What is the reason why ChatGPT, Claude, Gemini, and Perplexity cannot read JavaScript on a single-page app?

They see ` ` where your content was supposed to be, meaning the answer engines can't quote what they can't read.

How does the snippet work in relation to your codebase?

The snippet stays in your codebase, and removing it is one line.

Not in ChatGPT, Claude, or Gemini?

Q: What do you need to do to diagnose your site?

Paste your URL — we'll show you exactly what they see.

Ready for the agent era.

# Not in ChatGPT,Claude, or Gemini?That's a four-line fix.

Your site is probably a single-page app. ChatGPT, Claude, Gemini, and Perplexity don't run JavaScript — they see `<div id="app">` where your content was supposed to be. The answer engines can't quote what they can't read.

Paste your URL — we'll show you exactly what they see, then install the fix in the same response real users get. **No DNS changes. No domain transfer. No second deploy.**

Diagnose site →

Free · no signup · live on screen in under 3 minutes

Snippet stays in your codebase. Removing it is one line. We can't break what we don't host.

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