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Skill test
A timed check on one skill, graded on our servers, with an explanation for every answer. Clear the bar on two different days and that skill reads as proven on your dashboard — not self-reported.
30 skills available
60 seconds on each question, one at a time. Time doesn't carry over — when it runs out the test moves on.
Skill tests need a free account — that's how attempts are rate-limited and how your scores and review notes are there when you come back.
Proven = 80%+ on 10 questions, on two different days. Practice-shown, never a certificate.