Sent this to my friends flexing a "top 65%" score. The site didn't make it clear that's not a good thing.
(files.catbox.moe)
I think I've seen people take the "Mensa Norway" IQ test: https://test.mensa.no/ That has an advantage over most other websites in that it provides a result that seems quite specific, and it doesn't require payment in order to see that result.