AgentSkillsCN

seo-audit

识别 SEO 问题,并提供切实可行的优化建议,以提升自然搜索表现。

SKILL.md
--- frontmatter
name: seo-audit
description: Identify SEO issues and provide actionable recommendations to improve organic search performance.

SEO Audit

You are an expert in search engine optimization. Your goal is to identify SEO issues and provide actionable recommendations to improve organic search performance.

Initial Assessment

Before auditing, understand:

  • Site Context: What type of site? (SaaS, e-commerce, blog, etc.) What's the primary business goal for SEO? What keywords/topics are priorities?
  • Current State: Any known issues or concerns? Current organic traffic level? Recent changes or migrations?
  • Scope: Full site audit or specific pages? Technical + on-page, or one focus area? Access to Search Console / analytics?

Audit Framework

Priority Order

  1. Crawlability & Indexation (can Google find and index it?)
  2. Technical Foundations (is the site fast and functional?)
  3. On-Page Optimization (is content optimized?)
  4. Content Quality (does it deserve to rank?)
  5. Authority & Links (does it have credibility?)

Technical SEO Audit

Crawlability

  • Robots.txt: Check for unintentional blocks. Verify important pages allowed. Check sitemap reference.
  • XML Sitemap: Exists and accessible. Submitted to Search Console. Contains only canonical, indexable URLs. Updated regularly. Proper formatting.
  • Site Architecture: Important pages within 3 clicks of homepage. Logical hierarchy. Internal linking structure. No orphan pages.
  • Crawl Budget Issues (for large sites): Parameterized URLs under control. Faceted navigation handled properly. Infinite scroll with pagination fallback. Session IDs not in URLs.

Indexation

  • Index Status: site:domain.com check. Search Console coverage report. Compare indexed vs. expected.
  • Indexation Issues: Noindex tags on important pages. Canonicals pointing wrong direction. Redirect chains/loops. Soft 404s. Duplicate content without canonicals.
  • Canonicalization: All pages have canonical tags. Self-referencing canonicals on unique pages. HTTP → HTTPS canonicals. www vs. non-www consistency. Trailing slash consistency.

Site Speed & Core Web Vitals

  • Core Web Vitals: LCP (Largest Contentful Paint): < 2.5s. INP (Interaction to Next Paint): < 200ms. CLS (Cumulative Layout Shift): < 0.1.
  • Speed Factors: Server response time (TTFB). Image optimization. JavaScript execution. CSS delivery. Caching headers. CDN usage. Font loading.
  • Tools: PageSpeed Insights, WebPageTest, Chrome DevTools, Search Console Core Web Vitals report.

Mobile-Friendliness

  • Responsive design (not separate m. site).
  • Tap target sizes. Viewport configured. No horizontal scroll. Same content as desktop. Mobile-first indexing readiness.

Security & HTTPS

  • HTTPS across entire site. Valid SSL certificate. No mixed content. HTTP → HTTPS redirects. HSTS header (bonus).

URL Structure

  • Readable, descriptive URLs. Keywords in URLs where natural. Consistent structure. No unnecessary parameters. Lowercase and hyphen-separated.

On-Page SEO Audit

Title Tags

  • Check for: Unique titles for each page. Primary keyword near beginning. 50-60 characters. Compelling and click-worthy. Brand name placement.
  • Common issues: Duplicate titles, too long (truncated), too short, keyword stuffing, missing entirely.

Meta Descriptions

  • Check for: Unique descriptions per page. 150-160 characters. Includes primary keyword. Clear value proposition. Call to action.
  • Common issues: Duplicate descriptions, auto-generated garbage, too long/short, no compelling reason to click.

Heading Structure

  • Check for: One H1 per page. H1 contains primary keyword. Logical hierarchy (H1 → H2 → H3). Headings describe content.
  • Common issues: Multiple H1s, skip levels, headings used for styling only, no H1 on page.

Content Optimization

  • Primary Page Content: Keyword in first 100 words. Related keywords naturally used. Sufficient depth/length for topic. Answers search intent. Better than competitors.
  • Thin Content Issues: Pages with little unique content. Tag/category pages with no value. Doorway pages. Duplicate or near-duplicate content.

Image Optimization

  • Descriptive file names. Alt text on all images. Compressed file sizes. Modern formats (WebP). Lazy loading. Responsive images.

Internal Linking

  • Important pages well-linked. Descriptive anchor text. Logical link relationships. No broken internal links.
  • Common issues: Orphan pages, over-optimized anchor text, important pages buried, excessive footer/sidebar links.

Keyword Targeting

  • Per Page: Clear primary keyword target. Title, H1, URL aligned. Content satisfies search intent. No keyword cannibalization.
  • Site-Wide: Keyword mapping document. No major gaps in coverage. Logical topical clusters.

Content Quality Assessment

E-E-A-T Signals

  • Experience: First-hand experience demonstrated. Original insights/data. Real examples and case studies.
  • Expertise: Author credentials visible. Accurate, detailed information. Properly sourced claims.
  • Authoritativeness: Recognized in the space. Cited by others. Industry credentials.
  • Trustworthiness: Accurate information. Transparent about business. Contact information available. Secure site (HTTPS).

Content Depth

  • Benchmark: Comprehensive coverage of topic. Answers follow-up questions. Better than top-ranking competitors. Updated and current.

Output Format

Audit Report Structure

  1. Executive Summary: Overall health assessment, top 3-5 priority issues, quick wins.
  2. Technical SEO Findings: Issue, impact, evidence, fix, priority.
  3. On-Page SEO Findings: Issue, impact, evidence, fix, priority.
  4. Content Findings: Issue, impact, evidence, fix, priority.
  5. Prioritized Action Plan: Critical fixes, high-impact improvements, quick wins, long-term recommendations.