Free AI SEO / AEO / GEO tools
Is Your Website Ready for AI Search?
Free tools to check and fix how ChatGPT, Claude, Gemini and Perplexity can crawl, understand and use your website content. No signup.
Deterministic checks on publicly available signals — no account, nothing stored.
Start here
Two audits and a content checker that cover the whole picture. Each links you to the dedicated tool for anything it flags.
AI Visibility Audit
One URL, one run. Checks AI crawler access, robots.txt, llms.txt, structured data, and key page signals — with plain PASS / REVIEW / INFO results and a fix link for each.
Run the auditChatGPT Website Visibility Checker
The broader readiness audit: 22 technical, entity, content, and structured-data signals, scored, with a short list of what to fix first.
Check my websiteAI Citation Readiness Checker
An AEO content-structure check: is your page written so AI answer engines can locate and extract a clear answer? Headings, direct answers, definitions, sources, author signals — no citation score, just findings.
Check my pageBrowse the tools
Focused checkers and generators for one technical or content issue at a time.
AI crawlers & robots.txt
Whether AI search and training crawlers are allowed to fetch your pages.
AI Crawler Robots.txt Checker
See what your robots.txt says for the AI crawlers and control tokens from OpenAI, Anthropic, Perplexity, Google, Apple, Amazon and more — grouped by whether each does AI search, model training, or data-use control.
Check robots.txtAI Crawler Robots.txt Generator
Choose Allow or Block per AI crawler — grouped by role — and copy a ready-to-use robots.txt snippet for OpenAI, Anthropic, Perplexity, Google-Extended, Applebot-Extended and more.
Build robots.txtllms.txt
The optional Markdown file that hands AI tools a curated map of your key pages.
llms.txt Checker & Validator
Fetch a site's /llms.txt and validate its structure against the current proposal: title, summary, sections, Markdown links, and common issues.
Validate llms.txtllms.txt Generator
Fill in a form — site name, summary, sections, links — and get a spec-compliant llms.txt to copy.
Generate llms.txtStructured data
JSON-LD that states a page's type and key fields explicitly.
Guides
Background reading on how AI systems discover and use a site.
Audit → Fix → Recheck
Audit
Run the AI Visibility Audit on a page. Note every item marked REVIEW and read its “what to do next”.
Fix
Open the linked tool — robots.txt checker/generator, llms.txt checker/generator, schema checker, FAQ generator — and make the change on your site.
Recheck
Re-run the audit to confirm the item is cleared. robots.txt changes can take a day or so to propagate.
Found issues you don’t want to fix yourself?
Get hands-on help implementing what the free tools surface — AI crawler access, llms.txt, structured data, FAQ / schema and content structure.
What we can help with
- AI crawler / robots.txt configuration
- llms.txt setup and validation
- Structured data / JSON-LD fixes
- FAQ and schema implementation
- Technical AI-search readiness fixes
- AEO / content-structure improvements
Tell us what the check found and we will confirm scope before any paid work.
No ranking or citation guarantees. We confirm scope before any paid work.
Why these tools?
Deterministic where possible
The checkers fetch your public files and parse them with fixed rules. The same page produces the same result — no black-box scoring of things that can't be measured.
No fake AI-citation guarantees
We never claim a change will get you cited, mentioned, or ranked by ChatGPT or any AI system. The tools clear technical and structural blockers; the rest is outside any tool's control.
No signup for the core tools
Paste a URL, get a result. Nothing is stored, and no account is required to use any checker or generator.
Focused, not a dashboard
Each tool does one specific job — crawler access, llms.txt, schema, content structure — so the output is actionable, not a wall of metrics.
Frequently asked questions
What is AI Visibility Fixer?
A set of free tools for the technical and content side of AI search: checking whether AI crawlers can reach your site, whether your robots.txt and llms.txt are set up the way you intend, whether your structured data parses, and whether your content is structured so a clear answer can be extracted. Start with the AI Visibility Audit, then use the dedicated checker or generator for whatever it flags.
Which tool should I start with?
Run the AI Visibility Audit — it checks crawler access, robots.txt, llms.txt, structured data, and key page signals in one pass and links you to the specific tool to fix anything flagged. If you want a broader, scored readiness check, use the ChatGPT Website Visibility Checker. If your concern is how your content is written, use the AI Citation Readiness Checker.
Do these tools tell me whether ChatGPT has cited my site?
No. None of them query ChatGPT, Claude, Gemini, or Perplexity, and none can see whether a page has been cited, mentioned, or recommended. They analyse your site's own signals — crawler rules, files, markup, content structure.
Does passing these checks guarantee AI visibility or citations?
No. Passing means the common technical and structural blockers are cleared. Whether an AI system then discovers, cites, or recommends a page depends on relevance, competing sources, content quality, and provider-specific ranking that no external tool can see or influence.
Is there a score?
The ChatGPT Website Visibility Checker gives a 0–100 readiness score across 22 signals, because that check is a defined checklist. The AI Visibility Audit and AI Citation Readiness Checker deliberately do not produce a single score — they report each item as PASS / REVIEW / INFO / COULD NOT CHECK, because there is no public method that maps those signals to a probability of being cited.
What do GEO and AEO mean?
GEO (Generative Engine Optimization) and AEO (Answer Engine Optimization) refer to structuring a site so generative AI tools and answer engines can crawl, understand, and use its content. These tools cover the technical and structural parts of that work — crawler access, machine-readable files, structured data, and extractable content.