HTTP/3 and QUIC protocols enhance Vultr CDN performance through reduced latency, improved connection reliability, and faster content delivery over UDP instead of TCP.
HTTP/3 is the latest version of the HTTP protocol and is built on top of QUIC, a transport protocol that runs over UDP instead of TCP. QUIC introduces several performance enhancements that are particularly beneficial for Vultr CDN. Unlike TCP, QUIC supports multiplexed connections without head-of-line blocking, which allows multiple streams of data to be delivered concurrently over a single connection. This notably reduces delays caused by packet loss or retransmission issues.
By using QUIC, HTTP/3 reduces connection establishment time because it combines the handshake for encryption (TLS 1.3) and transport negotiation into a single round-trip. This lowers latency for users connecting to the CDN, especially on high-latency networks such as mobile or geographically distant regions. Also, QUIC’s built-in congestion control and packet retransmission mechanisms improve reliability and stability under variable network conditions.
Vultr CDN’s support for HTTP/3 and QUIC ensures faster page loads, smoother media streaming, and more consistent performance worldwide, even when network conditions are suboptimal.
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