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LLM HTML Visibility Checker
AI assistants read the HTML your server sends, not the page a browser builds afterwards. This shows how much of your content survives that - and flags the pages that come back effectively empty.
A page built entirely in the browser can look perfect to you and be blank to an assistant. This is the check that tells the two apart.
What this checks
We request your page exactly as an assistant would and never run any JavaScript. Then we strip the scripts and styling and measure what is left: how many words, how much of the document is text rather than code, and whether the structural signals - headings, paragraphs, JSON-LD, image descriptions - are actually there.
Why this differs from Google
Google renders JavaScript, eventually, on a second pass. AI assistants generally do not - they read the HTML that comes back and move on. A single-page app can therefore rank respectably on Google and be completely invisible to ChatGPT, which is a gap most site owners have no way to see.
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