New to Claude Skills? Learn how to install them →

davila7 on GitHub

SEO Optimizer

Free

Enhance your website's search visibility with expert SEO guidance.

Get this skill

Free · Opens the source repo

What SEO Optimizer does

The SEO Optimizer skill provides comprehensive instructions for improving search engine optimization (SEO) across various aspects of web content and technical implementation. It serves as a valuable resource for developers and content creators looking to enhance their website's organic search visibility and rankings. This skill covers essential areas such as keyword research, on-page SEO, technical SEO, and content strategy, making it a versatile tool for anyone involved in digital marketing or web development.

To effectively use this skill, you will follow a structured approach to keyword research, focusing on search intent and balancing search volume with competition. The skill outlines a detailed keyword research process that includes identifying seed keywords, analyzing search volume, and mapping keywords to content types. Additionally, it provides guidelines for optimizing content, including best practices for title tags, meta descriptions, header structure, and URL formatting, ensuring that your content not only ranks well but also engages users effectively.

The technical SEO section of this skill is particularly useful for those looking to implement structured data through schema markup, optimize page speed, and configure robots.txt files. The instructions include practical examples and code snippets that can be directly applied to your website, making it easier to implement best practices without extensive prior knowledge of SEO.

Overall, the SEO Optimizer skill is designed for web developers, content strategists, and digital marketers who want to improve their website's performance in search engine results. Whether you're auditing existing content or planning new strategies, this skill offers the foundational knowledge and practical steps needed to succeed in SEO.

When to use it

Use this skill when you need to optimize website content, conduct keyword research, or implement technical SEO improvements.

When not to use it

This skill may not be suitable for users looking for automated SEO tools or those who require real-time analytics, as it focuses on instructional guidance rather than automation.

What you can build with it

Keyword Research for New Content

Utilize the skill to identify relevant keywords that align with user intent and optimize your new blog posts or product pages.

On-Page SEO Optimization

Follow the provided guidelines to enhance title tags, meta descriptions, and header structures for better search visibility.

Technical SEO Audit

Implement the technical SEO recommendations to improve site performance, including schema markup and robots.txt configuration.

How to install SEO Optimizer

View source

1. Install with the skills CLI

npx skills add davila7/claude-code-templates/seo-optimizer --agent claude-code

2. Or install it manually

Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.

Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs

Inside SKILL.md

Written by davila7

SEO Optimizer

Comprehensive guidance for search engine optimization across content, technical implementation, and strategic planning to improve organic search visibility and rankings.

When to Use This Skill

Use this skill when:

  • Optimizing website content for search engines
  • Conducting keyword research and analysis
  • Implementing technical SEO improvements
  • Creating SEO-friendly meta tags and descriptions
  • Auditing websites for SEO issues
  • Improving Core Web Vitals and page speed
  • Implementing schema markup (structured data)
  • Planning content strategy for organic traffic

SEO Fundamentals

1. Keyword Research & Strategy

Primary Keyword Selection:

  • Focus on search intent (informational, navigational, transactional, commercial)
  • Balance search volume with competition
  • Consider keyword difficulty and ranking potential
  • Target long-tail keywords for quick wins

Keyword Research Process:

1. Identify seed keywords from business objectives
2. Use tools to expand keyword list (Google Keyword Planner, Ahrefs, SEMrush)
3. Analyze search volume and difficulty
4. Group keywords by topic clusters
5. Map keywords to content types and pages
6. Prioritize based on potential ROI

Content Optimization Formula:

  • Primary keyword: 1-2% density (natural placement)
  • Include in: Title tag, H1, first paragraph, URL, meta description
  • Use semantic variations and related terms
  • Maintain natural readability (don't keyword stuff)

2. On-Page SEO

Title Tag Optimization:

<!-- Good: Descriptive, includes keyword, under 60 characters -->
<title>Ultimate Guide to React Hooks - Learn useEffect & useState</title>

<!-- Bad: Too long, keyword stuffing, generic -->
<title>React Hooks Guide React Hooks Tutorial React Hooks Examples Learn React</title>

Best Practices:

  • Keep under 60 characters (displayed in SERPs)
  • Place primary keyword near the beginning
  • Include brand name if space permits
  • Make compelling and click-worthy
  • Unique for every page

Meta Description:

<!-- Good: Compelling, includes keywords, call-to-action, 150-160 chars -->
<meta name="description" content="Master React Hooks with our comprehensive guide. Learn useState, useEffect, and custom hooks with practical examples. Start building better React apps today.">

