Technical SEO Expert

Overview

Focuses on SEO optimization at the technical level of websites, helping solo enterprises ensure their websites meet search engine requirements technically, and improve crawling efficiency, indexing quality, and user experience.

When to Use This Skill

Website technical problem diagnosis and repair
Page performance optimization (Core Web Vitals)
Structured Data (Schema Markup) implementation
Mobile experience optimization
Crawling and indexing problem troubleshooting
Website migration and technical change SEO audit
HTTPS and security configuration
URL standardization and redirection management

Core Concepts

1. Core Web Vitals Optimization

Core indicator standards (2024):

LCP (Largest Contentful Paint) - 最大内容绘制
├── 优秀：< 2.5 秒
├── 需要改进：2.5 - 4 秒
└── 差：> 4 秒
└── 优化方法：CDN、缓存、图片优化、代码分割

FID (First Input Delay) - 首次输入延迟（已替换为 INP）
INP (Interaction to Next Paint) - 交互到下次绘制
├── 优秀：< 200 毫秒
├── 需要改进：200 - 500 毫秒
└── 差：> 500 毫秒
└── 优化方法：减少 JavaScript 体积、事件处理优化、Web Worker

CLS (Cumulative Layout Shift) - 累积布局偏移
├── 优秀：< 0.1
├── 需要改进：0.1 - 0.25
└── 差：> 0.25
└── 优化方法：图片尺寸固定、字体加载优化、广告位预留

Performance optimization tools:

Google PageSpeed Insights
Lighthouse
WebPageTest
Chrome DevTools Performance panel
GTmetrix

2. Structured Data (Schema Markup)

Common Schema types:

json

// Article Schema（文章页）
{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "文章标题",
  "author": {
    "@type": "Person",
    "name": "作者名"
  },
  "datePublished": "2024-01-15",
  "dateModified": "2024-01-15",
  "image": "图片URL",
  "publisher": {
    "@type": "Organization",
    "name": "网站名",
    "logo": {
      "@type": "ImageObject",
      "url": "Logo URL"
    }
  }
}

// Product Schema（产品页）
{
  "@context": "https://schema.org",
  "@type": "Product",
  "name": "产品名称",
  "description": "产品描述",
  "image": "产品图片",
  "brand": {
    "@type": "Brand",
    "name": "品牌名"
  },
  "offers": {
    "@type": "Offer",
    "price": "99.00",
    "priceCurrency": "CNY",
    "availability": "https://schema.org/InStock"
  },
  "aggregateRating": {
    "@type": "AggregateRating",
    "ratingValue": "4.5",
    "reviewCount": "128"
  }
}

// FAQ Schema（常见问题页）
{
  "@context": "https://schema.org",
  "@type": "FAQPage",
  "mainEntity": [
    {
      "@type": "Question",
      "name": "问题1",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "答案1"
      }
    },
    {
      "@type": "Question",
      "name": "问题2",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "答案2"
      }
    }
  ]
}

// LocalBusiness Schema（本地商家）
{
  "@context": "https://schema.org",
  "@type": "LocalBusiness",
  "name": "商家名称",
  "address": {
    "@type": "PostalAddress",
    "streetAddress": "街道地址",
    "addressLocality": "城市",
    "addressRegion": "省份",
    "postalCode": "邮编"
  },
  "telephone": "+86-xxx-xxxx-xxxx",
  "openingHours": "Mo-Fr 09:00-18:00",
  "geo": {
    "@type": "GeoCoordinates",
    "latitude": "39.9042",
    "longitude": "116.4074"
  }
}

Schema implementation checklist:

markdown

- [ ] 使用 JSON-LD 格式（Google 推荐）
- [ ] 放置在 <head> 或 <body> 中
- [ ] 通过 Rich Results Test 验证
- [ ] 确认没有语法错误
- [ ] 对应页面类型匹配 Schema 类型

3. Mobile Optimization

Mobile-first strategy:

响应式设计：
├── viewport meta 标签正确配置
├── 图片响应式 srcset
├── CSS 媒体查询适配
└── 触摸目标间距 >= 48px

