[yesco]

I use Kagi all the time for this kind of thing, and always wondered if it might be an issue. But in reality I don't actually end up using as many searches as I thought I would, like at most it's 30 a day (according to Kagi's stats), and even that only adds up to ~900 searches in a month. Always assumed it would be higher since I'm constantly searching stuff for my job, but I guess 30 is kind of a lot when you think about it.

So this may not be as big of an issue as you think. Should also keep in mind that higher search quality means you don't have to search as much in the first place, which leaves a larger buffer.

Alternatively you could just use "hashbangs" to search domains via google (!g), since I don't believe those cost you anything.