Free check web
Free source (opens in a new tab)
Month
For: Site owners
Limits
- Results cached 60 minutes
- API limited to 20 requests per 60 seconds per IP
Includes
- 0-100 score
- 13 crawlers
1 more
- One-page PDF report
API included
Research & searchDocumented overviewLast checked Oct 2, 2026
isvisible.ai: Pricing, Features & Best Use Cases
Free web check that scores whether AI crawlers can access your site, based on robots.txt and llms.txt.
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Our take: isvisible.ai is useful for site owners who want a quick, free check of whether AI crawlers can reach their content.
Main limitation: It only checks crawler access and llms.txt, not whether AI assistants actually cite the site, and results are cached for 60 minutes.
Who isvisible.ai fits
isvisible.ai is useful for site owners who want a quick, free check of whether AI crawlers can reach their content. Based on the vendor's documentation, not on a hands-on test.
Best for: Site owners auditing AI crawler access
Also a good fit for
- SEO teams
Consider another tool if checks access only, not whether AI actually cites the site
Or if
- Results cached for 60 minutes
- API rate-limited to 20 requests per 60 seconds per IP
isvisible.ai pricing and usage limits
Prices checked Oct 2, 2026 on the official US pricing page. Prices and limits change often.
Free access and trial conditions
Free, no signup or credit card required.
Not applicable.
Paid plans: what changes as you upgrade
Usage caps, credits and extra costs
None stated.
Not applicable.
What is isvisible.ai, and how does it work?
isvisible.ai is a free web check: enter a URL and it reads robots.txt and llms.txt, then sends live requests using the user-agent strings of 13 AI crawlers such as GPTBot, ClaudeBot, PerplexityBot and Google-Extended to test access. It returns a 0-100 visibility score with an agent-by-agent access map. The homepage says no signup or credit card is needed and results arrive in seconds; the llms.txt also documents a keyless JSON API endpoint.
What you provide and what you get back
You provide
- Website URL
You get back
- 0-100 score with grade
- Agent-by-agent access map
- PDF report
Where you can use it
- Platforms
- Web, API
- Account
- Not required
Where isvisible.ai is most useful
Scenarios are worked out by our editors from the documentation; the actual result depends on your input and plan.
Check if AI crawlers can reach a site
- Who
- SEO specialists
- You provide
- A domain
- Expected result
- Score and which AI bots are blocked
- Plan needed
- Free
- Limitation
- Access only source (opens in a new tab)
Audit robots.txt for AI bots
- Who
- Site owners
- You provide
- robots.txt
- Expected result
- Check for AI crawler rules
- Plan needed
- Free
- Limitation
- Cannot edit the file source (opens in a new tab)
Check for an llms.txt file
- Who
- Developers
- You provide
- Domain
- Expected result
- Whether llms.txt exists
- Plan needed
- Free
- Limitation
- Presence is checked, not content quality source (opens in a new tab)
Key features and their practical limits
0-100 AI visibility score
Combines robots.txt rules, llms.txt presence and live requests into a single score. Summarizes visibility in one number.
13 AI crawlers checked
Tests access using user agents of 13 crawlers including GPTBot and ClaudeBot. Shows which platforms can see you.
robots.txt analysis
Reads robots.txt and checks for blocks. Finds accidental blocking.
llms.txt check
Looks for an llms.txt file on the domain. Shows AI-oriented signals.
isvisible.ai pros and cons
Reasons to choose isvisible.ai
- Free per the homepage You can run it without a signup documented source (opens in a new tab)
- No signup required You see the result almost at once documented source (opens in a new tab)
- Results in seconds per the site You can automate checks with the API documented source (opens in a new tab)
- Covers named crawlers like GPTBot and ClaudeBot You find out which bots are blocked documented source (opens in a new tab)
Check before paying for isvisible.ai
- Checks access only, not whether AI actually cites the site Does not show if AI quotes you documented source (opens in a new tab)
- Results cached for 60 minutes You may see old data documented source (opens in a new tab)
- API rate-limited to 20 requests per 60 seconds per IP Automation needs throttling documented source (opens in a new tab)
- No pricing page; free claim from homepage only Free status is not formally guaranteed documented source (opens in a new tab)
How to use isvisible.ai for checking whether AI crawlers can access a site
Set up isvisible.ai
- Open isvisible.ai.
- Paste your website URL.
- Click Run free check.
Example: checking whether AI crawlers can access a site
- Wait a few seconds for the analysis.
- Read the 0-100 score and grade.
- Review the agent-by-agent access map.
Review and export the result
- Compare blocked agents with your robots.txt.
- Re-run after changes allowing for the 60-minute cache.
isvisible.ai integrations and API
Native integrations and export formats
Export: PDF
API access and separate billing
An API is available, billing not documented. A keyless JSON API and MCP tool exist; request format is in isvisible.ai/llms.txt.
Privacy, data use and commercial rights
Summarized from the vendor's current policies; this is not legal advice and a vendor's badge is not an independent audit.
How your inputs and outputs are handled
The submitted domain is sent to that domain's server to read robots.txt and probe it; client IP and user agent are read for rate limiting.
Best isvisible.ai alternatives for different needs
"Better suited" is based on documented features and pricing, not on a head-to-head test.
Perplexity: better suited to
| Alternative | When to choose it | Pricing | Limitation | |
|---|---|---|---|---|
| Perplexity | — | — | Compare |
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isvisible.ai FAQ
How many AI crawlers does isvisible.ai check?
13, including GPTBot, ClaudeBot, PerplexityBot and Google-Extended. source (opens in a new tab)
Does isvisible.ai require signup?
No, the homepage says no account or credit card is needed. source (opens in a new tab)
How is the isvisible.ai score calculated?
AI agent access contributes up to 80 points and a present llms.txt up to 20. source (opens in a new tab)
Does isvisible.ai have an API?
Yes, a public keyless API is documented in llms.txt, limited to 20 requests per 60 seconds per IP. source (opens in a new tab)
Sources and review methodology
Official sources and verification dates
- isvisible.ai home homepage · checked Oct 2, 2026
- isvisible.ai llms.txt (API docs) api_docs · checked Oct 2, 2026
Not verified: Formal pricing page; Long-term free status.
How we documented and maintain this page
Every fact about isvisible.ai above comes from the 2 official pages listed here, last compared on Oct 2, 2026; we have not run isvisible.ai ourselves, so it has no editorial score. How we check and re-check pages.
Article updated Oct 2, 2026; prices checked Oct 2, 2026. Outbound links to vendors are plain links; we do not earn commissions. How we review · Report an error