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isvisible.ai
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About isvisible.ai
isvisible.ai is a free AI visibility audit tool that checks whether major AI crawlers and assistants can access your website. It analyzes your robots.txt and llms.txt files and runs live probes against 13 AI crawlers across search engines, training bots, and answer engines. The tool delivers an instant 0-100 score with an agent-by-agent access map showing which platforms are allowed or blocked. No account or credit card is required, and results are returned in seconds. It is designed for website owners, developers, and marketers who want to ensure their content is discoverable by AI systems. The tool provides actionable insights to adjust site settings if AI crawlers are unintentionally blocked, improving visibility in AI-driven platforms.
Key features
- Checks access for 13 major AI crawlers including ChatGPT and Claude
- Analyzes robots.txt and llms.txt files for compliance
- Runs live probes to verify crawler access
- Provides an instant 0-100 visibility score
- Generates an agent-by-agent access map
- No account or credit card required
- Results delivered in seconds
- Free to use
Use cases
- Verify if your website content is accessible to AI crawlers
- Troubleshoot unintentional blocks preventing AI visibility
- Optimize site settings for better AI-driven discoverability
Pros
- Instant 0-100 AI visibility score with no account or credit card required
- Checks access for 13 major AI crawlers across search engines, training bots, and answer engines
- Analyzes both robots.txt and llms.txt files for comprehensive visibility assessment
- Provides an agent-by-agent access map showing which AI platforms are allowed or blocked
- Delivers results in seconds with a downloadable one-page PDF report
Cons
- Limited to checking only 13 specific AI crawlers, not all possible AI systems
- Results are cached for 60 minutes, so real-time changes may not be reflected immediately
- Does not provide automated fixes for blocked crawlers, only diagnostic insights
Frequently asked questions about isvisible.ai
What is an AI visibility score?
An AI visibility score shows how many AI crawlers and search engines can reach your site right now, out of 100 points. The score combines whether each AI agent is allowed to access your pages and whether you publish an llms.txt file.
What is robots.txt?
robots.txt is a text file at the root of your domain that tells crawlers, including search engines and AI bots, which parts of your site they can access. It is the same file that controls how Google indexes your pages.
What is llms.txt?
llms.txt is a newer file, published at yourdomain.com/llms.txt, that gives AI systems a clean, direct summary of your site's content. Publishing one is an easy way to tell AI answer engines what your site is about.
Which AI crawlers does isvisible.ai check?
The tool checks 13 crawlers across three categories: search engines like Googlebot and Bingbot, AI training crawlers like GPTBot and ClaudeBot, and AI answer engines like ChatGPT's live browsing and PerplexityBot.
Can I check a site using an AI assistant instead of the form?
Yes. isvisible.ai has a public API, and the exact request format is published at isvisible.ai/llms.txt so AI assistants can read it. You can ask ChatGPT, Claude, or any AI assistant with web access to check a domain using the isvisible.ai API.
Why would I want AI crawlers to access my site?
ChatGPT, Claude, Perplexity, and Google AI Overviews are becoming a new way people find and evaluate businesses. If your site blocks these crawlers, your content cannot be cited or recommended in AI answers, even if it ranks well in traditional search.
