diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 2db5c6695..2db08dc52 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -1239,17 +1239,36 @@ interface RTCIceCandidatePair {
 interface RTCIceCandidatePairStats extends RTCStats {
     availableIncomingBitrate?: number;
     availableOutgoingBitrate?: number;
+    bytesDiscardedOnSend?: number;
     bytesReceived?: number;
     bytesSent?: number;
+    circuitBreakerTriggerCount?: number;
+    consentExpiredTimestamp?: number;
+    consentRequestsSent?: number;
+    currentRoundTripTime?: number;
+    currentRtt?: number;
+    firstRequestTimestamp?: number;
+    lastPacketReceivedTimestamp?: number;
+    lastPacketSentTimestamp?: number;
+    lastRequestTimestamp?: number;
+    lastResponseTimestamp?: number;
     localCandidateId?: string;
     nominated?: boolean;
+    packetsDiscardedOnSend?: number;
+    packetsReceived?: number;
+    packetsSent?: number;
     priority?: number;
-    readable?: boolean;
     remoteCandidateId?: string;
-    roundTripTime?: number;
+    requestsReceived?: number;
+    requestsSent?: number;
+    responsesReceived?: number;
+    responsesSent?: number;
+    retransmissionsReceived?: number;
+    retransmissionsSent?: number;
     state?: RTCStatsIceCandidatePairState;
+    totalRoundTripTime?: number;
+    totalRtt?: number;
     transportId?: string;
-    writable?: boolean;
 }
 
 interface RTCIceGatherOptions {
@@ -1487,9 +1506,9 @@ interface RTCSsrcRange {
 }
 
 interface RTCStats {
-    id: string;
-    timestamp: number;
-    type: RTCStatsType;
+    id?: string;
+    timestamp?: number;
+    type?: RTCStatsType;
 }
 
 interface RTCStatsEventInit extends EventInit {
@@ -1507,13 +1526,21 @@ interface RTCTrackEventInit extends EventInit {
 }
 
 interface RTCTransportStats extends RTCStats {
-    activeConnection?: boolean;
     bytesReceived?: number;
     bytesSent?: number;
+    dtlsCipher?: string;
+    dtlsState?: RTCDtlsTransportState;
+    iceRole?: RTCIceRole;
     localCertificateId?: string;
+    packetsReceived?: number;
+    packetsSent?: number;
     remoteCertificateId?: string;
     rtcpTransportStatsId?: string;
+    selectedCandidatePairChanges?: number;
     selectedCandidatePairId?: string;
+    srtpCipher?: string;
+    tlsGroup?: string;
+    tlsVersion?: string;
 }
 
 interface ReadableStreamReadDoneResult<T> {
@@ -20080,9 +20107,9 @@ type RTCRtpTransceiverDirection = "inactive" | "recvonly" | "sendonly" | "sendre
 type RTCSctpTransportState = "closed" | "connected" | "connecting";
 type RTCSdpType = "answer" | "offer" | "pranswer" | "rollback";
 type RTCSignalingState = "closed" | "have-local-offer" | "have-local-pranswer" | "have-remote-offer" | "have-remote-pranswer" | "stable";
-type RTCStatsIceCandidatePairState = "cancelled" | "failed" | "frozen" | "inprogress" | "succeeded" | "waiting";
+type RTCStatsIceCandidatePairState = "failed" | "frozen" | "in-progress" | "succeeded" | "waiting";
 type RTCStatsIceCandidateType = "host" | "peerreflexive" | "relayed" | "serverreflexive";
-type RTCStatsType = "candidatepair" | "datachannel" | "inboundrtp" | "localcandidate" | "outboundrtp" | "remotecandidate" | "session" | "track" | "transport";
+type RTCStatsType = "candidate-pair" | "certificate" | "codec" | "csrc" | "data-channel" | "ice-server" | "inbound-rtp" | "local-candidate" | "media-source" | "outbound-rtp" | "peer-connection" | "receiver" | "remote-candidate" | "remote-inbound-rtp" | "remote-outbound-rtp" | "sctp-transport" | "sender" | "stream" | "track" | "transceiver" | "transport";
 type ReadyState = "closed" | "ended" | "open";
 type ReferrerPolicy = "" | "no-referrer" | "no-referrer-when-downgrade" | "origin" | "origin-when-cross-origin" | "same-origin" | "strict-origin" | "strict-origin-when-cross-origin" | "unsafe-url";
 type RequestCache = "default" | "force-cache" | "no-cache" | "no-store" | "only-if-cached" | "reload";
diff --git a/inputfiles/idl/WebRTC Stats.widl b/inputfiles/idl/WebRTC Stats.widl
new file mode 100644
index 000000000..cb419250c
--- /dev/null
+++ b/inputfiles/idl/WebRTC Stats.widl	
@@ -0,0 +1,449 @@
+    dictionary RTCStats {
+DOMHighResTimeStamp timestamp;
+RTCStatsType        type;
