How to use Claude for SEO: which Claude for which job, and what data to give it

Can Claude do SEO for my website?

Yes for reading, comparing, counting and writing; no for anything that needs Google's own data. Claude can audit pages it can fetch, read a Search Console export, compare your page with those that rank and check a draft against its sources. Where you rank and who links to you, it only knows if you give it the data.

Ask without data and it still answers. Anthropic's documentation says so plainly: "Even the most advanced language models, like Claude, can sometimes generate text that is factually incorrect or inconsistent with the given context." In SEO this shows up as a plausible search volume, a ranking position or a menu label that does not exist.

Its own knowledge also stops at a date: Anthropic publishes a "Reliable knowledge cutoff" date for each model. A Google change, a new price or a renamed menu after that date is unknown to it until it reads a current page.

The working rule follows: each SEO question goes to Claude with the data that answers it, or with the instruction to go and read it (a web search, a page fetch, a crawl).

Which Claude should you use for each SEO job?

Use the chat for questions on data you paste or upload, Cowork for longer tasks that end in a file, and Claude Code when the job runs scripts on your machine or changes your site's code. All three can load the same skills. The table maps common SEO jobs to a place to run them and the data each needs.

In the chat, Anthropic says code execution and file creation is "available to all Claude users (Free, Pro, Max, Team, and Enterprise) on the web, Claude Desktop, and Claude Mobile", which is what lets Claude compute on an uploaded export. Cowork is available on paid plans. Claude Code is, in Anthropic's words, "Available in your terminal, IDE, desktop app, and browser."

• Site X-Ray: crawls your site and ranks the fixes, with the evidence for each
• Click Radar: turns Search Console exports into at most five actions
• Index Doctor: finds why pages are not indexed and groups fixes by template
• Odds Maker: reads the real first page and says whether to write
• Gap Hunter: builds a brief from what the top results miss
• Truth Serum: checks every claim of a draft at its source
• True North: a 30/60/90-day plan sized to your hours

What can't Claude know, and can you do without Ahrefs or Semrush?

Claude has none of Google's data: not your rankings, not search volume, not Google's index, not your backlinks. Most of it is free in Google Search Console, which Google calls "a free service": export it and give Claude the file. Exact search volume is the gap: Search Console only shows impressions for queries where you already appear.

Paid SEO suites can connect to Claude and add estimates of volume and backlinks. They help when a job needs those estimates. They are not needed to start: the rows above cover an audit, an indexation diagnosis, a Search Console reading and a decision on a keyword.

How do you use Claude Code for SEO?

Start Claude Code in your site's folder, put your exports beside it and ask one concrete question at a time. Anthropic describes it as a tool that "reads your codebase, edits files, runs commands, and integrates with your development tools". For SEO: a crawl run by a script, sums over large exports, template changes you review.

1. Install it from Anthropic's overview page. "Most surfaces require a Claude subscription or Anthropic Console account."
2. Open it in the folder that holds your site's source, or in an empty folder for an audit of a live site.
3. Put your Search Console exports in that folder, for the same dates, and ask a precise question: which pages lost the most clicks between these two periods, which titles do not match the query they appear for.
4. When a fact matters, ask Claude to read the raw page. Claude Code's documentation calls its page reader, WebFetch, "lossy by design" and suggests "curl via Bash for the unprocessed page".
5. Read each change to a template before it ships: one wrong canonical in a template is wrong on every page that uses it.

To avoid re-explaining your site every session, write its URL list, brand terms and house rules in a CLAUDE.md file in the folder. Anthropic: "Claude reads them at the start of every session."

How do you use Claude Cowork for SEO?

Use Cowork for SEO tasks that take several steps and end in a file: an audit as a spreadsheet, a brief as a document, a reading of this month's exports. Anthropic says Cowork "uses the same agentic architecture that powers Claude Code, with no terminal required". It is available on paid plans: Pro, Max, Team and Enterprise.

In Claude Desktop you can give Claude access to a folder on your computer, so the exports you download from Search Console are readable where they land. Anthropic's help center adds that tasks using files or apps on your computer "need Claude Desktop open".

Cowork loads the skills enabled on your account, not the ones in a folder on your machine. The install guide covers the upload.

Turn on web search for jobs that need today's results, such as a keyword decision or a brief: in the classic chat, open the "+" button and select "Web search". In the new experience there is no toggle, and Claude searches when it helps.

Anthropic is merging Cowork and chat into one conversation, rolling out gradually from Pro and Max plans. Its help center states that in the new experience "everything Claude Cowork does is available from any conversation". If your message box no longer shows separate Chat and Cowork options, you have it. The way to use Claude for SEO does not change.

• How to install a skill in Claude: Claude Code folders, and the upload in Claude.ai, Desktop and Cowork

Why does Claude get SEO facts wrong, and what rule fixes it?

The typical failure is a confident, plausible, false detail: a menu label that does not exist, last year's price, an old version, a statistic nobody published. The fix is one rule: no fact goes on a page until it is found word for word on its primary source, in the page's language, with the date of that reading.

1. List every checkable claim in the draft: prices, interface labels and menu paths, versions, numbers, quotes, dates.
2. For each, open the page of whoever creates the fact (the vendor, Google's help, the standard), not a blog that repeats it.
3. Search the exact string in the raw page. A summary is not proof: Claude Code's documentation warns that a result saying a page "doesn’t mention something may only mean the prompt didn’t ask about it".
4. Check labels on the source page in the language of your article. An English menu name in a French article is wrong even when it exists in English.
5. Correct the claim, date it with its source, or remove it. Anthropic recommends the same discipline for its own model: have Claude find a supporting quote for each claim, and "If it can't find a quote, it must retract the claim."

• Truth Serum: runs this check on a draft and returns a verdict and a correction per claim

Where do skills fit in SEO work with Claude?

A skill gives Claude a method, not data. The Agent Skills project's overview puts it simply: "At its core, a skill is a folder containing a SKILL.md file." That file tells Claude how to do one job. Claude reads each skill's description and loads the right one from your wording, so "audit my site" is enough.

The data still comes from your exports, your pages and the live results. Claude Code's documentation: "Claude uses skills when relevant, or you can invoke one directly with /skill-name." Skills run in Claude Code, Claude.ai, Claude Desktop and Cowork; in the apps, code execution must be on.

SEO Skills by PENRA, which this site sells, is 14 such skills, one per job (audit, indexation, Search Console, keyword decisions, briefs, fact-checking and others), and none of them needs a paid SEO tool. The author's own new site, macplus.pro, was worked with them: its Search Console shows 4.47k clicks and 59k impressions from 14 July to 12 October 2026, at an average position of 7.9. That is one site's result, not a forecast.

• How to install a skill in Claude: the steps for each Claude product, and what to check when a skill does not load
• The best Claude skills for SEO: free and paid options compared, with what each one needs

Is Claude or ChatGPT better for SEO?

Neither has Google's data, so the same limits apply to both: rankings, volume, the index and backlinks come from your exports, not the model. We know of no independent, current test that settles which does SEO better, and this site sells Claude skills: judge on your own task: same export, same question, each answer checked at the source.

What differs in practice is the setup: whether the assistant can search the web with citations, read your files, run code on them and follow a written method. Claude does all four, through web search, code execution and skills.

The skill format is not Claude-only: the Agent Skills project lists "ChatGPT & Codex" among the products that support it. Whether a given skill behaves the same there depends on the tools and scripts it expects. The pack sold here is built for Claude.

• Agent Skills: products that support the format