diff --git a/modules/dailymotionBidAdapter.js b/modules/dailymotionBidAdapter.js
index ff8e52d6d11..2be5edad78e 100644
--- a/modules/dailymotionBidAdapter.js
+++ b/modules/dailymotionBidAdapter.js
@@ -17,17 +17,31 @@ function getVideoMetadata(bidRequest, bidderRequest) {
     ...videoBidderParams, // Bidder Specific overrides
   };
 
+  // Store as object keys to ensure uniqueness
+  const iabcat1 = {};
+  const iabcat2 = {};
+
+  deepAccess(bidderRequest, 'ortb2.site.content.data', []).forEach((data) => {
+    if ([4, 5, 6, 7].includes(data?.ext?.segtax)) {
+      (Array.isArray(data.segment) ? data.segment : []).forEach((segment) => {
+        if (typeof segment.id === 'string') {
+          // See https://docs.prebid.org/features/firstPartyData.html#segments-and-taxonomy
+          // Only take IAB cats of taxonomy V1
+          if (data.ext.segtax === 4) iabcat1[segment.id] = 1;
+          // Only take IAB cats of taxonomy V2 or higher
+          if ([5, 6, 7].includes(data.ext.segtax)) iabcat2[segment.id] = 1;
+        }
+      });
+    }
+  });
+
   const videoMetadata = {
     description: videoParams.description || '',
     duration: videoParams.duration || 0,
-    iabcat1: deepAccess(bidderRequest, 'ortb2.site.content.cat', [])
-      // Only take IAB cats of taxonomy V1
-      .filter(cat => cat.toLowerCase().indexOf('iab-') === 0),
+    iabcat1: Object.keys(iabcat1),
     iabcat2: Array.isArray(videoParams.iabcat2)
       ? videoParams.iabcat2
-      // Only take IAB cats of taxonomy V2 or higher by excluding "IAB-" type categories
-      : deepAccess(bidderRequest, 'ortb2.site.content.cat', [])
-        .filter(cat => cat.toLowerCase().indexOf('iab-') !== 0),
+      : Object.keys(iabcat2),
     id: videoParams.id || '',
     lang: videoParams.lang || '',
     private: videoParams.private || false,
diff --git a/test/spec/modules/dailymotionBidAdapter_spec.js b/test/spec/modules/dailymotionBidAdapter_spec.js
index e5a20fa6b6e..a102c26dca2 100644
--- a/test/spec/modules/dailymotionBidAdapter_spec.js
+++ b/test/spec/modules/dailymotionBidAdapter_spec.js
@@ -78,7 +78,18 @@ describe('dailymotionBidAdapterTests', () => {
         },
         site: {
           content: {
-            cat: ['IAB-1', '200'],
+            data: [
+              {
+                name: 'dataprovider.com',
+                ext: { segtax: 4 },
+                segment: [{ id: 'IAB-1' }],
+              },
+              {
+                name: 'dataprovider.com',
+                ext: { segtax: 5 },
+                segment: [{ id: '200' }],
+              },
+            ],
           },
         },
       },
@@ -171,7 +182,46 @@ describe('dailymotionBidAdapterTests', () => {
         },
         site: {
           content: {
-            cat: ['6', '17'],
+            data: [
+              undefined, // Undefined to check proper handling of edge cases
+              {}, // Empty object to check proper handling of edge cases
+              { ext: {} }, // Empty ext to check proper handling of edge cases
+              {
+                name: 'dataprovider.com',
+                ext: { segtax: 22 }, // Invalid segtax to check proper handling of edge cases
+                segment: [{ id: '400' }],
+              },
+              {
+                name: 'dataprovider.com',
+                ext: { segtax: 5 },
+                segment: undefined, // Invalid segment to check proper handling of edge cases
+              },
+              {
+                name: 'dataprovider.com',
+                ext: { segtax: 4 },
+                segment: undefined, // Invalid segment to check proper handling of edge cases
+              },
+              {
+                name: 'dataprovider.com',
+                ext: { segtax: 4 },
+                segment: [{ id: 2222 }], // Invalid segment id to check proper handling of edge cases
+              },
+              {
+                name: 'dataprovider.com',
+                ext: { segtax: 5 },
+                segment: [{ id: '6' }],
+              },
+              {
+                name: 'dataprovider.com',
+                ext: { segtax: 5 },
+                segment: [{ id: '6' }], // Check that same cat won't be duplicated
+              },
+              {
+                name: 'dataprovider.com',
+                ext: { segtax: 5 },
+                segment: [{ id: '17' }, { id: '20' }],
+              },
+            ],
           },
         },
       },
@@ -206,7 +256,7 @@ describe('dailymotionBidAdapterTests', () => {
       description: bidRequestData[0].mediaTypes.video.description,
       // No iabcat1 here because nothing matches taxonomy
       iabcat1: [],
-      iabcat2: bidderRequestData.ortb2.site.content.cat,
+      iabcat2: ['6', '17', '20'],
       id: bidRequestData[0].params.video.id,
       lang: bidRequestData[0].params.video.lang,
       private: bidRequestData[0].params.video.private,