[danskeren]

You're only allowed up to 10k queries per day, so you can't really use it to build a competing search engine.

I used their Programmable Search Engine (which doesn't have this 10k/day limit, but instead is client-side with other limitations), but the moment my Google-approved-non-profit was about to receive its first AdSense payout that would be donated to other charities, then they not only banned my AdSense account, but they also went a step further to ban my Programmable Search Engine account.. I have no idea why since it's impossible to get in touch with a human.

[Semaphor]

> You're only allowed up to 10k queries per day, so you can't really use it to build a competing search engine.

But Kagi.com uses Google (+ Bing), they almost certainly have over 10k queries/day

[danskeren]

I don't think Kagi is close to that amount of traffic to be honest (although I'd love to be wrong, in which case they might bypass the limit by rotating between different Programmable Search Engine accounts).. I mean they require signup and even then limit to 50 searches/month unless you start paying $10/month, which is totally fair but a very high barrier of entry.