About Movio
Movio.site is an independent web service with one clear purpose: helping website owners find out whether AI crawlers can access their pages, and if not, which layer is stopping them.
What the checker does
You enter a web address. Movio reads the site’s robots.txt, then sends controlled test requests to the page using the User-Agent names of well-known AI crawlers, and compares what robots.txt says with what the server actually does. The report shows status codes, redirects, response times and signs of a firewall or challenge page.
The result is a side-by-side view: for each crawler you see the robots.txt decision and the live server response. That separation is the core value of the tool. Many people only look at one of the two layers and reach the wrong conclusion.
Why it exists
robots.txt and firewalls are configured in different places by different people, often at different times. It is common to find a site whose robots.txt welcomes a crawler while a security rule quietly returns an error to it, or one whose owner believes a crawler is blocked when only a rule in a file is in the way.
Checking both layers by hand means reading configuration files, sending requests with command-line tools, interpreting status codes, and knowing which headers or body patterns suggest a challenge page. Movio does that in a few seconds and explains the result in plain language so you do not need to be a systems engineer to understand the outcome.
How it works, briefly
Movio is a small PHP application. Requests to target sites come from the Movio server, pass through strict safety checks (no private or internal addresses, standard web ports only, capped size, time and redirects), and are rate limited. The tool page explains each step in more detail.
For crawlers that are defined only as robots.txt tokens (such as Google-Extended), Movio reports the robots.txt rule and notes that no server request is made under that name, because the operator does not send requests that way.
Limits of the test
A test from one server cannot copy IP reputation, verified crawler IP lists, TLS fingerprints, JavaScript challenges or behavioural detection. Results are a diagnostic signal, not a guarantee of how any real crawler will behave. Movio never tries to bypass CAPTCHAs, firewalls or authentication.
If a site only allows traffic from a published list of crawler IP ranges, Movio’s request will look different and may be treated differently. The report is designed to make that limitation clear rather than hide it.
Independence and principles
Movio is not affiliated with OpenAI, Anthropic, Google, Perplexity, Amazon, Meta, Apple, ByteDance, Common Crawl, Cohere or any other crawler operator. Their names appear only to identify the crawlers being tested. See the Disclaimer.
The tool is deliberately narrow. It does not score sites, recommend policies, or claim that allowing or blocking any crawler will improve rankings, traffic or revenue. Those decisions belong to the site owner. Movio’s job is to supply accurate evidence about access so that decisions can be made with eyes open.
Who maintains it
Movio is a small, independent project focused on one diagnostic problem. There is no large team and no venture funding narrative. Improvements are driven by what makes the reports clearer and safer, not by engagement metrics or feature bloat.
If you have a question about a result, a suggestion for a crawler that should be added, or a report of unexpected behaviour, use the contact page. Feedback that helps improve accuracy is welcome.