+DOMString           id;
+    };
+
+enum RTCStatsType {
+"codec",
+"inbound-rtp",
+"outbound-rtp",
+"remote-inbound-rtp",
+"remote-outbound-rtp",
+"media-source",
+"csrc",
+"peer-connection",
+"data-channel",
+"stream",
+"track",
+"transceiver",
+"sender",
+"receiver",
+"transport",
+"sctp-transport",
+"candidate-pair",
+"local-candidate",
+"remote-candidate",
+"certificate",
+"ice-server"
+};
+
+dictionary RTCRtpStreamStats : RTCStats {
+             unsigned long       ssrc;
+             DOMString           kind;
+             DOMString           transportId;
+             DOMString           codecId;
+};
+
+dictionary RTCCodecStats : RTCStats {
+             unsigned long payloadType;
+             RTCCodecType  codecType;
+             DOMString     transportId;
+             DOMString     mimeType;
+             unsigned long clockRate;
+             unsigned long channels;
+             DOMString     sdpFmtpLine;
+};
+
+enum RTCCodecType {
+    "encode",
+    "decode",
+};
+
+dictionary RTCReceivedRtpStreamStats : RTCRtpStreamStats {
+             unsigned long long   packetsReceived;
+             long long            packetsLost;
+             double               jitter;
+             unsigned long long   packetsDiscarded;
+             unsigned long long   packetsRepaired;
+             unsigned long long   burstPacketsLost;
+             unsigned long long   burstPacketsDiscarded;
+             unsigned long        burstLossCount;
+             unsigned long        burstDiscardCount;
+             double               burstLossRate;
+             double               burstDiscardRate;
+             double               gapLossRate;
+             double               gapDiscardRate;
+             unsigned long        framesDropped;
+             unsigned long        partialFramesLost;
+             unsigned long        fullFramesLost;
+
+};
+
+dictionary RTCInboundRtpStreamStats : RTCReceivedRtpStreamStats {
+             DOMString            trackId;
+             DOMString            receiverId;
+             DOMString            remoteId;
+             unsigned long        framesDecoded;
+             unsigned long        keyFramesDecoded;
+             unsigned long        frameWidth;
+             unsigned long        frameHeight;
+             unsigned long        frameBitDepth;
+             double               framesPerSecond;
+             unsigned long long   qpSum;
+             double               totalDecodeTime;
+             double               totalInterFrameDelay;
+             double               totalSquaredInterFrameDelay;
+             boolean              voiceActivityFlag;
+             DOMHighResTimeStamp  lastPacketReceivedTimestamp;
+             double               averageRtcpInterval;
+             unsigned long long   headerBytesReceived;
+             unsigned long long   fecPacketsReceived;
+             unsigned long long   fecPacketsDiscarded;
+             unsigned long long   bytesReceived;
+             unsigned long long   packetsFailedDecryption;
+             unsigned long long   packetsDuplicated;
+             record<USVString, unsigned long long> perDscpPacketsReceived;
+             unsigned long        nackCount;
+             unsigned long        firCount;
+             unsigned long        pliCount;
+             unsigned long        sliCount;
+             DOMHighResTimeStamp  estimatedPlayoutTimestamp;
+             double               jitterBufferDelay;
+             unsigned long long   jitterBufferEmittedCount;
+             unsigned long long   totalSamplesReceived;
+             unsigned long long   samplesDecodedWithSilk;
+             unsigned long long   samplesDecodedWithCelt;
+             unsigned long long   concealedSamples;
+             unsigned long long   silentConcealedSamples;
+             unsigned long long   concealmentEvents;
+             unsigned long long   insertedSamplesForDeceleration;
+             unsigned long long   removedSamplesForAcceleration;
+             double               audioLevel;
+             double               totalAudioEnergy;
+             double               totalSamplesDuration;
+             unsigned long        framesReceived;
