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Isvisible.ai
Isvisible.ai is a free web-based AI visibility audit tool that checks whether a website can be accessed by AI assistants and crawlers. It returns an instant 0-100 score, an agent-by-agent access map, and a downloadable report.
Overview
Isvisible.ai is a free AI visibility audit tool that checks whether a website can be accessed by major AI systems such as ChatGPT, Claude, Perplexity, and Google AI. It produces an instant score and a detailed access map so site owners can see which crawlers can reach their content.
The workflow is simple: enter a URL, let the tool evaluate robots.txt, llms.txt, and live crawler access, then review the report. The product is aimed at helping site owners understand how their content is exposed to AI assistants, search systems, and training crawlers.
What the tool does
Multi-signal access analysis
The report combines robots.txt and llms.txt checks with a live probe using crawler user agents to determine access.
AI visibility score
The score is presented on a 0-100 scale so you can quickly gauge how reachable the site is to AI systems.
Per-agent access map
Results include an agent-by-agent access map showing which crawlers are allowed or blocked.
Crawler-type breakdown
The site groups checks across search engines, AI training crawlers, and AI answer engines, rather than treating all bots the same.
Fast report output
Reports are generated immediately and can be downloaded as a one-page PDF.
Common use cases
Audit AI discoverability
Check whether your site is reachable by AI assistants and search-linked AI systems before relying on them for discovery or citations.
Validate crawler access rules
Review robots.txt and llms.txt settings to identify crawlers that are blocked or allowed and adjust site rules accordingly.
Assess exposure to training and answer engines
See whether specific AI training or answer-engine crawlers can access your pages so you can make informed publishing or blocking decisions.
Communicate findings internally
Share a concise report with marketing, SEO, or technical stakeholders who need a clear summary of AI access status.
Pros and Cons
Pros
- Free to use with no signup or credit card required.
- Provides an immediate score rather than a delayed manual review.
- Combines robots.txt, llms.txt, and live probing instead of relying on a single signal.
- Breaks results down by individual crawler, which makes access issues easier to interpret.
- Includes a downloadable one-page PDF report.
Cons
- The source does not show pricing plan details beyond the free audit, so paid options or limits are unclear.
- The public pages provide limited documentation on integrations, exports beyond PDF, or team collaboration features.
FAQ
What does the AI visibility score show?
It checks whether a site is reachable by a set of AI-related crawlers and assistants, then returns an AI visibility score from 0 to 100 with an agent-by-agent access map.
What is llms.txt?
It is a text file at the root of a domain that provides AI systems with a clean summary of the site’s content. The site says it is not required, but publishing one can help AI answer engines understand the site.
Which AI crawlers does the tool check?
The site says it checks 13 crawlers across three groups: search engines, AI training crawlers, and AI answer engines.
Is the AI visibility check free?
Yes. The site says the check is free and does not require an account or credit card.
Can an AI assistant use the tool directly?
Yes. The site says it has a public API, and the request format is published at isvisible.ai/llms.txt so AI assistants can read it and make the check.
Quick Facts
- Category
- AI visibility audit
- Platform
- Web app
- Primary users
- Website owners and SEO or content teams
- Source domain
- isvisible.ai
- Access model
- Free check with no signup required
- Report output
- 0-100 score, access map, and PDF download
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