What should brands measure in AI search besides rankings?

Traditional rankings do not fully describe what happens when an answer engine synthesizes a response. We are building Corank around four practical signals: how often a brand appears for important questions, whether the description is accurate, which sources are cited, and how visibility compares with competitors.

Corank (https://corank.ai) turns that evidence into AEO/GEO and technical SEO work instead of stopping at a dashboard. For teams measuring AI search today: which signal has been most useful, and what is still missing from your reporting?