What the engines actually cited
In Prefometry's category sampling between August 15 and September 4, 2026, ChatGPT, Microsoft Copilot, and Gemini cited frase.io when answering buyer questions about AI visibility tools. The cited pages were Frase's own roundups — best-geo-tools-2026 and the-10-best-ai-visibility-tools-in-2026 — rather than a monitored metric or a product dashboard.
That is the pattern this page exists to explain: vendors that publish the listicles engines quote become part of the answer. Frase is strong at producing exactly that content. Prefometry exists for the other half of the job — detecting that you are missing from these answers and driving the fix through to a comparable recheck.
Pick by the job you are hiring the tool for
If your bottleneck is producing optimized pages that engines may eventually cite, content tooling like Frase is a reasonable hire. If your bottleneck is knowing where you are absent across five engines, what sources keep winning your slots, and whether the content you shipped changed anything — that is a measurement-and-action loop, which is what Prefometry runs.
Many teams end up using both categories side by side: a monitor that tells them which questions and sources to attack, and a writing tool that produces the pages. Prefometry is the monitor half with the action and recheck discipline attached.