The RTCIceCandidatePairStats dictionary's responsesSent property indicates the total number of STUN connectivity check responses that have been sent so far on the connection described by this pair of candidates.


responsesSent = rtcIceCandidatePairStats.responsesSent;


An integer value indicating the number of times a repsonse has been sent to a STUN connectivity check request.

Note: Since it isn't possible to tell the difference between connectivity check requests and consent requests, this value includes both.


Specification Status Comment
Identifiers for WebRTC's Statistics API
The definition of 'RTCIceCandidatePairStats.responsesSent' in that specification.
Candidate Recommendation Initial specification.

Browser compatibility

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ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
responsesSentChrome Full support YesEdge Full support ≤79Firefox No support NoIE No support NoOpera ? Safari ? WebView Android Full support YesChrome Android Full support YesFirefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android Full support Yes


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