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On-page SEO optimization techniques including keyword density, meta tags, heading structure, and readability. Use when optimizing existing content or validating new content against SEO requirements.

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SKILL.md

name content-optimizer
description On-page SEO optimization techniques including keyword density, meta tags, heading structure, and readability. Use when optimizing existing content or validating new content against SEO requirements.

Content Optimizer

When to Use

  • Optimizing existing content for better rankings
  • Validating new content against SEO requirements
  • Checking keyword density and placement
  • Improving readability scores
  • Creating meta tags

Keyword Density

Target: 1-2% for primary keyword

Calculation:

Density = (Keyword Count / Total Words) x 100

Placement Priorities:

  1. Title/H1 (required)
  2. First 100 words (required)
  3. At least one H2 (recommended)
  4. Conclusion (recommended)
  5. Distributed in body (natural)

Warning Signs:

  • 3% = Keyword stuffing risk

  • <0.5% = Under-optimized
  • Exact match every paragraph = Unnatural

Meta Tag Optimization

Title Tag

  • Length: 50-60 characters
  • Keyword: Near the beginning
  • Format: {Keyword} - {Benefit} | {Brand}
  • Unique per page

Meta Description

  • Length: 150-160 characters
  • Keyword: Include naturally
  • CTA: End with action verb
  • Unique per page

URL Slug

  • Short: 3-5 words
  • Keyword: Include primary
  • Readable: Use hyphens
  • Lowercase only

Heading Structure

Valid Hierarchy:

H1: Page Title (exactly 1)
+-- H2: Main Section
|   +-- H3: Subsection
|   +-- H3: Subsection
+-- H2: Main Section
|   +-- H3: Subsection
+-- H2: Conclusion

Common Errors:

  • Multiple H1 tags
  • Skipping levels (H1 -> H3)
  • Using headings for styling only
  • No keyword in H1

Readability Optimization

Flesch Reading Ease Target: 60-70

Score Level Audience
90-100 Very Easy 5th grade
80-89 Easy 6th grade
70-79 Fairly Easy 7th grade
60-69 Standard 8th-9th grade
50-59 Fairly Difficult 10th-12th grade
30-49 Difficult College
0-29 Very Difficult College graduate

Improvement Techniques:

  • Shorten sentences (<20 words avg)
  • Shorten paragraphs (2-3 sentences)
  • Replace jargon with plain language
  • Use active voice
  • Add subheadings every 200-300 words
  • Use bullet points for lists

Optimization Checklist

Use this checklist when optimizing content:

  • Primary keyword in title/H1
  • Primary keyword in first 100 words
  • Keyword density 1-2%
  • Meta title 50-60 characters
  • Meta description 150-160 characters with CTA
  • Heading hierarchy valid (H1 -> H2 -> H3)
  • At least 3 internal links
  • At least 1 external authoritative link
  • Flesch score 60-70
  • No paragraphs > 3 sentences
  • Subheadings every 200-300 words