You can check whether a site is AI readable in about five minutes
An AI-readable website is one whose meaning a machine can extract without guessing: what the business does, who it serves, and what it can prove. Checking this does not need a paid tool. Turning off JavaScript, reading the page as a list of headings, and looking at its structured data show almost exactly what a crawler or AI agent sees.
Short answer
The fastest way to check is to read the site the way a machine does. Reload it with JavaScript disabled, read only its heading tags in order, and open its structured data to see whether it actually states what the business is, does, and serves. If the core message survives all three, the site is readable. If a page goes blank, its headings run out of order, or its schema is missing or generic, real content is being hidden from the exact systems now deciding who gets recommended.
Disable JavaScript and reload the page
This is the single most revealing test, because it mirrors what many AI crawlers actually do. GPTBot and ClaudeBot fetch a page's raw HTML but generally do not execute its JavaScript, so anything that only appears after the page hydrates in a browser is invisible to them. Most browsers let you disable JavaScript from developer tools or a settings menu; reload the page afterward and see what is left.
A site built with server-side rendering or static generation usually survives this test with its core content intact. A single-page app that renders everything client-side after load can go entirely blank, even though it looks complete to a person browsing normally. The gap between those two outcomes is the whole test.
Read the page as a list of headings only
Ignore every word of body copy and pull out just the heading tags, h1 through h3, in the order they appear in the document. That list is effectively a table of contents a machine can walk without reading a single sentence of prose.
If that list alone tells a reader who the business is, what it does, and who it serves, the structure is doing real informational work. If the headings are decorative phrases chosen for how they look rather than what they say, or the hierarchy skips levels for visual reasons, a machine reading headings first comes away with the same gap a person would.
Check what the structured data actually states
Most modern sites carry a block of JSON-LD schema markup, visible in the page source inside a script tag, that names the business, its category, and its details in a machine-readable format. Viewing the page source or opening a browser's developer tools is enough to find it.
The test is not whether schema exists but what it says. A page can carry an Organization type with only a name and logo, which tells a system almost nothing, or one that also states the category, the location, the founder, and links to independent profiles that confirm the same facts. The second version gives a system something to extract with confidence; the first gives it very little.
What passing these checks does not guarantee
Being AI readable is the floor, not the ceiling. A machine parsing a page accurately does not mean that page gets cited ahead of competitors who are also readable. Being preferred takes more: independent sources confirming the same facts, a consistent story across the web, and proof a system can verify rather than a claim it has to take on faith.
The three checks above answer a narrower question: can a machine reach and understand what this page is actually saying. That is worth confirming first, because nothing else matters if the answer is no.
Nothing about AI readability requires guessing. Turn off the layer a machine cannot see, and read what is actually left.
Common questions
Do I need to disable JavaScript in every browser to test this?
No, one is enough. Chrome, Firefox and Safari all let you disable JavaScript from developer tools or site settings. The result on one modern browser reflects roughly what a non-rendering crawler sees, since the gap is about whether JavaScript runs at all, not which browser runs it.
My site looks fine with JavaScript on. Why would I still check this?
Because that is exactly the failure mode. A site can look complete and read well to a person while handing a blank or nearly blank document to any crawler that does not execute JavaScript. The visual experience and the machine-readable experience are two different things, and only one of them is visible without this test.
Does passing this test mean I do not need structured data?
No. The heading and JavaScript tests confirm a machine can reach your content at all. Structured data is a separate layer that states specific facts explicitly rather than leaving a system to infer them from prose, and both matter together.
Is there a single score or number for AI readability?
Not a standardized one. Readability here works more like a checklist than a score: does the content survive without JavaScript, does the heading order make sense read on its own, and does the structured data state real facts. A page either passes each check plainly or it does not.
AI-readable websites
The full standard: what Reidify builds into every site by default.
What is an AI-readable website
The definition these three checks are built on.
Do AI crawlers read JavaScript sites
The mechanism behind the first check, explained in full.
Run the checker
Free. Paste any URL and see what machines can read on it.
Find out what AI systems can and cannot read on your own site today.