Let's Encrypt quiz

Test your Let's Encrypt knowledge with a free interactive quiz — 15 questions with answers and explanations. No signup needed to play.

What does the HTTP-01 challenge verify?

1. What does the HTTP-01 challenge verify?
2. What is a common ACME client used with Let's Encrypt?
3. What is a benefit of Let's Encrypt for the wider web?
4. Are Let's Encrypt certificates trusted by browsers by default?
5. Which challenge type is required to issue a wildcard certificate?
6. What protocol does Let's Encrypt use to automate certificate issuance?
7. What type of certificate does Let's Encrypt primarily issue?
8. Does Let's Encrypt validate the legal identity of the organization behind a domain?
9. How long are Let's Encrypt certificates valid?
10. What does the DNS-01 challenge require?
11. Why is automation especially important with Let's Encrypt?
12. What is a practical way renewals are typically scheduled?

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