diff --git a/modules/outbrainBidAdapter.js b/modules/outbrainBidAdapter.js
index 439570e976e..e903f053c7e 100644
--- a/modules/outbrainBidAdapter.js
+++ b/modules/outbrainBidAdapter.js
@@ -27,9 +27,28 @@ export const spec = {
   gvlid: GVLID,
   supportedMediaTypes: [ NATIVE, BANNER ],
   isBidRequestValid: (bid) => {
+    if (typeof bid.params !== 'object') {
+      return false;
+    }
+
+    if (typeof deepAccess(bid, 'params.publisher.id') !== 'string') {
+      return false;
+    }
+
+    if (!!bid.params.tagid && typeof bid.params.tagid !== 'string') {
+      return false;
+    }
+
+    if (!!bid.params.bcat && (typeof bid.params.bcat !== 'object' || !bid.params.bcat.every(item => typeof item === 'string'))) {
+      return false;
+    }
+
+    if (!!bid.params.badv && (typeof bid.params.badv !== 'object' || !bid.params.badv.every(item => typeof item === 'string'))) {
+      return false;
+    }
+
     return (
       !!config.getConfig('outbrain.bidderUrl') &&
-      !!deepAccess(bid, 'params.publisher.id') &&
       !!(bid.nativeParams || bid.sizes)
     );
   },
@@ -67,6 +86,13 @@ export const spec = {
         }
       }
 
+      if (typeof bid.getFloor === 'function') {
+        const floor = _getFloor(bid, bid.nativeParams ? NATIVE : BANNER);
+        if (floor) {
+          imp.bidfloor = floor;
+        }
+      }
+
       return imp;
     });
 
@@ -190,7 +216,7 @@ export const spec = {
 registerBidder(spec);
 
 function parseNative(bid) {
-  const { assets, link, eventtrackers } = JSON.parse(bid.adm);
+  const { assets, link, privacy, eventtrackers } = JSON.parse(bid.adm);
   const result = {
     clickUrl: link.url,
     clickTrackers: link.clicktrackers || undefined
@@ -202,6 +228,9 @@ function parseNative(bid) {
       result[kind] = content.text || content.value || { url: content.url, width: content.w, height: content.h };
     }
   });
+  if (privacy) {
+    result.privacyLink = privacy;
+  }
   if (eventtrackers) {
     result.impressionTrackers = [];
     eventtrackers.forEach(tracker => {
@@ -251,8 +280,8 @@ function getNativeAssets(bid) {
 
       if (bidParams.sizes) {
         const sizes = flatten(bidParams.sizes);
-        w = sizes[0];
-        h = sizes[1];
+        w = parseInt(sizes[0], 10);
+        h = parseInt(sizes[1], 10);
       }
 
       asset[props.name] = {
@@ -291,3 +320,15 @@ function transformSizes(requestSizes) {
 
