isvisible.ai

isvisible.ai is a free web tool that checks whether AI crawlers can access a website, with instant AI visibility score, access map, and report.

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AI visibility auditing for website access

isvisible.ai is a free AI visibility audit tool that checks whether major AI systems can reach a website. It focuses on access for search engines, AI training crawlers, and AI answer engines, then turns the result into a score and access map.

To run a check, you paste a URL and the service evaluates robots.txt, llms.txt, and live access from crawlers such as Googlebot, Bingbot, GPTBot, ClaudeBot, and PerplexityBot. The output is an instant 0-100 AI visibility score with an agent-by-agent breakdown, which is meant to show where a site is reachable and where it is blocked.

What isvisible.ai includes

Instant URL-based checks

Paste a website URL and start the audit immediately. The homepage says no account or credit card is required, and results arrive in seconds.

13-crawler access map

The service checks whether access is allowed for 13 AI crawlers, including search, training, and answer-engine crawlers.

0-100 score with grade

The report shows an AI visibility score from 0 to 100 plus a letter grade, giving a quick summary of how accessible the site is to AI systems.

Agent-by-agent report

Reports break down access by crawler and show whether each one was allowed or blocked. The sample report also distinguishes robots.txt blocks from live request failures.

robots.txt and llms.txt analysis

The check evaluates robots.txt and llms.txt, then combines those signals with a live homepage probe using each crawler's user agent.

Shareable PDF output

The homepage says the report can be downloaded as a one-page PDF and is cached for 60 minutes.

Common ways to use isvisible.ai

Quick visibility check for a website
A site owner can paste a domain to see whether major AI systems can currently access pages and which crawlers are being blocked.
Audit crawler access rules
An SEO or content lead can review robots.txt and llms.txt behavior alongside crawler-specific access to spot gaps that may affect AI-assisted search and answer surfaces.
Understand different AI access types
A marketer or publisher can compare training crawlers with answer engines to understand whether content is reachable for model training, live browsing, or citation in AI responses.
Verify technical crawl behavior
A developer or technical operator can use the report to verify whether a site’s crawl controls and live server responses line up with expected access rules.
Share a concise report
A team can export or share the one-page PDF report as a compact snapshot of AI visibility for internal review.

Pros and Cons

Pros

No account or credit card is required to run a check, based on the homepage copy.
The report is immediate and specific, with both an overall score and an agent-by-agent access map.
The product explains its scoring inputs, including robots.txt, llms.txt, and live crawler access, which makes the output easier to interpret.
It covers multiple categories of AI access rather than only traditional search indexing.

Cons

The pricing page is missing or returns a 404, so the long-term pricing structure is not clear from the site content provided.
The source does not document integrations, exports beyond the PDF report, or account-based collaboration features.

FAQ

Is the AI visibility check free?

The check is free to run. The homepage says you can enter a URL and receive a report in seconds with no account or credit card required.

Which AI crawlers does isvisible.ai check?

The site says it checks 13 AI crawlers across three groups: search engines, AI training crawlers, and AI answer engines. Examples shown on the homepage include Googlebot, Bingbot, GPTBot, ClaudeBot, PerplexityBot, ChatGPT-User, and OAI-SearchBot.

How is the AI visibility score calculated?

The score combines two signals: whether AI agents can access your site and whether you publish an llms.txt file. The homepage also says agent access is worth 80 points and llms.txt is worth 20 points.

How do I run a check?

According to the homepage, you can paste your website address and the check starts immediately. The report is generated in seconds and includes an agent-by-agent access map.

Can an AI assistant submit a check for me?

The homepage says isvisible.ai has a public API and publishes the request format at its llms.txt file so AI assistants can read it. It also says AI assistants with web access can use that API to check a domain.