What we find when we measure how AI assistants recommend brands. Every post is based on real measurements made with ShelfSignal at shelfsignal.pro, and the underlying numbers are public. ShelfSignal publishes a new category index as each one is measured.
Visibility tells you whether an assistant mentions your brand. The Order Shelf tells you whether it would actually buy from you. The new report runs 60 grounded purchase decisions across five assistants, shows which brand and seller gets the order, and turns every lost order into a ranked fix
228 brands were named at least once, and no two assistants recommended the same shelf. Thorne took 66% of Grok's answers and 25% of Claude's, on the same questions on the same day. The finding that changed how we build: assistants opened four pages on one brand's own domain across thirty answers, quoted them, and named that brand in none of them.
Every index is free and public: the full ranking, the split by assistant, and the domains the answers were built from.
Choose the visibility report or the Order Shelf audit, and we’ll show where assistants mention you, where they buy, and what has to change