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Fenn

How answer engines decide who gets cited — and what to do about it.

Working notes on measuring and improving AI visibility. Definitions with the arithmetic attached, failure modes we hit in our own audits, and no throat-clearing. Our own product flags that as an issue, so we do not get to do it here.

Or just measure your own domain.

Every plan tracks your prompts across all five engines, with the MCP server enabled so you can ask about it from Claude or ChatGPT. See what each plan includes.