   return [];
 }
+
+function _getFloor(bid, type) {
+  const floorInfo = bid.getFloor({
+    currency: CURRENCY,
+    mediaType: type,
+    size: '*'
+  });
+  if (typeof floorInfo === 'object' && floorInfo.currency === CURRENCY && !isNaN(parseFloat(floorInfo.floor))) {
+    return parseFloat(floorInfo.floor);
+  }
+  return null;
+}
diff --git a/test/spec/modules/outbrainBidAdapter_spec.js b/test/spec/modules/outbrainBidAdapter_spec.js
index 4bc163aefe6..5dbdd049d82 100644
--- a/test/spec/modules/outbrainBidAdapter_spec.js
+++ b/test/spec/modules/outbrainBidAdapter_spec.js
@@ -100,6 +100,38 @@ describe('Outbrain Adapter', function () {
         }
         expect(spec.isBidRequestValid(bid)).to.equal(false)
       })
+      it('should fail if tag id is not string', function () {
+        const bid = {
+          bidder: 'outbrain',
+          params: {
+            tagid: 123
+          },
+          ...nativeBidRequestParams,
+        }
+        expect(spec.isBidRequestValid(bid)).to.equal(false)
+      })
+      it('should fail if badv does not include strings', function () {
+        const bid = {
+          bidder: 'outbrain',
+          params: {
+            tagid: 123,
+            badv: ['a', 2, 'c']
+          },
+          ...nativeBidRequestParams,
+        }
+        expect(spec.isBidRequestValid(bid)).to.equal(false)
+      })
+      it('should fail if bcat does not include strings', function () {
+        const bid = {
+          bidder: 'outbrain',
+          params: {
+            tagid: 123,
+            bcat: ['a', 2, 'c']
+          },
+          ...nativeBidRequestParams,
+        }
+        expect(spec.isBidRequestValid(bid)).to.equal(false)
+      })
       it('should succeed with outbrain config', function () {
         const bid = {
           bidder: 'outbrain',
@@ -362,6 +394,63 @@ describe('Outbrain Adapter', function () {
           {source: 'liveramp.com', uids: [{id: 'id-value', atype: 3}]}
         ]);
       });
+
+      it('should pass bidfloor', function () {
+        const bidRequest = {
+          ...commonBidRequest,
+          ...nativeBidRequestParams,
+        }
+        bidRequest.getFloor = function() {
+          return {
+            currency: 'USD',
+            floor: 1.23,
+          }
+        }
+
+        const res = spec.buildRequests([bidRequest], commonBidderRequest)
+        const resData = JSON.parse(res.data)
+        expect(resData.imp[0].bidfloor).to.equal(1.23)
+      });
+
+      it('should transform string sizes to numbers', function () {
+        let bidRequest = {
+          bidId: 'bidId',
+          params: {},
+          ...commonBidRequest,
+          ...nativeBidRequestParams,
+        };
+        bidRequest.nativeParams.image.sizes = ['120', '100']
+
+        const expectedNativeAssets = {
+          assets: [
+            {
+              required: 1,
+              id: 3,
+              img: {
+                type: 3,
+                w: 120,
+                h: 100
+              }
+            },
+            {
+              required: 1,
+              id: 0,
+              title: {}
+            },
+            {
+              required: 0,
+              id: 5,
+              data: {
+                type: 1
+              }
+            }
+          ]
+        }
+
+        let res = spec.buildRequests([bidRequest], commonBidderRequest);
+        const resData = JSON.parse(res.data)
+        expect(resData.imp[0].native.request).to.equal(JSON.stringify(expectedNativeAssets));
+      });
     })
 
     describe('interpretResponse', function () {
@@ -382,7 +471,7 @@ describe('Outbrain Adapter', function () {
                     impid: '1',
                     price: 1.1,
                     nurl: 'http://example.com/win/${AUCTION_PRICE}',
-                    adm: '{"ver":"1.2","assets":[{"id":3,"required":1,"img":{"url":"http://example.com/img/url","w":120,"h":100}},{"id":0,"required":1,"title":{"text":"Test title"}},{"id":5,"data":{"value":"Test sponsor"}}],"link":{"url":"http://example.com/click/url"},"eventtrackers":[{"event":1,"method":1,"url":"http://example.com/impression"}]}',
+                    adm: '{"ver":"1.2","assets":[{"id":3,"required":1,"img":{"url":"http://example.com/img/url","w":120,"h":100}},{"id":0,"required":1,"title":{"text":"Test title"}},{"id":5,"data":{"value":"Test sponsor"}}],"privacy":"http://example.com/privacy","link":{"url":"http://example.com/click/url"},"eventtrackers":[{"event":1,"method":1,"url":"http://example.com/impression"}]}',
                     adomain: [
                       'example.com'
                     ],
@@ -435,7 +524,8 @@ describe('Outbrain Adapter', function () {
               sponsoredBy: 'Test sponsor',
               impressionTrackers: [
                 'http://example.com/impression',
-              ]
+              ],
+              privacyLink: 'http://example.com/privacy'
             }
           }
         ]