WebRTC Metrics
A comprehensive overview of WebRTC statistics, derived indicators, and observable signals, to better understand call quality, connectivity, and user experience in rtcStats
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transporttransportsecurityDTLS
dtlsCipher
The DTLS cipher suite negotiated for this transport.
Description
String
The descriptive name of the cipher suite used for the DTLS transport, as defined in the "Description" column of the IANA cipher suite registry. This value is only present when dtlsState is "connected", since the cipher suite is determined during the DTLS handshake.
See also
- transport->dtlsState
- transport->tlsVersion
- transport->srtpCipher
- WebRTC Statistics Specification

Notes
- Modern WebRTC implementations typically negotiate TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 or similar cipher suites
- Weaker cipher suites may indicate outdated browser versions or misconfigurations