Why HTTP/2 and QUIC Matter
Modern web performance isn't just about file size; it's about protocol efficiency. HTTP/2 allows multiplexing (sending multiple files over a single connection), eliminating the need for domain sharding or sprite sheets.
The Future: HTTP/3 (QUIC)
HTTP/3 runs over UDP instead of TCP, drastically reducing latency in unstable networks (like mobile data). Google, Facebook, and Cloudflare use it extensively.
IPv6 Adoption
With IPv4 addresses exhausted, the world is moving to IPv6. Running dual-stack (IPv4 + IPv6) ensures your site is reachable by the next billion internet users without nat traversal issues.