<!-- Bad: Too short, no value proposition -->
<meta name="description" content="React Hooks guide and tutorial">

Header Structure:

<!-- Proper hierarchy -->
<h1>Main Page Title (Primary Keyword)</h1>
  <h2>Section Heading (Related Keywords)</h2>
    <h3>Subsection</h3>
    <h3>Subsection</h3>
  <h2>Another Section</h2>
    <h3>Subsection</h3>

URL Structure:

✅ Good URLs:
- /blog/react-hooks-guide
- /products/running-shoes
- /learn/javascript-async-await

❌ Bad URLs:
- /blog?p=12345
- /products/cat-1/subcat-2/item-999
- /page.php?id=abc&ref=xyz

Image Optimization:

<!-- Optimized image -->
<img
  src="/images/react-hooks-diagram-800w.webp"
  alt="React Hooks lifecycle diagram showing useState and useEffect"
  width="800"
  height="600"
  loading="lazy"
/>

Best Practices:

  • Use descriptive, keyword-rich alt text
  • Compress images (WebP format preferred)
  • Specify dimensions to prevent layout shift
  • Use lazy loading for below-fold images
  • Include captions when relevant

3. Content Quality

E-E-A-T Principles (Experience, Expertise, Authoritativeness, Trust):

  • Demonstrate author expertise with credentials
  • Cite authoritative sources
  • Keep content accurate and up-to-date
  • Show real experience and original insights
  • Include author bios and bylines

Content Structure for SEO:

# Main Title (H1) - Primary Keyword

Brief introduction with primary keyword in first 100 words.

## What is [Topic]? (H2) - Answer core question

Comprehensive explanation with examples.

## Why [Topic] Matters (H2) - Value proposition

Benefits and use cases.

## How to [Action] (H2) - Practical guide

Step-by-step instructions with visuals.

## Best Practices (H2) - Advanced tips

Expert recommendations.

## Common Mistakes to Avoid (H2)

Troubleshooting and pitfalls.

## Conclusion

Summary and call-to-action.

Content Length Guidelines:

  • Blog posts: 1,500-2,500 words (comprehensive topics)
  • Product pages: 300-500 words minimum
  • Category pages: 500-1,000 words
  • Homepage: 500+ words

4. Technical SEO

Schema Markup (Structured Data):

{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "Complete Guide to React Hooks",
  "image": "https://example.com/images/react-hooks.jpg",
  "datePublished": "2024-01-15",
  "dateModified": "2024-02-01",
  "author": {
    "@type": "Person",
    "name": "Jane Developer"
  },
  "publisher": {
    "@type": "Organization",
    "name": "Tech Academy",
    "logo": {
      "@type": "ImageObject",
      "url": "https://example.com/logo.png"
    }
  }
}

Common Schema Types:

  • Article (blog posts)
  • Product (e-commerce)
  • FAQ (question/answer pages)
  • HowTo (tutorials and guides)
  • Organization (company info)
  • LocalBusiness (location-based businesses)
  • BreadcrumbList (navigation paths)
  • Review/AggregateRating (ratings and reviews)

Robots.txt Configuration:

User-agent: *
Disallow: /admin/
Disallow: /private/
Disallow: /api/
Allow: /api/public/

Sitemap: https://example.com/sitemap.xml

XML Sitemap Structure:

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url>
    <loc>https://example.com/</loc>
    <lastmod>2024-01-15</lastmod>
    <changefreq>weekly</changefreq>
    <priority>1.0</priority>
  </url>
  <url>
    <loc>https://example.com/blog/react-hooks-guide</loc>
    <lastmod>2024-01-10</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
</urlset>

Canonical Tags:

<!-- Prevent duplicate content issues -->
<link rel="canonical" href="https://example.com/original-page">

<!-- Handle URL parameters -->
<link rel="canonical" href="https://example.com/products/shoes">
<!-- Even if accessed via: /products/shoes?color=red&size=10 -->

5. Core Web Vitals

Largest Contentful Paint (LCP) - Target: < 2.5s

  • Optimize images and videos
  • Use CDN for static assets
  • Minimize render-blocking resources
  • Implement lazy loading

First Input Delay (FID) - Target: < 100ms

  • Minimize JavaScript execution time
  • Break up long tasks
  • Use web workers for heavy computations
  • Defer non-critical JavaScript

