Free SEO Content Analyzer & Keyword Density Checker
Analyze content for SEO best practices, keyword usage, readability, heading structure, topical relevance, and on-page optimization opportunities. Get actionable recommendations to improve rankings and content quality.
Minimum 50 words required for meaningful SEO analysis. Rich text formatting is preserved.
Where Your Keyword Appears
Content Structure Analysis
Topical Depth & Coverage
Add related terms to build topical authority
Search Intent Analysis
Based on your content's language and phrasing
Use these related terms naturally in your content.
How to Use This SEO Content Analyzer
Follow these simple steps to get the most out of the SEO content analyzer and improve your content's search visibility.
Enter Your Focus Keyword
Add the primary keyword you want your content to rank for in search results.
Paste or Upload Your Content
Copy and paste your article, blog post, or webpage content into the editor.
Analyze Your Results
Review your SEO score, keyword density, headings, readability, and topical coverage.
Fix & Re-Run Analysis
Apply the recommendations, then re-analyze to see your improved SEO score. Before publishing, review our Blog Post SEO Checklist and SEO Copywriting Checklist.
How We Calculate Your SEO Score
Our SEO content analyzer evaluates your content across multiple factors to provide a comprehensive score out of 100.
Content Length
Longer, comprehensive content ranks better. We check if your content meets recommended word counts. Use our Word Counter →
Keyword Placement
We check if your keyword appears in H1, title, meta description, canonical tags, URL slug, and within the first 100 words.
Semantic Relevance
We analyze related terms and synonyms to ensure your content covers the topic comprehensively. Learn about AI vs human writing patterns → Try the AI Writing Pattern Analyzer →
Readability
We check sentence length, paragraph structure, and overall readability to ensure user-friendly content. Read our SEO content writing guide →
Topical Coverage
We analyze how thoroughly your content covers the topic using related terms and semantic clusters. See the AI Content SEO Checklist →
Search Intent
We detect if your content aligns with the primary search intent for your target keyword. Learn keyword research →
What Makes a Good SEO Article in 2026?
Modern SEO content goes beyond keyword density. Here's what matters most for ranking in 2026:
Search Intent Alignment
Your content must match what users are actually looking for, whether informational, transactional, or navigational. Master keyword research →
Comprehensive Topic Coverage
Cover your topic in depth. Use related terms, examples, and answer common questions to build topical authority.
Helpful, Original Content
Google prioritizes content that is genuinely useful, original, and provides value beyond what already exists. SEO content writing best practices → Check for AI patterns →
Strong Internal Linking
Link to relevant content on your site to help users and search engines discover more of your content. Internal linking checklist → Discover pages to link with our Internal Link Suggestions tool →
SEO Content Quality Benchmarks
Use these benchmarks to evaluate your content against best practices for SEO.
| Metric | Poor | Good | Excellent |
|---|---|---|---|
| Word Count | < 300 | 600–1200 | 1200+ |
| Keyword Density | < 0.1% or > 2.5% | 0.2%–1.5% | 0.5%–1.2% |
| Related Keywords | 0–2 | 3–9 | 5–10 naturally used |
| H2 Headings | 0 | 1–2 | 3+ |
| Images | 0 | 1–3 | 3+ with ALT text (Image SEO Checklist) |
| Internal Links | 0 | 1–3 | 3+ (Learn internal linking) |
| Questions Asked | 0 | 1–3 | 3+ |
| Readability Score | Poor | Average | Good |
Use these benchmarks to guide your content optimization efforts.
What Is an SEO Content Analyzer?
An SEO content analyzer helps you optimize content for search engines by checking keyword usage, keyword density, headings structure, readability, and topical depth. It's an essential on-page SEO tool for content writers and marketers.
This tool analyzes your content and shows whether your target keyword appears naturally throughout the page. It also helps identify keyword stuffing, weak optimization, and missing related keywords that search engines expect. For best results, also verify your canonical tags are set correctly to avoid duplicate content issues.
Optimizing content correctly can improve rankings, increase organic traffic, and help search engines understand your page's topic more clearly. Good SEO content analysis balances keyword placement with natural, valuable writing. Add Article schema using our Schema Markup Generator to help search engines better understand your content structure.
What Is Good Keyword Density?
Modern SEO no longer relies heavily on exact-match keyword density.
In 2026, natural writing, topical relevance, and
semantic coverage matter far more
than repeating the same phrase.
For most articles:
• 0.2%–1.5% is usually a healthy range
• Long-tail keywords naturally appear less often
• Overusing exact keywords can hurt readability and trust
• Google now understands synonyms, related phrases, and
search intent
A lower density can still rank well if your content covers the topic naturally and completely.
Keyword Density Formula
Keyword density measures how often a focus keyword appears compared to the total word count.
Keyword Density = (Keyword Count ÷ Total Words) × 100
Example:
If a keyword appears 4 times in a
2,000-word article:
(4 ÷ 2000) × 100 = 0.2%
That can still be completely normal for a modern SEO article,
especially when related phrases are used naturally throughout the content.
How Content Analysis Works
This SEO content analyzer checks how well your content targets a keyword. It looks at density, placement, related terms, readability score, and overall clarity.
Keyword Density = (Keyword Count ÷ Total Words) × 100
Keyword Density Guidelines
- 0.2%–1.5%Natural and modern SEO-friendly keyword usage
- 0.1%–0.2%Often normal for long-tail keywords
- 1.5%–2.5%Use carefully — excessive repetition
- Above 2.5%May appear over-optimized or keyword stuffed
Content Writing for SEO
- Write for people first, search engines second
- Use synonyms and related keywords naturally
- Cover topics comprehensively, not just keywords
- Include target keyword in URL slug if possible
- Update and refresh content regularly
Improve Your Content Further
After analyzing your content, use these checklists and guides to optimize every aspect of your articles:
SEO Copywriting Checklist
Optimize your writing style for both readers and search engines.
Blog Post SEO Checklist
Complete pre-publish checklist for every blog post.
AI Content SEO Checklist
Ensure AI-generated content meets SEO standards.
On-Page SEO Checklist
Optimize all on-page elements for better rankings.
Keyword Research Guide
Find the right keywords to target with your content.
Schema Markup Checklist
Add structured data to enhance search appearances. Learn Article schema →
After Optimizing Your Content
Content optimization is just one part of the SEO process. After improving your content, verify Google can crawl and index your pages to ensure they appear in search results.
Complete a full technical audit of your page.
Perfect your titles and descriptions.
Follow the internal linking checklist or use Internal Link Suggestions.
Use the Indexability Checker and Crawlability Checklist. Also verify your robots.txt doesn't accidentally block important pages.
Submit an XML sitemap to search engines. Learn about robots.txt best practices →
See how your page appears with the SERP Preview Tool.