+             DOMString            decoderImplementation;
+            };
+
+dictionary RTCRemoteInboundRtpStreamStats : RTCReceivedRtpStreamStats {
+             DOMString            localId;
+             double               roundTripTime;
+             double               totalRoundTripTime;
+             double               fractionLost;
+             unsigned long long   reportsReceived;
+             unsigned long long   roundTripTimeMeasurements;
+};
+
+dictionary RTCSentRtpStreamStats : RTCRtpStreamStats {
+             unsigned long      packetsSent;
+             unsigned long long bytesSent;
+};
+
+dictionary RTCOutboundRtpStreamStats : RTCSentRtpStreamStats {
+             DOMString            trackId;
+             DOMString            mediaSourceId;
+             DOMString            senderId;
+             DOMString            remoteId;
+             DOMString            rid;
+             DOMHighResTimeStamp  lastPacketSentTimestamp;
+             unsigned long long   headerBytesSent;
+             unsigned long        packetsDiscardedOnSend;
+             unsigned long long   bytesDiscardedOnSend;
+             unsigned long        fecPacketsSent;
+             unsigned long long   retransmittedPacketsSent;
+             unsigned long long   retransmittedBytesSent;
+             double               targetBitrate;
+             unsigned long long   totalEncodedBytesTarget;
+             unsigned long        frameWidth;
+             unsigned long        frameHeight;
+             unsigned long        frameBitDepth;
+             double               framesPerSecond;
+             unsigned long        framesSent;
+             unsigned long        hugeFramesSent;
+             unsigned long        framesEncoded;
+             unsigned long        keyFramesEncoded;
+             unsigned long        framesDiscardedOnSend;
+             unsigned long long   qpSum;
+             unsigned long long   totalSamplesSent;
+             unsigned long long   samplesEncodedWithSilk;
+             unsigned long long   samplesEncodedWithCelt;
+             boolean              voiceActivityFlag;
+             double               totalEncodeTime;
+             double               totalPacketSendDelay;
+             double               averageRtcpInterval;
+             RTCQualityLimitationReason                 qualityLimitationReason;
+             record<DOMString, double> qualityLimitationDurations;
+             unsigned long        qualityLimitationResolutionChanges;
+             record<USVString, unsigned long long> perDscpPacketsSent;
+             unsigned long        nackCount;
+             unsigned long        firCount;
+             unsigned long        pliCount;
+             unsigned long        sliCount;
+             DOMString            encoderImplementation;
+};
+
+enum RTCQualityLimitationReason {
+            "none",
+            "cpu",
+            "bandwidth",
+            "other",
+          };
+
+dictionary RTCRemoteOutboundRtpStreamStats : RTCSentRtpStreamStats {
+             DOMString           localId;
+             DOMHighResTimeStamp remoteTimestamp;
+             unsigned long long  reportsSent;
+};
+
+dictionary RTCMediaSourceStats : RTCStats {
+             DOMString       trackIdentifier;
+             DOMString       kind;
+};
+
+dictionary RTCAudioSourceStats : RTCMediaSourceStats {
+              double              audioLevel;
+              double              totalAudioEnergy;
+              double              totalSamplesDuration;
+              double              echoReturnLoss;
+              double              echoReturnLossEnhancement;
+};
+
+dictionary RTCVideoSourceStats : RTCMediaSourceStats {
+             unsigned long   width;
+             unsigned long   height;
+             unsigned long   bitDepth;
+             unsigned long   frames;
+             unsigned long   framesPerSecond;
+};
+
+dictionary RTCRtpContributingSourceStats : RTCStats {
+             unsigned long contributorSsrc;
+             DOMString     inboundRtpStreamId;
+             unsigned long packetsContributedTo;
+             double        audioLevel;
+};
+
+dictionary RTCPeerConnectionStats : RTCStats {
