diff --git a/packages/rum-core/src/browser/performanceObservable.ts b/packages/rum-core/src/browser/performanceObservable.ts
index bb2f97990d..b888260e7b 100644
--- a/packages/rum-core/src/browser/performanceObservable.ts
+++ b/packages/rum-core/src/browser/performanceObservable.ts
@@ -60,6 +60,7 @@ export interface RumPerformanceResourceTiming {
   encodedBodySize: number
   transferSize: number
   nextHopProtocol?: string
+  contentType?: string
   renderBlockingStatus?: string
   traceId?: string
   toJSON(): Omit<PerformanceEntry, 'toJSON'>
diff --git a/packages/rum-core/src/domain/resource/resourceCollection.spec.ts b/packages/rum-core/src/domain/resource/resourceCollection.spec.ts
index e36417cb59..03db33603d 100644
--- a/packages/rum-core/src/domain/resource/resourceCollection.spec.ts
+++ b/packages/rum-core/src/domain/resource/resourceCollection.spec.ts
@@ -80,6 +80,7 @@ describe('resourceCollection', () => {
         first_byte: jasmine.any(Object),
         status_code: 200,
         protocol: 'HTTP/1.0',
+        content_type: 'text/html',
         render_blocking_status: 'blocking',
       },
       type: RumEventType.RESOURCE,
@@ -118,6 +119,7 @@ describe('resourceCollection', () => {
         method: 'GET',
         status_code: 200,
         protocol: undefined,
+        content_type: undefined,
         type: ResourceType.XHR,
         url: 'https://resource.com/valid',
       },
@@ -232,6 +234,7 @@ describe('resourceCollection', () => {
         method: 'GET',
         status_code: 200,
         protocol: undefined,
+        content_type: undefined,
         type: ResourceType.FETCH,
         url: 'https://resource.com/valid',
       },
diff --git a/packages/rum-core/src/domain/resource/resourceCollection.ts b/packages/rum-core/src/domain/resource/resourceCollection.ts
index f3e7bb8a71..087cf1b539 100644
--- a/packages/rum-core/src/domain/resource/resourceCollection.ts
+++ b/packages/rum-core/src/domain/resource/resourceCollection.ts
@@ -31,6 +31,7 @@ import {
   computeResourceEntryType,
   computeResourceEntrySize,
   computeResourceEntryProtocol,
+  computeResourceContentType,
   isResourceEntryRequestType,
   isLongDataUrl,
   sanitizeDataUrl,
@@ -106,6 +107,7 @@ function processRequest(
         method: request.method,
         status_code: request.status,
         protocol: matchingTiming && computeResourceEntryProtocol(matchingTiming),
+        content_type: matchingTiming && computeResourceContentType(matchingTiming),
         url: isLongDataUrl(request.url) ? sanitizeDataUrl(request.url) : request.url,
       },
       type: RumEventType.RESOURCE as const,
@@ -155,6 +157,7 @@ function processResourceEntry(
         url: entry.name,
         status_code: discardZeroStatus(entry.responseStatus),
         protocol: computeResourceEntryProtocol(entry),
+        content_type: computeResourceContentType(entry),
       },
       type: RumEventType.RESOURCE as const,
       _dd: {
diff --git a/packages/rum-core/src/domain/resource/resourceUtils.ts b/packages/rum-core/src/domain/resource/resourceUtils.ts
index 5b738bfd97..666247f215 100644
--- a/packages/rum-core/src/domain/resource/resourceUtils.ts
+++ b/packages/rum-core/src/domain/resource/resourceUtils.ts
@@ -186,6 +186,10 @@ export function computeResourceEntryProtocol(entry: RumPerformanceResourceTiming
   return entry.nextHopProtocol === '' ? undefined : entry.nextHopProtocol
 }
 
+export function computeResourceContentType(entry: RumPerformanceResourceTiming) {
+  return entry.contentType === '' ? undefined : entry.contentType
+}
+
 export function computeResourceEntrySize(entry: RumPerformanceResourceTiming) {
   // Make sure a request actually occurred
   if (entry.startTime < entry.responseStart) {
diff --git a/packages/rum-core/src/rawRumEvent.types.ts b/packages/rum-core/src/rawRumEvent.types.ts
index 15f545431c..b58f074c78 100644
--- a/packages/rum-core/src/rawRumEvent.types.ts
+++ b/packages/rum-core/src/rawRumEvent.types.ts
@@ -49,6 +49,7 @@ export interface RawRumResourceEvent {
     first_byte?: ResourceEntryDetailsElement
     download?: ResourceEntryDetailsElement
     protocol?: string
+    content_type?: string
   }
   _dd: {
     trace_id?: string
diff --git a/packages/rum-core/test/fixtures.ts b/packages/rum-core/test/fixtures.ts
index 346959ea49..db92d30ea8 100644
--- a/packages/rum-core/test/fixtures.ts
+++ b/packages/rum-core/test/fixtures.ts
@@ -260,6 +260,7 @@ export function createPerformanceEntry<T extends RumPerformanceEntryType>(
           startTime: 200 as RelativeTime,
           responseStatus: 200,
           nextHopProtocol: 'HTTP/1.0',
+          contentType: 'text/html',
         },
         overrides
       ) as EntryTypeToReturnType[T]