isvisible.ai?
isvisible.ai · Coding
isvisible.ai is a free AI visibility audit tool that scores your website from 0 to 100 and shows an agent-by-agent access map. It checks your robots.txt and llms.txt files, then runs live probes against 13 major AI crawlers to see which ones can actually reach your pages. For anyone trying to get cited in ChatGPT, Claude, or Perplexity answers, that map is the starting point.
About isvisible.ai?
What Is isvisible.ai
isvisible.ai is a web-based AI visibility audit tool. You paste in a site, it checks the files AI crawlers read, then probes whether those crawlers can reach your content. The result is a single score plus a per-agent breakdown you can act on.
The score tops out at 100. It blends what it finds in robots.txt and llms.txt with the outcomes of live probes across 13 major AI crawlers, so the number reflects real reachability rather than a checklist of settings. The agent-by-agent access map tells you which crawler is blocked and which one gets through.
The main limitation is depth of fixes. The tool shows you the problem and where it sits, but it doesn't rewrite your files or publish changes for you. If you want the score to move, the edits are still yours to make.
Getting Started
- Open the isvisible.ai site in a browser. There's nothing to install and no account to create.
- Enter the URL of the site you want to audit.
- Let the tool read your robots.txt and llms.txt and run its live probes against the crawler list.
- Read the 0-100 visibility score, then open the agent-by-agent access map to see which AI crawlers are blocked and which get through.
- Fix the flagged files on your own site, then re-run the audit to see the score change.
Product Information
A quick look at isvisible.ai?'s pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- SEO specialists
- Content teams
- Site owners and developers
Tasks
- Auditing AI crawler access
- Checking robots.txt and llms.txt
- Tracking an AI visibility score
- Diagnosing missing AI citations
Scenarios
- A site ranks fine on Google but never shows up in ChatGPT answers, and you need to find out why.
- You just rewrote robots.txt and want to confirm the change actually opened the door for AI crawlers.
- You're onboarding a client site and want a quick AI visibility baseline before any work starts.
Key features
AI Visibility Score
The audit returns a single number from 0 to 100 that summarizes how reachable your site is to AI crawlers. It combines the state of your robots.txt and llms.txt with the results of live probes, so a site that looks configured but still blocks crawlers in practice won't score well. The score is the fastest way to compare two sites or to track one site after a change.
Agent-by-Agent Access Map
Instead of one pass or fail, the tool reports access per crawler, so you see exactly which agent is blocked and which one gets through. That matters because the crawlers aren't interchangeable: some fetch content for training, others for live search answers. The map shows that gap directly.
Robots.txt Checking
The tool reads your robots.txt and reports what it means for AI crawlers, not just whether the file exists. A rule that disallows a crawler looks fine to a casual read but quietly removes you from that agent's results. The audit surfaces that kind of conflict so you can fix the line responsible.
Llms.txt Checking
isvisible.ai also checks for an llms.txt file, the newer convention some sites use to point models at their best content. If it's missing or malformed, the audit flags it. You get a clear signal on whether that file is helping or just sitting there doing nothing.
Live Probes Across 13 AI Crawlers
Rather than assuming a crawler follows your rules, the tool runs live probes against 13 major AI crawlers to see what actually happens. That's the part you can't get from reading your own config, since a CDN firewall, bot protection layer, or misapplied rule can block a crawler even when robots.txt says allow. I've seen sites with a clean robots.txt still get nothing, and this is the check that catches it.
Browser-Based, No Setup
The whole audit runs in the browser. There's no SDK, no code snippet, and no account to create before you see a result. You paste a URL and read the outcome. That's it. That keeps the feedback loop short when you're iterating on a fix.
A Handy GEO Tool With an AI SEO Score
You can treat it as a quick GEO tool. It's not a full AI SEO tool suite, since it won't touch rankings or content quality. What it gives you is a visibility score tied to crawler access, which is the part most audits skip.
Pros and cons
Pros
- Free to use, with no account or installation needed to run an audit.
- Scores a site 0-100, giving a single number to track across fixes.
- Breaks access down per crawler, so you know which agent is blocked.
- Works as a combined robots.txt and llms.txt checker in a single pass.
- Runs live probes across 13 AI crawlers instead of trusting your config.
Cons
- It audits and reports but doesn't change your files, so you still have to make every fix yourself.
- No API is documented, so you can't wire the audit into an automated pipeline and have to run checks by hand.
- Because live probing depends on each crawler's current behavior, a score can shift between runs even if your site hasn't changed.
Frequently asked questions
It's a free AI visibility audit tool. You give it a website URL, and it scores the site from 0 to 100 and maps how 13 major AI crawlers can reach it by checking robots.txt, llms.txt, and running live probes.
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