FrontendHaltNetworking·Beginner·Conceptual·1 min read
Does HTTP/3 replace the need for a CDN?
Short interview answer
No. A CDN still provides geographic proximity, caching, and offload; HTTP/3 is a transport improvement the CDN itself terminates and benefits from. The two are complementary — a CDN with HTTP/3 support gives both proximity and efficient transport.
Key takeaway
Explain the underlying mental model clearly, then support it with a concrete example and its trade-offs.