They are trained on vast datasets of human-written content — reviews, articles, forum discussions, product comparisons — and they develop statistical confidence about which brands are authoritative in which categories.
The brands that appear consistently, described accurately, across trusted third-party sources accumulate retrieval probability. The brands that do not, do not.
This is not an algorithm you can game. It is an identity problem. IndexGrid solves it at the infrastructure level.
IndexGrid has identified 10 measurable signalsacross four layers that determine a brand's retrieval probability in AI systems. These signals can be audited, scored, and improved systematically — which is why RSOV improvement is measurable within weeks, not years.