+            unsigned long dataChannelsOpened;
+            unsigned long dataChannelsClosed;
+            unsigned long dataChannelsRequested;
+            unsigned long dataChannelsAccepted;
+};
+
+dictionary RTCRtpTransceiverStats {
+    DOMString senderId;
+    DOMString receiverId;
+    DOMString mid;
+};
+
+dictionary RTCMediaHandlerStats : RTCStats {
+             DOMString           trackIdentifier;
+             boolean             remoteSource;
+             boolean             ended;
+             DOMString           kind;
+             RTCPriorityType     priority;
+};
+
+dictionary RTCVideoHandlerStats : RTCMediaHandlerStats {
+};
+
+dictionary RTCVideoSenderStats : RTCVideoHandlerStats {
+             DOMString           mediaSourceId;
+};
+
+dictionary RTCSenderVideoTrackAttachmentStats : RTCVideoSenderStats {
+};
+
+dictionary RTCVideoReceiverStats : RTCVideoHandlerStats {
+};
+
+dictionary RTCAudioHandlerStats : RTCMediaHandlerStats {
+};
+
+dictionary RTCAudioSenderStats : RTCAudioHandlerStats {
+             DOMString           mediaSourceId;
+};
+
+dictionary RTCSenderAudioTrackAttachmentStats : RTCAudioSenderStats {
+};
+
+dictionary RTCAudioReceiverStats : RTCAudioHandlerStats {
+};
+
+dictionary RTCDataChannelStats : RTCStats {
+             DOMString           label;
+             DOMString           protocol;
+             long                dataChannelIdentifier;
+             DOMString           transportId;
+             RTCDataChannelState state;
+             unsigned long       messagesSent;
+             unsigned long long  bytesSent;
+             unsigned long       messagesReceived;
+             unsigned long long  bytesReceived;
+};
+
+dictionary RTCTransportStats : RTCStats {
+             unsigned long long    packetsSent;
+             unsigned long long    packetsReceived;
+             unsigned long long    bytesSent;
+             unsigned long long    bytesReceived;
+             DOMString             rtcpTransportStatsId;
+             RTCIceRole            iceRole;
+             RTCDtlsTransportState dtlsState;
+             DOMString             selectedCandidatePairId;
+             DOMString             localCertificateId;
+             DOMString             remoteCertificateId;
+             DOMString             tlsVersion;
+             DOMString             dtlsCipher;
+             DOMString             srtpCipher;
+             DOMString             tlsGroup;
+             unsigned long         selectedCandidatePairChanges;
+};
+
+dictionary RTCSctpTransportStats : RTCStats {
+    double smoothedRoundTripTime;
+};
+
+dictionary RTCIceCandidateStats : RTCStats {
+             DOMString                transportId;
+             DOMString?               address;
+             long                     port;
+             DOMString                protocol;
+             RTCIceCandidateType      candidateType;
+             long                     priority;
+             DOMString                url;
+             DOMString                relayProtocol;
+};
+
+dictionary RTCIceCandidatePairStats : RTCStats {
+             DOMString                     transportId;
+             DOMString                     localCandidateId;
+             DOMString                     remoteCandidateId;
+             RTCStatsIceCandidatePairState state;
+             boolean                       nominated;
+             unsigned long long            packetsSent;
+             unsigned long long            packetsReceived;
+             unsigned long long            bytesSent;
+             unsigned long long            bytesReceived;
+             DOMHighResTimeStamp           lastPacketSentTimestamp;
+             DOMHighResTimeStamp           lastPacketReceivedTimestamp;
+             DOMHighResTimeStamp           firstRequestTimestamp;
+             DOMHighResTimeStamp           lastRequestTimestamp;
+             DOMHighResTimeStamp           lastResponseTimestamp;
+             double                        totalRoundTripTime;
+             double                        currentRoundTripTime;
+             double                        availableOutgoingBitrate;
+             double                        availableIncomingBitrate;
