Seo Audit

SEO Audit Skill

Perform comprehensive SEO audits with scored categories and actionable recommendations.

Audit Categories (each scored /10)

1. Indexing (robots.txt, sitemap, canonicals)

Check:

• [ ] robots.txt exists and is properly configured
• [ ] XML sitemap exists and is submitted to Search Console
• [ ] Canonical tags present on all pages
• [ ] No accidental noindex on important pages
• [ ] Meta robots directives are intentional
• [ ] Hreflang tags (if multilingual)

2. On-Page SEO

Check:

• [ ] Unique title tags on every page (under 60 chars)
• [ ] Meta descriptions on every page (under 160 chars)
• [ ] H1 tag — exactly one per page, includes primary keyword
• [ ] Heading hierarchy (H1 → H2 → H3, no skipping)
• [ ] Image alt text on all images
• [ ] Internal linking structure
• [ ] Keyword density (natural, not stuffed)
• [ ] URL structure (clean, descriptive, hyphenated)

3. Technical SEO

Check:

• [ ] Page load speed (Core Web Vitals targets)
• [ ] Mobile responsiveness
• [ ] HTTPS everywhere (no mixed content)
• [ ] Proper redirects (301 not 302 for permanent)
• [ ] No broken links (4xx errors)
• [ ] Clean HTML (no render-blocking resources)
• [ ] Lazy loading for images
• [ ] Minified CSS/JS

4. Schema / Structured Data

Check:

• [ ] JSON-LD format (preferred over microdata)
• [ ] Organization schema on homepage
• [ ] Article schema on blog posts
• [ ] BreadcrumbList for navigation
• [ ] FAQ schema where applicable
• [ ] LocalBusiness schema (if local business)
• [ ] Valid schema (test with Google's Rich Results Test)

5. Content Quality

Check:

• [ ] Unique, valuable content (not thin pages)
• [ ] Readability score appropriate for audience
• [ ] Target keywords present naturally
• [ ] Fresh content / regular updates
• [ ] Internal links between related content
• [ ] External links to authoritative sources
• [ ] No duplicate content across pages

6. Security Headers

Check:

• [ ] Content-Security-Policy (CSP)
• [ ] Strict-Transport-Security (HSTS)
• [ ] X-Frame-Options
• [ ] X-Content-Type-Options
• [ ] Referrer-Policy
• [ ] Permissions-Policy

Content SEO Capabilities

Beyond auditing, this skill can also:

• Keyword research guidance — identify primary/secondary keywords for a topic
• On-page optimization — optimize existing blog posts for target keywords
• Internal linking strategy — map content clusters and suggest link opportunities
• Meta tag optimization — write compelling title tags and meta descriptions
• Content gap analysis — identify topics competitors cover that you don't

Output Format

# SEO Audit: [Site Name]

**URL:** [site URL]
**Date:** [audit date]
**Overall Score:** [X/60]

| Category | Score | Status |
|----------|-------|--------|
| Indexing | X/10 | [emoji] |
| On-Page | X/10 | [emoji] |
| Technical | X/10 | [emoji] |
| Schema | X/10 | [emoji] |
| Content | X/10 | [emoji] |
| Security Headers | X/10 | [emoji] |

## Critical Issues
[numbered list — must fix]

## Warnings
[numbered list — should fix]

## Recommendations
[prioritized action items with code examples where applicable]

## What's Working Well
[positive findings to maintain]

Save audit report to _claude-output/seo-audit-[domain]-[date].md

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: rmichak
• Source: rmichak/claude-skills
• License: MIT

Install and usage instructions live in the source repository linked above.