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vapvarun

seo-optimization

by vapvarun

Personal backup of Claude Code skills and plugins

4🍴 0📅 2026年1月22日
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SKILL.md


name: seo-optimization description: Optimize websites for search engines including on-page SEO, technical SEO, meta tags, schema markup, Core Web Vitals, and keyword optimization. Use when improving search rankings, auditing SEO, or optimizing content for Google.

SEO Optimization Skill

Instructions

When optimizing for SEO:

1. On-Page SEO

Title Tags:

  • 50-60 characters max
  • Primary keyword near the beginning
  • Include brand name at end
  • Make it compelling and clickable
<title>Primary Keyword - Secondary Keyword | Brand Name</title>

Meta Descriptions:

  • 150-160 characters
  • Include primary keyword
  • Call-to-action
  • Unique for each page
<meta name="description" content="Compelling description with keyword that encourages clicks. Learn more about X today!">

Heading Structure:

<h1>One H1 per page with primary keyword</h1>
<h2>Section headings with secondary keywords</h2>
<h3>Subsections for organization</h3>

2. Technical SEO

Essential Meta Tags:

<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="robots" content="index, follow">
<link rel="canonical" href="https://example.com/page/">

Open Graph (Social Sharing):

<meta property="og:title" content="Page Title">
<meta property="og:description" content="Description">
<meta property="og:image" content="https://example.com/image.jpg">
<meta property="og:url" content="https://example.com/page/">
<meta property="og:type" content="website">

Twitter Cards:

<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="Page Title">
<meta name="twitter:description" content="Description">
<meta name="twitter:image" content="https://example.com/image.jpg">

3. Schema Markup (JSON-LD)

Organization:

{
  "@context": "https://schema.org",
  "@type": "Organization",
  "name": "Company Name",
  "url": "https://example.com",
  "logo": "https://example.com/logo.png",
  "contactPoint": {
    "@type": "ContactPoint",
    "telephone": "+1-xxx-xxx-xxxx",
    "contactType": "customer service"
  },
  "sameAs": [
    "https://facebook.com/company",
    "https://twitter.com/company"
  ]
}

Product:

{
  "@context": "https://schema.org",
  "@type": "Product",
  "name": "Product Name",
  "image": "https://example.com/product.jpg",
  "description": "Product description",
  "brand": {"@type": "Brand", "name": "Brand"},
  "offers": {
    "@type": "Offer",
    "price": "49.99",
    "priceCurrency": "USD",
    "availability": "https://schema.org/InStock"
  },
  "aggregateRating": {
    "@type": "AggregateRating",
    "ratingValue": "4.8",
    "reviewCount": "124"
  }
}

Article/Blog Post:

{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "Article Title",
  "author": {"@type": "Person", "name": "Author Name"},
  "datePublished": "2025-01-15",
  "dateModified": "2025-01-20",
  "image": "https://example.com/article-image.jpg"
}

FAQ:

{
  "@context": "https://schema.org",
  "@type": "FAQPage",
  "mainEntity": [{
    "@type": "Question",
    "name": "Question text?",
    "acceptedAnswer": {
      "@type": "Answer",
      "text": "Answer text."
    }
  }]
}

4. Core Web Vitals

LCP (Largest Contentful Paint) < 2.5s:

  • Optimize images (WebP, lazy loading)
  • Preload critical assets
  • Use CDN

FID (First Input Delay) < 100ms:

  • Minimize JavaScript
  • Break up long tasks
  • Use web workers

CLS (Cumulative Layout Shift) < 0.1:

  • Set image dimensions
  • Reserve space for ads/embeds
  • Avoid inserting content above existing content

5. Image SEO

<img
  src="image.webp"
  alt="Descriptive alt text with keyword"
  width="800"
  height="600"
  loading="lazy"
  decoding="async"
>

6. URL Structure

Good:

  • example.com/category/product-name
  • example.com/blog/how-to-do-something

Avoid:

  • example.com/p?id=123
  • example.com/category/sub/sub/page

7. Internal Linking

  • Use descriptive anchor text
  • Link to related content
  • Create topic clusters
  • Maintain reasonable link depth (3 clicks max)

8. SEO Checklist

  • Unique title tag with keyword
  • Meta description with CTA
  • One H1 with primary keyword
  • Schema markup implemented
  • Images optimized with alt text
  • Internal links added
  • Mobile-friendly
  • Page speed optimized
  • Canonical URL set
  • XML sitemap updated

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