[rsa25519]

> 500 000 000 requests per month is just about 200 request per second

Not if you assume that some hours will have more web traffic than others.

[superlupo]

Yes, there are some peaks with 10-20000 per sec.

Clickhouse seems very suitable as database. Does anybody know open source analytics tools that use it? Two parts would be needed: the client javascript tracker which injects into the database, and a GUI for reports.