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SEO Audit (SEOmator)

Audit any website against 251 rules in 20 categories via the SEOmator CLI and get an LLM-optimized report.

Marketing & SEOBeginner★ 377⑂ 50AI score 10/10Last updated: Jul 20, 2026

What it does

  • Lets Claude drive the seomator CLI to audit a site against 251 rules across 20 categories.
  • Covers core SEO, performance (LCP/CLS/FCP/TTFB/INP), broken links and redirect chains, images, security headers and SSL, structured data, JavaScript rendering/SSR, accessibility, content duplication, hreflang, and AI/GEO readiness (semantic HTML, llms.txt, AI bot access).
  • 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.
  • Supports llm (compact XML, 50–70% smaller than JSON), json, html, markdown and console output, and hardens site-derived text against indirect prompt injection.

Who it's for

  • SEO specialists and marketers who need repeatable audits of their own or client sites.
  • Web developers checking technical SEO regressions before and after deployments.
  • Site and store owners who want to spot broken links, missing meta tags, and slow pages themselves.

Usage examples

  1. "Check example.com for SEO issues" → seomator audit https://example.com --format llm --no-cwv.
  2. "Do a thorough crawl of up to 100 pages" → seomator audit https://example.com --crawl -m 100 --format llm --no-cwv.
  3. "Give me a shareable report" → seomator audit https://example.com --crawl -m 20 --format html -o seo-report.html.
  4. "Only check JS rendering and redirects" → seomator audit https://example.com -c js,redirect --format llm.

· · · 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.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ 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.m folder from the GitHub repo seo-skills/seo-audit-skill into my ~/.claude/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 ~/.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 18+ is installed: node -v
  2. Install the CLI globally: npm install -g @seomator/seo-audit
  3. Verify your environment: seomator self doctor (install Chrome/Chromium/Edge if you want Core Web Vitals and JS rendering data)
  4. Install the skill files: git clone https://github.com/seo-skills/seo-audit-skill.git ~/.claude/skills/seo-audit
  5. Create a config in your project folder: seomator init -y (or --preset blog, --preset ecommerce, --preset ci)
  6. Restart Claude Code and ask something like "Audit https://example.com for SEO issues".
View source on GitHub ↗License: MIT