its subject clearly enough for retrieval systems to match it.
How to Use Keyword Density Analyzer
- 1
Step 1: Enter Your URL
Paste any public URL into the field above. Keyword Density Analyzer accepts both
http://andhttps://and auto-resolves redirects. - 2
Step 2: Run the Analysis
Click Analyze. Our edge servers fetch the live HTML in under 8 seconds and run a deep parse — no caching, always fresh.
- 3
Step 3: Fix the Issues
Review the prioritized fix list, copy the recommended snippets, and re-run Keyword Density Analyzer after deploying to confirm the score change.
What Keyword Density Analyzer Checks — Full List
Keyword Density Analyzer vs Surfer SEO: Why Free Wins
Paid SEO suites cost $99–$449/month. Keyword Density Analyzer runs the same on-page checks in real time, completely free.
| Feature | SEOAcademys | Surfer SEO | Ahrefs |
|---|---|---|---|
| Price | Free forever | $139.95/mo | $129/mo |
| Signup required | No | Yes | Yes |
| Live URL fetching | Yes | Yes | Yes |
| AI crawler signals (GPTBot, ClaudeBot) | Yes | No | Partial |
| Daily limit | Unlimited | 100 reports | 500 credits |
| Data stored | Nothing | Indefinitely | Indefinitely |
| Export CSV / JSON | Yes | Yes (paid tier) | Yes (paid tier) |
Common Keyword Density Tool Issues Found
Stuffing the exact-match phrase
Repeating a phrase above roughly 3% reads unnaturally and risks spam classification. Use synonyms and related entities instead.
Primary term missing from the first paragraph
If the topic is not named early, retrieval systems have to guess what the page is about.
Ignoring two and three-word phrases
Single-word density is noisy. The phrase-level table is where real over-optimization shows up.
Optimizing density instead of coverage
Covering related subtopics beats hitting a density number. Density is a diagnostic, not a target.
Frequently Asked Questions About Keyword Density Analyzer
What is a good keyword density?
Roughly 0.5% to 2.5% for the primary term. There is no official target, but pages above 3% frequently read as spam and pages near 0% often fail to establish topical relevance.
Does keyword density still matter for SEO?
Not as a ranking factor, but as a diagnostic it still matters. Search engines use semantic matching now, yet extreme density in either direction reliably correlates with weak pages.
What is keyword stuffing?
Keyword stuffing is repeating a phrase unnaturally to manipulate rankings. Google names it as a spam policy violation, and it is one of the easier patterns for automated systems to detect.
Should I include keywords in headings?
Include the topic naturally in the H1 and in relevant H2s. Forcing the exact phrase into every heading is the most common form of visible over-optimization.
Do AI search engines care about density?
They care about clarity, not repetition. Explicit entity naming helps extraction, while repetitive phrasing adds nothing and reduces readability.
Can I check a competitor page?
Yes. Enter any public URL to see which phrases dominate their content, which reveals the topics they treat as core.
Are stop words counted?
They are filtered by default so the table shows meaningful terms, though total word count still includes them.