QUIC Protocol udp/443

QUIC (Quick UDP Internet Connections, pronounced quick) is an experimental transport layer network protocol developed by Google. QUIC supports a set of multiplexed connections between two endpoints over User Datagram Protocol (UDP), and was designed to provide security protection equivalent to TLS/SSL, along with reduced connection and transport latency, and bandwidth estimation in each direction to avoid congestion. QUIC’s main goal is to optimize connection-oriented web applications currently using TCP. An experimental implementation is being put in place in Chrome by a team of engineers at Google.

Source: How to Block QUIC Protocol

https://live.paloaltonetworks.com/t5/Management-Articles/How-to-Block-QUIC-Protocol/ta-p/120207

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