What is TLS Record Buffering?

TLS record buffering is a mechanism used to improve the performance of TLS (Transport Layer Security) encrypted connections by reducing the number of network connections required.

Normally, when using TLS, each block of data transmitted over the network is split into TLS records and encrypted separately. Each TLS record is then sent over the network as a separate entity and reassembled by the recipient. However, this division into separate units can result in a large number of network connections being required to transfer all the required records.

TLS record buffering caches TLS records and sends them in larger chunks instead of sending each record individually. This reduces the number of network connections and improves the performance of the encrypted connection. This mechanism can also help avoid network congestion, since fewer network connections are needed to transfer the same amount of data.