They have API access to Google but there is clearly a sprinkling of magic and logic between. How can I know? The magic is proven by the fact that Kagi mostly

They have API access to Google but there is clearly a sprinkling of magic and logic between. How can I know? The magic is proven by the fact that Kagi mostly respect my queries (or accept my bug reports if I can prove they didn't) despite being built on the shaky foundation of Bing and modern Google. Also there is some good old fashioned engineering there, like allowing me to pin, prioritize higher or lower or block certain sites.