An IRC Bouncer is a client on a remote server that keeps your nickname connected to the IRC Network while your device is offline. It allows you to see chat history (up to a specific number of lines) from messages sent while you were offline. Additionally, it provides you a Vhost (Virtual Hostname) that differs from your real hostname, thereby adding a layer of protection against potential DDoS.

Internet Relay Chat, IRC for short, is a network of internet services that allow people to have real-time conversations using the IRC protocol. It uses chat rooms, known as channels, and supports communication and data transfer between users.