Movio

Movio

AI Crawler Firewall Checker

Understand whether AI crawlers can access your website — and which layer is stopping them when they cannot.

Check Your Website

GET / User-Agent: GPTBot
robots.txtAllow: / Allowed
ServerHTTP 403 Rejected
Two separate gates. A page can pass the first and still be turned away at the second. Movio checks both.

What Movio does

Many site owners assume that if robots.txt allows a crawler, the crawler can read their pages. That is only half of the story. Firewalls, CDNs, bot-protection services and security plugins make their own decisions, and they sometimes reject crawlers that robots.txt welcomes.

Movio sends real test requests to your page using the User-Agent names of 15 well-known AI crawlers, reads your robots.txt the way the standard describes, and compares the two. You get a plain-language report showing which crawlers are allowed, which are blocked, and what the evidence is.

The goal is simple: replace guesswork with evidence. Whether you want to allow AI crawlers, block them, or keep a selective list, you need to know what is actually happening at both the robots.txt layer and the server layer.

What you get

  • A per-crawler table that separates the robots.txt result from the server result.
  • The exact robots.txt rule behind each decision.
  • Status codes, redirects and response times for each test request.
  • Possible firewall or challenge-page indicators, labelled with how sure the evidence is.
  • A downloadable report in HTML or text.

Movio is honest about its reach. A test from one server cannot copy every private check a crawler operator's own infrastructure meets, so results are a diagnostic signal rather than a promise. Read the limitations.

Why AI crawler access matters in 2026

More people now get information through AI-powered search and assistants that read web pages, either ahead of time to build an index or on demand while answering a question. For a website owner, the first practical question is simple: can those crawlers reach my pages at all?

Often the answer is decided by accident. A robots.txt file written years ago, a security plugin installed with strict defaults, or a CDN feature that blocks unfamiliar bots can all shut crawlers out without anyone choosing to. Equally, many owners choose to block some crawlers on purpose — for example to keep content out of model training — and want to confirm the block actually works.

Either way, the useful thing is to know what is really happening. Movio helps you see which layer is making the decision. It does not tell you whether you should allow any crawler. That depends on your content, your business and your views on how your work is used.

Allowing a crawler removes a barrier; it does not promise anything in return. Whether an AI product reads, cites or links to your pages, and whether that sends you visitors, is up to its operator.

Who this tool is for

  • Site owners and SEOs who want a quick, evidence-based check before changing robots.txt or security rules.
  • Developers and DevOps verifying that a new WAF, CDN or bot-management rule behaves as intended for known AI User-Agents.
  • Publishers and content teams deciding which AI crawlers to allow or block and needing confirmation that the decision is enforced.
  • Anyone troubleshooting “why does this AI tool say it cannot read my page?” without having to run curl commands by hand.

Guides on AI crawlers and site access

Beyond the checker itself, Movio publishes practical guides that explain the underlying mechanics and common decisions:

Check Your Website