Add an average of recent search uniqueness to kagi.com/stats.
As each search has "Kagi Uniqueness %" calculated for it (25 relevant results in 0.71s. 80% unique Kagi results.), it would be interesting to see average of this over some time period for all Kagi searches, next to the "queries made over past day".
Visual way of tracking how much Kagi's own indexes and vertical sources are useful for users. Useful when trying to convert people into Kagi users, and to satisfy curiosity.