Seo Audit
Run SEOmator CLI audits on your site or client URLs and get scored reports across technical SEO, performance, security, and AI-readiness rules.
Overview
SEO Audit is an agent skill most often used in Launch (also Grow analytics, Ship perf) that runs SEOmator CLI site audits across 251 rules in 20 categories.
Install
npx skills add https://github.com/seo-skills/seo-audit-skill --skill seo-auditWhat is this skill?
- SEOmator CLI audits 251 rules across 20 categories with severity and affected URLs
- Covers core SEO, performance (LCP, CLS, FCP, TTFB, INP), security, JS rendering, and AI readiness
- Returns LLM-oriented reports with health scores and actionable fix suggestions
- Optional Chrome/Chromium for Core Web Vitals and JavaScript rendering checks
- MIT-licensed skill with Bash integration via allowed seomator:* tools
- 251 audit rules
- 20 SEO and technical categories
- SEOmator skill metadata version 3.0
Adoption & trust: 694 installs on skills.sh; 273 GitHub stars; 1/3 security scanners passed (skills.sh audits).
What problem does it solve?
You shipped or are about to ship a site but lack a single, agent-actionable picture of SEO, performance, and technical issues across URLs.
Who is it for?
Solo builders validating a launch URL, staging domain, or post-migration site with repeatable CLI audits inside Claude Code or Codex.
Skip if: Teams that only need keyword research or content calendars without technical crawling and rule-based site health scoring.
When should I use this skill?
Analyzing websites, debugging SEO issues, or checking site health with SEOmator CLI.
What do I get? / Deliverables
You receive an LLM-optimized SEOmator report with health scores, severities, and fix suggestions you can turn into tickets or follow-up agent fixes.
- LLM-optimized SEOmator audit report
- Categorized issues with severity and affected URLs
- Actionable fix suggestions per rule
Recommended Skills
Journey fit
Spans multiple journey phases - primary shelf plus alternate fits below.
Organic discoverability is the launch shelf for site-wide SEO and technical health audits before and after you go live. The skill wraps a dedicated SEO audit CLI—not distribution campaigns or ASO—so it belongs under launch/seo.
Where it fits
Baseline production URLs the week before announcement posts go live.
Check AI-readiness and structured signals when optimizing for AI search surfaces.
Re-audit blog templates after adding a new CMS component that might duplicate titles.
Run performance category rules with Chromium when INP or LCP spike after a deploy.
How it compares
Agent skill driving SEOmator CLI—not a hosted-only dashboard unless you also use their web UI separately.
Common Questions / FAQ
Who is seo-audit for?
Indie founders, solo devs, and small teams who want agent-driven technical SEO and site health checks via SEOmator from the terminal.
When should I use seo-audit?
At launch/seo before publishing a new domain; at grow/content after major template changes; and at ship/perf when investigating Core Web Vitals or JS rendering regressions.
Is seo-audit safe to install?
The skill runs local CLI audits and may fetch live URLs; review the Security Audits panel on this Prism page and npm package permissions before installing.
SKILL.md
READMESKILL.md - Seo Audit
# SEO Audit Skill Audit websites for SEO, technical, content, performance, security, JavaScript rendering, and AI readiness using the SEOmator CLI. SEOmator provides comprehensive website auditing by analyzing website structure and content against **251 rules** across **20 categories**. It provides a list of issues with severity levels, affected URLs, and actionable fix suggestions. ## Links * SEOmator npm package: [npmjs.com/package/@seomator/seo-audit](https://www.npmjs.com/package/@seomator/seo-audit) * GitHub repository: [github.com/seo-skills/seo-audit-skill](https://github.com/seo-skills/seo-audit-skill) * Web UI: [seomator.com/free-seo-audit-tool](https://seomator.com/free-seo-audit-tool) ## What This Skill Does This skill enables AI agents to audit websites for **251 rules** in **20 categories**, including: - **Core SEO** (19 rules): Canonical URLs, indexing directives, title uniqueness, canonical conflicts/loops - **Performance** (22 rules): LCP, CLS, FCP, TTFB, INP, compression, caching, minification, HTTP/2 - **Links** (19 rules): Broken links, redirect chains, anchor text, orphan pages, localhost/fragment links - **Images** (14 rules): Alt text, dimensions, lazy loading, modern formats, alt length, background images - **Security** (16 rules): HTTPS, HSTS, CSP, external link safety, leaked secrets, SSL expiry/protocol - **Technical SEO** (13 rules): robots.txt, sitemap.xml, URL structure, 404 pages, soft 404s, error codes - **Crawlability** (18 rules): Sitemap conflicts, indexability signals, canonical chains, pagination issues - **Structured Data** (13 rules): Schema.org markup, Article, Organization, FAQ, Product, Breadcrumb - **JavaScript Rendering** (13 rules): Rendered DOM checks, raw vs rendered mismatches, SSR detection - **Accessibility** (12 rules): ARIA labels, color contrast, form labels, landmarks, touch targets - **Content** (17 rules): Word count, readability, keyword density, duplicate detection, pixel widths - **Social** (9 rules): Open Graph tags, Twitter cards, share buttons, profile links - **E-E-A-T** (14 rules): Author bylines, citations, trust signals, about/contact pages, YMYL detection - **URL Structure** (14 rules): Keyword slugs, stop words, uppercase, underscores, session IDs, tracking params - **Redirects** (8 rules): Redirect loops, types (301/302), meta refresh, JavaScript redirects, broken redirects - **Mobile** (5 rules): Font sizes, horizontal scroll, intrusive interstitials, viewport issues - **Internationalization** (10 rules): lang attribute, hreflang validation (return links, conflicts, mismatches) - **HTML Validation** (9 rules): Doctype, charset, head structure, lorem ipsum, multiple titles/descriptions - **AI/GEO Readiness** (5 rules): Semantic HTML, AI bot access, llms.txt, schema drift - **Legal Compliance** (1 rule): Cookie consent The audit crawls the website, analyzes each page against audit rules, and returns a comprehensive report with: - Overall health score (0-100) with letter grade (A-F) - Category breakdowns with pass/warn/fail counts - Specific issues with affected URLs grouped by rule - Actionable fix recommendations ## When to Use Use this skill when you need to: - Analyze a website's SEO health - Debug technical SEO issues - Check for broken links and redirect chains - Validate meta tags, canonical URLs, and structured data - Audit security headers, SSL, and HTTPS - Check accessibility compliance - Analyze JavaScript rendering and SSR compatibility - Evaluat