移动性能：
├── 移动端 LCP < 2.5 秒
├── 首次渲染 < 1.8 秒
└── 交互延迟 < 100 毫秒

用户体验：
├── 字体大小 >= 16px（避免自动缩放）
├── 水平滚动条避免
└── 弹窗和插页式广告规范

Mobile-friendliness testing:

Google Mobile-Friendly Test
Chrome DevTools Device Mode
BrowserStack cross-device testing

4. Crawling and Indexing Management

robots.txt best practices:

User-agent: *
Allow: /
Disallow: /admin/
Disallow: /private/
Disallow: /checkout/
Disallow: /cart/

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

Crawl-delay: 1

XML Sitemap configuration:

xml

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

Canonical URL:

html

<!-- 防止重复内容问题 -->
<link rel="canonical" href="https://example.com/canonical-page/" />

<!-- 处理参数和跟踪码 -->
<link rel="canonical" href="https://example.com/product/?utm_source=google" />

5. HTTPS and Security

Security checklist:

markdown

- [ ] 全站 HTTPS
- [ ] SSL 证书有效且未过期
- [ ] HTTP 到 HTTPS 301 重定向
- [ ] HSTS 头配置
- [ ] 混合内容修复（HTTP 资源）
- [ ] 安全Headers配置（Content-Security-Policy 等）

6. Common Technical Problem Diagnosis

Issue: Page not indexed

诊断步骤：
1. 检查 robots.txt 是否阻止抓取
2. 检查页面 canonical 是否指向其他URL
3. 使用 URL Inspection Tool 检查索引状态
4. 检查页面是否返回正确 HTTP 状态码
5. 审查页面内容和质量

Issue: Crawl budget waste

优化建议：
1. 清理低价值页面（空页面、薄内容）
2. 设置参数处理规则（Google Search Console）
3. 优化内部链接结构
4. 使用 noindex 控制非必要页面索引
5. 提交 XML Sitemap 帮助蜘蛛发现新内容

Issue: Duplicate content

解决方案：
1. 统一 URL 格式（带/不带 www）
2. 设置 canonical 标签
3. 处理 URL 参数问题
4. 使用 301 重定向合并相似页面
5. 创建独特有价值的内容

Technical SEO Checklist (Quick Deployment for Solo Enterprises)

Week 1: Basic Configuration

Day 1-2：技术审计
- 运行 Site Audit
- 识别关键问题（索引、速度、移动端）
- 制定修复优先级

Day 3-4：基础修复
- 配置 robots.txt
- 提交 XML Sitemap
- 设置 canonical URLs
- 启用 HTTPS

Day 5-7：性能基础
- 图像压缩和格式优化
- 启用浏览器缓存
- 配置 CDN（如使用）

Week 2: Advanced Optimization

Day 1-2：结构化数据
- 实现 Article/Product Schema
- 通过测试工具验证
- 监控 Rich Results 表现

Day 3-4：Core Web Vitals
- LCP 优化（图片、服务器响应）
- CLS 优化（布局稳定性）
- INP 优化（JavaScript 执行）

Day 5：监控设置
- Google Search Console
- Google Analytics 4
- 排名追踪工具配置

Best Practices

Progressive optimization: Start small and improve continuously
Monitor changes: Monitor indexing status after any technical changes
Document records: Record all technical changes and their effects
Backup first: Ensure rollback is possible before major changes
Test environment: Verify in the test environment before major changes

Tools & Resources

Free Tools

Google Search Console
Google PageSpeed Insights
Lighthouse
Schema Markup Validator
Rich Results Test
Mobile-Friendly Test
Screaming Frog SEO Spider (Free version for 500 URLs)

Paid Tools

Ahrefs Site Audit
SEMrush
Moz Pro
Screaming Frog (Premium version)
GTmetrix Pro

Common Pitfalls

Ignoring mobile user experience
Incorrect implementation of structured data
Over-reliance on JavaScript rendering
Ignoring Core Web Vitals
Incorrect robots.txt configuration
Ignoring HTTPS security warnings

seo-technical-expert

NPX Install

Tags

SKILL.md Content (Chinese)