+             unsigned long                 circuitBreakerTriggerCount;
+             unsigned long long            requestsReceived;
+             unsigned long long            requestsSent;
+             unsigned long long            responsesReceived;
+             unsigned long long            responsesSent;
+             unsigned long long            retransmissionsReceived;
+             unsigned long long            retransmissionsSent;
+             unsigned long long            consentRequestsSent;
+             DOMHighResTimeStamp           consentExpiredTimestamp;
+             unsigned long                 packetsDiscardedOnSend;
+             unsigned long long            bytesDiscardedOnSend;
+};
+
+enum RTCStatsIceCandidatePairState {
+    "frozen",
+    "waiting",
+    "in-progress",
+    "failed",
+    "succeeded"
+};
+
+dictionary RTCCertificateStats : RTCStats {
+             DOMString fingerprint;
+             DOMString fingerprintAlgorithm;
+             DOMString base64Certificate;
+             DOMString issuerCertificateId;
+};
+
+dictionary RTCIceServerStats : RTCStats {
+             DOMString url;
+             long port;
+             DOMString protocol;
+             unsigned long totalRequestsSent;
+             unsigned long totalResponsesReceived;
+             double totalRoundTripTime;
+  };
+
+dictionary RTCMediaStreamStats : RTCStats {
+  DOMString streamIdentifier;
+  sequence<DOMString> trackIds;
+};
+
+dictionary RTCReceiverVideoTrackAttachmentStats : RTCVideoReceiverStats {};
+
+dictionary RTCReceiverAudioTrackAttachmentStats : RTCAudioReceiverStats {};
+
+partial dictionary RTCCodecStats {
+    DOMString implementation;
+};
+
+partial dictionary RTCIceCandidateStats {
+    boolean deleted = false;
+    boolean isRemote;
+};
+
+partial dictionary RTCIceCandidatePairStats {
+    double totalRtt;
+    double currentRtt;
+    unsigned long long priority;
+};
+
+partial dictionary RTCRtpStreamStats {
+    DOMString mediaType;
+    double averageRTCPInterval;
+};
+
+partial dictionary RTCInboundRtpStreamStats {
+    double fractionLost;
+};
+
+partial dictionary RTCAudioHandlerStats {
+    double audioLevel;
+    double totalAudioEnergy;
+    double totalSamplesDuration;
+    boolean voiceActivityFlag;
+};
+
+partial dictionary RTCAudioSenderStats {
+    unsigned long long totalSamplesSent;
+    double echoReturnLoss;
+    double echoReturnLossEnhancement;
+};
+
+partial dictionary RTCAudioReceiverStats {
+    DOMHighResTimeStamp estimatedPlayoutTimestamp;
+    double jitterBufferDelay;
+    unsigned long long jitterBufferEmittedCount;
+    unsigned long long totalSamplesReceived;
+    unsigned long long concealedSamples;
+    unsigned long long silentConcealedSamples;
+    unsigned long long concealmentEvents;
+    unsigned long long insertedSamplesForDeceleration;
+    unsigned long long removedSamplesForAcceleration;
+    double audioLevel;
+    double totalAudioEnergy;
+    double totalSamplesDuration;
+};
+
+partial dictionary RTCVideoHandlerStats {
+    unsigned long frameWidth;
+    unsigned long frameHeight;
+    double framesPerSecond;
+};
+
+partial dictionary RTCVideoSenderStats {
+    unsigned long keyFramesSent;
+    unsigned long framesCaptured;
+    unsigned long framesSent;
+    unsigned long hugeFramesSent;
+};
+
+partial dictionary RTCVideoReceiverStats {
+    unsigned long keyFramesReceived;
+    DOMHighResTimeStamp estimatedPlayoutTimestamp;
+    double jitterBufferDelay;
+    unsigned long long jitterBufferEmittedCount;
+    unsigned long framesReceived;
+    unsigned long framesDecoded;
+    unsigned long framesDropped;
+    unsigned long partialFramesLost;
+    unsigned long fullFramesLost;
+};
diff --git a/inputfiles/idlSources.json b/inputfiles/idlSources.json
index c8e33221e..71c63e234 100644
--- a/inputfiles/idlSources.json
+++ b/inputfiles/idlSources.json
@@ -642,6 +642,10 @@
         "url": "https://w3c.github.io/webrtc-pc/",
         "title": "WebRTC"
     },
+    {
+        "url": "https://www.w3.org/TR/webrtc-stats",
+        "title": "WebRTC Stats"
+    },
     {
         "url": "https://www.w3.org/TR/web-share/",
         "title": "Web Share"