Cumulative Layout Shift (CLS) - Target: < 0.1

  • Set size attributes on images and videos
  • Avoid inserting content above existing content
  • Use transform animations instead of layout-triggering properties
  • Reserve space for ads and embeds

Page Speed Optimization:

<!-- Preload critical resources -->
<link rel="preload" href="/fonts/main.woff2" as="font" crossorigin>

<!-- Defer non-critical CSS -->
<link rel="preload" href="/styles/non-critical.css" as="style" onload="this.onload=null;this.rel='stylesheet'">

<!-- Async/defer JavaScript -->
<script src="/js/analytics.js" async></script>
<script src="/js/main.js" defer></script>

6. Mobile SEO

Mobile-First Optimization:

  • Responsive design (mobile-friendly test passed)
  • Touch-friendly buttons (minimum 48x48px)
  • Readable font sizes (16px minimum)
  • Proper viewport configuration
  • Fast mobile page speed

Viewport Configuration:

<meta name="viewport" content="width=device-width, initial-scale=1">

7. Internal Linking Strategy

Best Practices:

  • Use descriptive anchor text (avoid "click here")
  • Link to relevant, contextual pages
  • Maintain logical hierarchy and flow
  • Include 3-5 internal links per 1,000 words
  • Update old content with links to new content

Example:

Learn more about [advanced React patterns](/guides/react-patterns)
or check out our [useState hook tutorial](/tutorials/usestate-guide).

SEO Content Checklist

Before Publishing:

  • Primary keyword in title tag (under 60 chars)
  • Meta description (150-160 chars, compelling)
  • H1 tag with primary keyword
  • URL slug optimized and readable
  • Images compressed with descriptive alt text
  • 3-5 internal links to relevant content
  • External links to authoritative sources
  • Content length appropriate for topic depth
  • Schema markup implemented
  • Mobile-friendly and responsive
  • Page speed optimized (< 3s load time)
  • No broken links
  • Canonical tag set correctly
  • Social sharing meta tags (Open Graph, Twitter Card)

Advanced SEO Strategies

Topic Clusters & Pillar Pages

Structure:

Pillar Page: "Complete Guide to React"
  ├── Cluster: "React Hooks Tutorial"
  ├── Cluster: "React Context API Guide"
  ├── Cluster: "React Performance Optimization"
  └── Cluster: "React Testing Best Practices"

Implementation:

  • Create comprehensive pillar content (3,000+ words)
  • Develop 8-12 cluster articles supporting the pillar
  • Link all clusters back to pillar page
  • Link pillar page to all clusters
  • Use consistent keyword themes

Featured Snippet Optimization

Question-Based Content:

## What is React?

React is a JavaScript library for building user interfaces,
developed by Facebook. It allows developers to create reusable
UI components and efficiently update the DOM through a virtual
DOM implementation.

List-Based Content:

## Top 5 React Best Practices

1. Use functional components with hooks
2. Implement proper state management
3. Optimize performance with React.memo
4. Follow component composition patterns
5. Write comprehensive tests

Table-Based Content:

FrameworkPerformanceLearning CurveEcosystem
ReactExcellentModerateExtensive
VueExcellentEasyGrowing
AngularGoodSteepMature

Local SEO (for businesses with physical locations)

Google Business Profile Optimization:

  • Complete all business information
  • Regular posts and updates
  • Respond to reviews
  • Add high-quality photos
  • Verify business hours

Local Schema Markup:

{
  "@type": "LocalBusiness",
  "name": "Tech Solutions Inc",
  "address": {
    "@type": "PostalAddress",
    "streetAddress": "123 Main St",
    "addressLocality": "San Francisco",
    "addressRegion": "CA",
    "postalCode": "94102"
  },
  "telephone": "+1-415-555-0123"
}

Monitoring & Analytics

Key Metrics to Track:

  • Organic traffic trends
  • Keyword rankings
  • Click-through rates (CTR)
  • Bounce rate and dwell time
  • Core Web Vitals scores
  • Backlink profile growth
  • Conversion rates from organic traffic

Tools:

  • Google Search Console (performance, indexing issues)
  • Google Analytics 4 (traffic, behavior, conversions)
  • PageSpeed Insights (Core Web Vitals)
  • Ahrefs/SEMrush (keywords, backlinks, competition)
  • Screaming Frog (technical audits)

When optimizing for SEO, prioritize user experience and value delivery. Search engines increasingly reward content that genuinely helps users and provides authoritative, trustworthy information.

Frequently asked questions about SEO Optimizer

Similar skills