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seo

Improve how search engines discover and understand a website by reviewing titles, descriptions, links, and sitemaps. Add structured data, machine-readable descriptions of page content, and use checklists to identify technical and on-page SEO issues.

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Optimize for search engine visibility and ranking. Use when asked to "improve SEO", "optimize for search", "fix meta tags", "add structured data", "sitemap optimization", or "search engine optimization". Do NOT use for accessibility (use web-accessibility), performance (use core-web-vitals), or comprehensive site audits covering multiple areas (use web-quality-audit).

集成工具Search Console

实测评分 未实测

查看安装方法

适用场景

  • Review page titles and meta descriptions
  • Check crawl settings and sitemaps
  • Add structured data to articles or product pages
  • Review language tags on multilingual sites

包含的文件(1)

  • SKILL.md11.9 KB

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

SEO optimization

Search engine optimization based on Lighthouse SEO audits and Google Search guidelines. Focus on technical SEO, on-page optimization, and structured data.

SEO fundamentals

Search ranking factors (approximate influence):

FactorInfluenceThis Skill
Content quality & relevance~40%Partial (structure)
Backlinks & authority~25%✗
Technical SEO~15%✓
Page experience (Core Web Vitals)~10%See Core Web Vitals
On-page SEO~10%✓

Technical SEO

Crawlability

robots.txt:

# /robots.txt
User-agent: *
Allow: /

# Block admin/private areas
Disallow: /admin/
Disallow: /api/
Disallow: /private/

# Don't block resources needed for rendering
# ❌ Disallow: /static/

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

Meta robots:

<!-- Default: indexable, followable -->
<meta name="robots" content="index, follow" />

<!-- Noindex specific pages -->
<meta name="robots" content="noindex, nofollow" />

<!-- Indexable but don't follow links -->
<meta name="robots" content="index, nofollow" />

<!-- Control snippets -->
<meta name="robots" content="max-snippet:150, max-image-preview:large" />

Canonical URLs:

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

<!-- Self-referencing canonical (recommended) -->
<link rel="canonical" href="https://example.com/current-page" />

<!-- For paginated content -->
<link rel="canonical" href="https://example.com/products" />
<!-- Or use rel="prev" / rel="next" for explicit pagination -->

XML sitemap

<?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>daily</changefreq>
    <priority>1.0</priority>
  </url>
  <url>
    <loc>https://example.com/products</loc>
    <lastmod>2024-01-14</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>
</urlset>

Sitemap best practices:

  • Maximum 50,000 URLs or 50MB per sitemap
  • Use sitemap index for larger sites
  • Include only canonical, indexable URLs
  • Update lastmod when content changes
  • Submit to Google Search Console

URL structure

✅ Good URLs:
https://example.com/products/blue-widget
https://example.com/blog/how-to-use-widgets

❌ Poor URLs:
https://example.com/p?id=12345
https://example.com/products/item/category/subcategory/blue-widget-2024-sale-discount

URL guidelines:

  • Use hyphens, not underscores
  • Lowercase only
  • Keep short (< 75 characters)
  • Include target keywords naturally
  • Avoid parameters when possible
  • Use HTTPS always

HTTPS & security

<!-- Ensure all resources use HTTPS -->
<img src="https://example.com/image.jpg" />

<!-- Not: -->
<img src="http://example.com/image.jpg" />

Security headers for SEO trust signals:

Strict-Transport-Security: max-age=31536000; includeSubDomains
X-Content-Type-Options: nosniff
X-Frame-Options: DENY

On-page SEO

Title tags

<!-- ❌ Missing or generic -->
<title>Page</title>
<title>Home</title>

<!-- ✅ Descriptive with primary keyword -->
<title>Blue Widgets for Sale | Premium Quality | Example Store</title>

Title tag guidelines:

  • 50-60 characters (Google truncates ~60)
  • Primary keyword near the beginning
  • Unique for every page
  • Brand name at end (unless homepage)
  • Action-oriented when appropriate

Meta descriptions

<!-- ❌ Missing or duplicate -->
<meta name="description" content="" />

<!-- ✅ Compelling and unique -->
<meta
  name="description"
  content="Shop premium blue widgets with free shipping. 30-day returns. Rated 4.9/5 by 10,000+ customers. Order today and save 20%."
/>

Meta description guidelines:

  • 150-160 characters
  • Include primary keyword naturally
  • Compelling call-to-action
  • Unique for every page
  • Matches page content

Heading structure

<!-- ❌ Poor structure -->
<h2>Welcome to Our Store</h2>
<h4>Products</h4>
<h1>Contact Us</h1>

<!-- ✅ Proper hierarchy -->
<h1>Blue Widgets - Premium Quality</h1>
<h2>Product Features</h2>
<h3>Durability</h3>
<h3>Design</h3>
<h2>Customer Reviews</h2>
<h2>Pricing</h2>

Heading guidelines:

  • Single <h1> per page (the main topic)
  • Logical hierarchy (don't skip levels)
  • Include keywords naturally
  • Descriptive, not generic

Image SEO

<!-- ❌ Poor image SEO -->
<img src="IMG_12345.jpg" />

<!-- ✅ Optimized image -->
<img
  src="blue-widget-product-photo.webp"
  alt="Blue widget with chrome finish, side view showing control panel"
  width="800"
  height="600"
  loading="lazy"
/>

Image guidelines:

  • Descriptive filenames with keywords
  • Alt text describes the image content
  • Compressed and properly sized
  • WebP/AVIF with fallbacks
  • Lazy load below-fold images

Internal linking

<!-- ❌ Non-descriptive -->
<a href="/products">Click here</a>
<a href="/widgets">Read more</a>

