seo-audit

name	seo-audit
description	Audit a website for technical, on-page, and content SEO issues. Use when the user mentions SEO audit, technical SEO, rankings drop, page speed, Core Web Vitals, crawl errors, or indexing issues.
license	MIT
compatibility	claude-code opencode github-copilot devin pi cursor

SEO Audit

Identify SEO issues and provide actionable recommendations.

Before starting

Ask:

• What type of site is it? (SaaS, e-commerce, blog, local)
• What are the priority pages or keywords?
• Any known issues or recent changes?
• Search Console or analytics access?

Priority order

1. Crawlability and indexation
2. Technical foundations
3. On-page optimization
4. Content quality
5. Authority and links

Technical checks

• robots.txt: no unintentional blocks, sitemap reference
• Sitemap: valid, submitted, indexable URLs
• Indexation: site:domain, canonicals, noindex, soft 404s
• Core Web Vitals: LCP < 2.5s, INP < 200ms, CLS < 0.1
• Mobile: responsive, viewport, tap targets
• HTTPS: valid certificate, no mixed content, redirects
• URL structure: lowercase, hyphens, no unnecessary parameters

On-page checks

• Unique title tags (50-60 chars)
• Unique meta descriptions (150-160 chars)
• One H1 per page with primary keyword
• Image alt text, compressed, modern formats
• Internal linking, no orphan pages
• Clear keyword targeting without cannibalization

Content checks

• E-E-A-T signals: experience, expertise, authority, trust
• Sufficient depth for the topic
• Updated and current information
• No thin or duplicate content

International SEO

• Self-referencing hreflang with return tags
• Valid language-region codes
• x-default present
• No cross-locale canonicals

Schema markup

web_fetch and curl cannot reliably detect JS-injected JSON-LD. Use a browser tool, Google's Rich Results Test, or a rendered export.

Output

Produce a report with:

• Executive summary and top 3-5 priorities
• Technical findings (issue, impact, evidence, fix, priority)
• On-page findings
• Content findings
• Prioritized action plan