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SEO Audit (SEOmator)

Audits any website across 373 rules and 20 categories via the SEOmator CLI, and diffs two runs to show what a deploy changed.

Marketing & SEOIntermediate★ 451⑂ 64AI score 10/10Last updated: Sep 22, 2026

What it does

  • Drives the SEOmator CLI to audit a site against 373 rules across 20 categories: core SEO, performance, links, images, security, technical SEO, crawlability, structured data, JS rendering, accessibility, content, E-E-A-T, i18n, AI/GEO readiness and more.
  • Returns a 0–100 health score with an A–F grade, per-category pass/warn/fail counts, affected URLs grouped by rule, and concrete fix suggestions.
  • Offers --format llm, a compact XML report 50–70% smaller than JSON, plus seomator compare to diff two stored audits rule-by-rule.
  • Documents exit codes (0 ok / 1 low score or regression / 2 run failed) so it works as a CI gate with --fail-on-regression.

Who it's for

  • SEO specialists and marketers who regularly health-check their own or client sites.
  • Frontend/fullstack developers who want to catch SEO and accessibility regressions per deploy.
  • Site owners diagnosing broken links, redirect chains, canonicals, hreflang and schema in one pass.

Examples

  1. "Check example.com for SEO issues" → seomator audit https://example.com --format llm --no-cwv for a fast single-page report.
  2. "Do a thorough 100-page audit" → --crawl -m 100 to include click depth and orphan-page analysis.
  3. "Did this deploy make anything worse?" → audit before and after, then seomator compare example.com --json for a rule-level diff.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/seo-skills/seo-audit-skill/HEAD/skill/SKILL.md

What I want: (describe your task here)

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↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skill folder from the GitHub repo seo-skills/seo-audit-skill into my ~/.claude/skills/seo-skills-seo-audit/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/seo-skills/seo-audit-skill.git /tmp/seo-audit-skill && cp -r /tmp/seo-audit-skill/skill ~/.claude/skills/seo-audit && npm install -g @seomator/seo-audit

⚠ This is a third-party skill. Check the source repository before installing.

  1. Confirm Node.js 20.3+ and npm are available: node -v
  2. Install the CLI globally: npm install -g @seomator/seo-audit
  3. Verify your environment: seomator self doctor (install Chrome/Chromium if you want Core Web Vitals and JS rendering checks)
  4. Clone the skill: git clone https://github.com/seo-skills/seo-audit-skill.git
  5. Copy it into your Claude skills folder: cp -r seo-audit-skill/skill ~/.claude/skills/seo-audit
  6. Restart Claude Code, then create a config in your project directory: seomator init -y
  7. Ask something like "Run an SEO audit on https://mysite.com" to trigger the skill.
View source on GitHub ↗License: MIT