<!-- ✅ Descriptive anchor text -->
<a href="/products/blue-widgets">Browse our blue widget collection</a>
<a href="/guides/widget-maintenance">Learn how to maintain your widgets</a>

Linking guidelines:

  • Descriptive anchor text with keywords
  • Link to relevant internal pages
  • Reasonable number of links per page
  • Fix broken links promptly
  • Use breadcrumbs for hierarchy

Structured data (JSON-LD)

Organization

<script type="application/ld+json">
  {
    "@context": "https://schema.org",
    "@type": "Organization",
    "name": "Example Company",
    "url": "https://example.com",
    "logo": "https://example.com/logo.png",
    "sameAs": ["https://twitter.com/example", "https://linkedin.com/company/example"],
    "contactPoint": {
      "@type": "ContactPoint",
      "telephone": "+1-555-123-4567",
      "contactType": "customer service"
    }
  }
</script>

Article

<script type="application/ld+json">
  {
    "@context": "https://schema.org",
    "@type": "Article",
    "headline": "How to Choose the Right Widget",
    "description": "Complete guide to selecting widgets for your needs.",
    "image": "https://example.com/article-image.jpg",
    "author": {
      "@type": "Person",
      "name": "Jane Smith",
      "url": "https://example.com/authors/jane-smith"
    },
    "publisher": {
      "@type": "Organization",
      "name": "Example Blog",
      "logo": {
        "@type": "ImageObject",
        "url": "https://example.com/logo.png"
      }
    },
    "datePublished": "2024-01-15",
    "dateModified": "2024-01-20"
  }
</script>

Product

<script type="application/ld+json">
  {
    "@context": "https://schema.org",
    "@type": "Product",
    "name": "Blue Widget Pro",
    "image": "https://example.com/blue-widget.jpg",
    "description": "Premium blue widget with advanced features.",
    "brand": {
      "@type": "Brand",
      "name": "WidgetCo"
    },
    "offers": {
      "@type": "Offer",
      "price": "49.99",
      "priceCurrency": "USD",
      "availability": "https://schema.org/InStock",
      "url": "https://example.com/products/blue-widget"
    },
    "aggregateRating": {
      "@type": "AggregateRating",
      "ratingValue": "4.8",
      "reviewCount": "1250"
    }
  }
</script>

FAQ

<script type="application/ld+json">
  {
    "@context": "https://schema.org",
    "@type": "FAQPage",
    "mainEntity": [
      {
        "@type": "Question",
        "name": "What colors are available?",
        "acceptedAnswer": {
          "@type": "Answer",
          "text": "Our widgets come in blue, red, and green."
        }
      },
      {
        "@type": "Question",
        "name": "What is the warranty?",
        "acceptedAnswer": {
          "@type": "Answer",
          "text": "All widgets include a 2-year warranty."
        }
      }
    ]
  }
</script>

Breadcrumbs

<script type="application/ld+json">
  {
    "@context": "https://schema.org",
    "@type": "BreadcrumbList",
    "itemListElement": [
      {
        "@type": "ListItem",
        "position": 1,
        "name": "Home",
        "item": "https://example.com"
      },
      {
        "@type": "ListItem",
        "position": 2,
        "name": "Products",
        "item": "https://example.com/products"
      },
      {
        "@type": "ListItem",
        "position": 3,
        "name": "Blue Widgets",
        "item": "https://example.com/products/blue-widgets"
      }
    ]
  }
</script>

Validation

Test structured data at:


Mobile SEO

Responsive design

<!-- ❌ Not mobile-friendly -->
<meta name="viewport" content="width=1024" />

<!-- ✅ Responsive viewport -->
<meta name="viewport" content="width=device-width, initial-scale=1" />

Tap targets

/* ❌ Too small for mobile */
.small-link {
  padding: 4px;
  font-size: 12px;
}

/* ✅ Adequate tap target */
.mobile-friendly-link {
  padding: 12px;
  font-size: 16px;
  min-height: 48px;
  min-width: 48px;
}

Font sizes

/* ❌ Too small on mobile */
body {
  font-size: 10px;
}

/* ✅ Readable without zooming */
body {
  font-size: 16px;
  line-height: 1.5;
}

International SEO

Hreflang tags

<!-- For multi-language sites -->
<link rel="alternate" hreflang="en" href="https://example.com/page" />
<link rel="alternate" hreflang="es" href="https://example.com/es/page" />
<link rel="alternate" hreflang="fr" href="https://example.com/fr/page" />
<link rel="alternate" hreflang="x-default" href="https://example.com/page" />

Language declaration

<html lang="en">
  <!-- or -->
  <html lang="es-MX"></html>
</html>

SEO audit checklist

Critical

  • HTTPS enabled
  • robots.txt allows crawling
  • No noindex on important pages
  • Title tags present and unique
  • Single <h1> per page

High priority

  • Meta descriptions present
  • Sitemap submitted
  • Canonical URLs set
  • Mobile-responsive
  • Core Web Vitals passing

Medium priority

  • Structured data implemented
  • Internal linking strategy
  • Image alt text
  • Descriptive URLs
  • Breadcrumb navigation

Ongoing

  • Fix crawl errors in Search Console
  • Update sitemap when content changes
  • Monitor ranking changes
  • Check for broken links
  • Review Search Console insights

Tools

ToolUse
Google Search ConsoleMonitor indexing, fix issues
Google PageSpeed InsightsPerformance + Core Web Vitals
Rich Results TestValidate structured data
LighthouseFull SEO audit
Screaming FrogCrawl analysis

References

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中文简介正在准备中。当前显示英语简介。

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