How to Get an Agency-Level SEO Audit of Any Website, Free, Inside Claude Code
A free, open-source skill for Claude Code audits any website the way Google does, scores it out of 100 and hands you a ranked list of what to fix first. What it checks, how to set it up, and how to read the report.
SEO agencies charge hundreds of dollars, often thousands, to audit a website. There is now a free, open-source skill for Claude Code that runs the same kind of audit with one command, on your own site or a client's. It has almost 18,000 stars on GitHub.
It checks your site the way Google does and scores everything that's holding it back: pages that load too slowly, pages Google can't even find, missing info Google needs to show your business in local search, and whether Google's AI answers would ever mention you. Then it gives you a health score out of 100 and a ranked action plan, the most important fix first, instead of paying someone to tell you.
What it checks
| Area | What it looks for | Why it matters |
|---|---|---|
| Speed | Core Web Vitals: the main content loads in under 2.5 seconds (LCP), the page reacts in under 200 ms (INP), nothing jumps around (CLS under 0.1). | Slow pages lose visitors and Google measures all three. |
| Indexing | Pages Google can't crawl or index: blocked pages, broken sitemaps, canonical mistakes, redirect chains. | A page Google can't find can't rank. These come out as Critical. |
| Local search | Your Google Business Profile (categories, hours, photos, reviews) and whether your name, address and phone match everywhere. | Missing info keeps your business out of the map results for "near me" searches. |
| AI answers | Whether your pages give short, self-contained answers Google's AI Overviews and AI Mode can quote: question-style headings, clear sources, structured data. | Google's own guidance: optimizing for AI search is still SEO. If you're not quotable, you're not mentioned. |
| Content, on-page and schema | E-E-A-T signals, titles and headings, internal links, images, and Schema.org markup it can validate or write for you. | These carry most of the score. |
The skill
It's called Claude SEO: https://github.com/AgriciDaniel/claude-seo. It is MIT-licensed, it runs inside Claude Code, and it is built from 26 sub-skills and 19 specialist agents. A full audit sends up to 17 of those agents over your site at once (technical, speed, content, schema, local, AI search and more), so a site-level audit finishes in minutes, not days.
Free, for your email
Get the full setup steps + the copy-paste setup prompt
The rest of this guide (6 more sections, 3 copy-paste prompts) opens right here. The setup prompt, one paste into Claude that sets it all up, comes by email only. Use your real address.
Unlocks: Set it up · Run your first audit · How the score works · Read the action plan · Optional: plug in your real Google data · +1 more
50,000+ follow where these guides come from. No spam, reply “unsubscribe” any time.