Text analysis: nausea, water content, word frequency
Keyword Check
Top 10 words by frequency
| # | Word | Count | Frequency |
|---|---|---|---|
Classic nausea — square root of the most frequent word's count. Normal: up to 7.
Academic nausea — ratio of total repeated word frequencies to total word count, in percent. Normal: up to 8%.
Water content — proportion of stop words to total word count. Normal: up to 60%.
Top 10 words — most frequently occurring meaningful words (excluding stop words) in the text.
Words per sentence — average sentence length. For web texts, 15-20 words is recommended.
SEO Text Analyzer: Keyword Density, Readability and Spam Score
Check your text's SEO quality before publishing: keyword density, classic and academic nausea scores, water content, and readability. The tool helps avoid over-optimization and improve search rankings.
Why analyze SEO text
SEO text analysis helps find the balance between user readability and search engine optimization. Over-optimized text with high keyword density triggers spam filters (Google's SpamBrain, Panda). Under-optimized text doesn't rank for target queries.
The analyzer shows word frequency, keyword density, heading structure, and other metrics to help prepare content before publishing.
Keyword density
Keyword density = (Occurrences / Total words) × 100%| Density | Assessment | Recommendation |
|---|---|---|
| 0–0.5% | Very low | Topic barely covered |
| 0.5–2% | Optimal | Natural usage — recommended |
| 2–4% | High | Acceptable for short texts; check for naturalness |
| >4% | Over-optimized | Risk of penalties; dilute with synonyms |
TF-IDF is a more accurate metric — it considers word frequency in the text relative to its rarity across the entire web corpus. Modern SEO tools use TF-IDF rather than simple keyword density.
Readability
Search engines analyze user behavior. If content is unreadable and users bounce immediately — that's a negative signal. Key readability factors:
- Sentence length — aim for 15–20 words; over 30 is hard to follow
- Paragraph length — 3–5 sentences maximum
- Lists and bullets — make content scannable
- H2/H3 headings — structure content and aid navigation
- Active voice — easier to read than passive constructions
Optimal SEO content structure
- Introduction (100–150 words) — answers what the reader will gain
- Body (H2 → H3 sections) — covers the topic by subtopics
- Tables and lists — search engines select these for featured snippets
- Conclusion / CTA — summarizes and guides the user to the next step
- FAQ section — expands query coverage and supports Schema FAQPage markup
FAQ
What is the optimal SEO content length?
There's no universal answer. Analyze the length of top-10 competitors for your target query. For informational queries, 1,500–3,000 words is often optimal. For commercial queries (buy, order), concise content with clear facts outperforms bloated long-form.
Is exact keyword match important?
Google and Bing understand morphology and semantics. Exact match matters for anchor text, but in body content, natural usage in varied forms is more important. Text stuffed with exact-match phrases looks unnatural.
See also: keyword generator, word counter, meta tag generator.