Is the SEO Audit skill free?

Yes. The skill itself is free from coreyhaines31/marketingskills. SkillProof publishes the install command and an independent test verdict at no cost.

What is the SEO Audit SkillProof Score?

9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.

How do I install SEO Audit?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use SEO Audit with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

SEO Audit

Structured technical/on-page/content SEO audit that explicitly flags a real trap: static fetch tools can't see JS-injected schema markup.

by coreyhaines31 · coreyhaines31/marketingskills

Tested · Works Featured

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.6/10
Tested: Jul 14, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · c525957

Best concrete finding: the skill catches a real false-positive trap before you make it -- it explicitly warns that web_fetch/curl strip client-side-injected JSON-LD, so 'no schema found' from a raw fetch is often wrong; a baseline pass without this skill would have reported that false negative with confidence.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 9/10
Docs & honesty 5/5

What SEO Audit does

Runs a 5-tier priority audit (crawlability & indexation, technical foundations, on-page optimization, content quality, authority) and outputs an Executive Summary plus Issue/Impact/Evidence/Fix/Priority findings and a phased action plan. Triggers on audit, technical-SEO, traffic-drop, and ranking-loss requests. Explicitly warns that web_fetch/curl strip JSON-LD injected client-side by CMS SEO plugins (AIOSEO, Yoast, RankMath), steering the user to a browser tool or Rich Results Test instead of reporting a false 'no schema found.'

How to install SEO Audit

git clone https://github.com/coreyhaines31/marketingskills
cd marketingskills
mkdir -p ~/.claude/skills
cp -r skills/seo-audit ~/.claude/skills/seo-audit

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger SEO Audit

/seo-audit Structured technical/on-page/content SEO audit that explicitly flags a real trap: static fetch tools can't see JS-injected schema markup.

It also activates on plain-language prompts like these:

Run a full technical SEO audit of my site with fixes
Check my site's crawlability and Core Web Vitals issues
Audit my content quality and give a prioritized fix list

Appears in

Frequently asked questions

Is the SEO Audit skill free?: Yes. The skill itself is free from coreyhaines31/marketingskills. SkillProof publishes the install command and an independent test verdict at no cost.
Does SEO Audit work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Tested · Works. Best concrete finding: the skill catches a real false-positive trap before you make it -- it explicitly warns that web_fetch/curl strip client-side-injected JSON-LD, so 'no schema found' from a raw fetch is often wrong; a baseline pass without this skill would have reported that false negative with confidence.
What is the SEO Audit SkillProof Score?: 9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.
How do I install SEO Audit?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use SEO Audit with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.