diff --git a/packages/browser-core/src/domain/resourceUtils.ts b/packages/browser-core/src/domain/resourceUtils.ts
index f5849134c0..1d79857a1b 100644
--- a/packages/browser-core/src/domain/resourceUtils.ts
+++ b/packages/browser-core/src/domain/resourceUtils.ts
@@ -8,6 +8,7 @@ export const ResourceType = {
   IMAGE: 'image',
   FONT: 'font',
   MEDIA: 'media',
+  WEBSOCKET: 'websocket',
   OTHER: 'other',
 } as const
 
diff --git a/packages/browser-rum-core/src/rawRumEvent.types.ts b/packages/browser-rum-core/src/rawRumEvent.types.ts
index a115388795..22365c3a47 100644
--- a/packages/browser-rum-core/src/rawRumEvent.types.ts
+++ b/packages/browser-rum-core/src/rawRumEvent.types.ts
@@ -73,6 +73,7 @@ export interface RawRumResourceEvent {
     protocol?: string
     delivery_type?: DeliveryType
     graphql?: GraphQlMetadata
+    websocket?: WebSocketResourceProperties
     request?: ResourceRequest
     response?: ResourceResponse
   }
@@ -86,6 +87,29 @@ export interface RawRumResourceEvent {
   context?: Context
 }
 
+export interface WebSocketResourceProperties {
+  connection_id: string
+  handshake_succeeded: boolean
+  start_time: TimeStamp
+  end_time: TimeStamp
+  start_view_id?: string
+  end_view_id?: string
+  tracking_end_reason: 'close_event' | 'session_end'
+  close_code?: number
+  close_reason?: string
+  was_clean?: boolean
+  messages_in: { count: number; size: number }
+  messages_out: { count: number; size: number }
+  time_to_first_message_in?: Duration
+  time_to_first_message_out?: Duration
+  last_message_at?: TimeStamp
+  longest_silence: Duration
+  idle_duration_before_close?: Duration
+  buffered_amount_max?: number
+  protocol?: string
+  setup_duration?: Duration
+}
+
 export type NetworkHeaders = Record<string, string>
 
 export interface ResourceRequest {