System Design · Junior · Question 52 of 75

What does a TLS certificate prove to the browser?

✓Correct answer: That the server really owns the domain (verified by a trusted certificate authority), so the encrypted connection isn't to an impostor
2That the site has no bugs
3That the site is fast

Explanation

Encryption without authentication would allow man-in-the-middle attacks. Certificates expire and must be renewed (often automatically).

Further reading

MDN: Transport Layer Security ↗

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