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SEO Audit (SEOmator)

Runs the SEOmator CLI to audit any site against 251 SEO, performance, security, JS-rendering and AI-readiness rules, returning scores and concrete fixes.

Marketing & SEOBeginner★ 381⑂ 51AI score 9/10Last updated: Jul 20, 2026

What it does

  • Drives the SEOmator CLI (seomator audit) to crawl a site and check it against 251 rules across 20 categories.
  • Returns a 0–100 health score with an A–F grade, per-category pass/warn/fail counts, affected URLs grouped by rule, and actionable fix suggestions.
  • Coverage includes core SEO, Core Web Vitals (LCP/CLS/INP), broken links and redirect chains, image alt/format issues, security headers and SSL, structured data, accessibility, hreflang, E-E-A-T, plus AI/GEO readiness (semantic HTML, llms.txt, AI bot access).
  • Recommends --format llm (compact XML, 50–70% smaller than JSON) for agents; HTML, Markdown and JSON outputs are available for sharing or CI.
  • Includes practical flags — category scoping (-c core,security,js), cache bypass (--refresh), resumable crawls (--resume) — and a troubleshooting section.

Who it's for

  • SEO specialists and marketers who audit their own or client sites regularly.
  • Web developers checking for technical SEO regressions before/after deploys, including SSR/JS-rendering validation.
  • Solo site owners and freelancers who want Claude to find issues and then implement the fixes.
  • Anyone comfortable with a terminal and a global npm install (Node.js 18+).

Examples

  1. "Check example.com for SEO issues" → seomator audit https://example.com --format llm --no-cwv for a fast single-page read.
  2. "Do a thorough audit of up to 100 pages" → --crawl -m 100, then fix by severity and category weight.
  3. "Make a report I can share" → --format html -o seo-report.html produces a standalone HTML report.
  4. "Only check JS rendering and redirects" → -c js,redirect narrows the run.

· · · 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 && cp -r 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 18 or newer: 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 and ask something like "Audit https://mydomain.com for SEO issues".
  7. Optionally run seomator init once inside your project folder to create a seomator.toml config for consistent future audits.
View source on GitHub ↗License: MIT