thanks for the laugh. As far as yandex goes, you are on the right track though: my grandad used to say, "If a russian ever says good morning to you, you have learned two things: it's not good and it's not morning". For the record, the founder is Serbian, As for the claim, sure, they aren't really hiding it: https://kagi.com/changelog#5340

Apparently they have been using yandex for 5 years as one of the search backends.