The Complete Guide to
HTTP/3 vs. HTTP/2
HTTP/3 isn’t just the next version of HTTP. It changes how modern applications handle latency, reliability, encryption, mobility, and packet loss by moving from TCP to QUIC. This guide breaks down what that means in practice, from gRPC and NGINX to DNS, TLS, Traefik, and QUIC vs. TCP, so IT teams can understand where HTTP/3 improves performance, where deployment gets tricky, and what to monitor before rolling it out.