diff --git a/adapters/datablocks/datablocks.go b/adapters/datablocks/datablocks.go
index 8929c84853a..a39721a44a3 100644
--- a/adapters/datablocks/datablocks.go
+++ b/adapters/datablocks/datablocks.go
@@ -27,7 +27,7 @@ func (a *DatablocksAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *
 		"Accept":       {"application/json"},
 	}
 
-	// Pull the host and source ID info from the bidder params.
+	// Pull the source ID info from the bidder params.
 	reqImps, err := splitImpressions(request.Imp)
 
 	if err != nil {
@@ -45,7 +45,7 @@ func (a *DatablocksAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *
 			continue
 		}
 
-		urlParams := macros.EndpointTemplateParams{Host: reqExt.Host, SourceId: strconv.Itoa(reqExt.SourceId)}
+		urlParams := macros.EndpointTemplateParams{SourceId: strconv.Itoa(reqExt.SourceId)}
 		url, err := macros.ResolveMacros(a.EndpointTemplate, urlParams)
 
 		if err != nil {
@@ -137,7 +137,7 @@ func getBidderParams(imp *openrtb2.Imp) (*openrtb_ext.ExtImpDatablocks, error) {
 	var datablocksExt openrtb_ext.ExtImpDatablocks
 	if err := json.Unmarshal(bidderExt.Bidder, &datablocksExt); err != nil {
 		return nil, &errortypes.BadInput{
-			Message: fmt.Sprintf("Cannot Resolve host or sourceId: %s", err.Error()),
+			Message: fmt.Sprintf("Cannot Resolve sourceId: %s", err.Error()),
 		}
 	}
 
@@ -147,12 +147,6 @@ func getBidderParams(imp *openrtb2.Imp) (*openrtb_ext.ExtImpDatablocks, error) {
 		}
 	}
 
-	if len(datablocksExt.Host) < 1 {
-		return nil, &errortypes.BadInput{
-			Message: "Invalid/Missing Host",
-		}
-	}
-
 	return &datablocksExt, nil
 }
 
diff --git a/adapters/datablocks/datablockstest/exemplary/multi-request.json b/adapters/datablocks/datablockstest/exemplary/multi-request.json
index 286e058a72e..eafd80927fa 100644
--- a/adapters/datablocks/datablockstest/exemplary/multi-request.json
+++ b/adapters/datablocks/datablockstest/exemplary/multi-request.json
@@ -17,7 +17,7 @@
             {
                 "bidder":
                 {
-                    "host": "search.nutella.datablocks.net",
+                    "host": "pbserver.dblks.net",
                     "sourceId": 906295
                 }
             }
@@ -34,7 +34,7 @@
             {
                 "bidder":
                 {
-                    "host": "search.nutella.datablocks.net",
+                    "host": "pbserver.dblks.net",
                     "sourceId": 906295
                 }
             }
@@ -54,7 +54,7 @@
     {
         "expectedRequest":
         {
-            "uri": "http://search.nutella.datablocks.net/openrtb2?sid=906295",
+            "uri": "http://pbserver.dblks.net/openrtb2?sid=906295",
             "body":
             {
                 "id": "some-request-id",
@@ -73,7 +73,7 @@
                     {
                         "bidder":
                         {
-                            "host": "search.nutella.datablocks.net",
+                            "host": "pbserver.dblks.net",
                             "sourceId": 906295
                         }
                     }
@@ -91,7 +91,7 @@
                     {
                         "bidder":
                         {
-                            "host": "search.nutella.datablocks.net",
+                            "host": "pbserver.dblks.net",
                             "sourceId": 906295
                         }
                     }
diff --git a/adapters/datablocks/datablockstest/exemplary/native.json b/adapters/datablocks/datablockstest/exemplary/native.json
index 9487079c734..c4cf189e1b4 100644
--- a/adapters/datablocks/datablockstest/exemplary/native.json
+++ b/adapters/datablocks/datablockstest/exemplary/native.json
@@ -14,7 +14,7 @@
             {
                 "bidder":
                 {
-                    "host": "search.nutella.datablocks.net",
+                    "host": "pbserver.dblks.net",
                     "sourceId": 906295
                 }
             }
@@ -38,7 +38,7 @@
     {
         "expectedRequest":
         {
-            "uri": "http://search.nutella.datablocks.net/openrtb2?sid=906295",
+            "uri": "http://pbserver.dblks.net/openrtb2?sid=906295",
             "body":
             {
                 "id": "some-request-id",
@@ -54,7 +54,7 @@
                     {
                         "bidder":
                         {
-                            "host": "search.nutella.datablocks.net",
+                            "host": "pbserver.dblks.net",
                             "sourceId": 906295
                         }
                     }
diff --git a/adapters/datablocks/datablockstest/exemplary/simple-banner.json b/adapters/datablocks/datablockstest/exemplary/simple-banner.json
index 289549ab588..5c01a29a519 100644
--- a/adapters/datablocks/datablockstest/exemplary/simple-banner.json
+++ b/adapters/datablocks/datablockstest/exemplary/simple-banner.json
@@ -21,7 +21,7 @@
             {
                 "bidder":
                 {
-                    "host": "search.nutella.datablocks.net",
+                    "host": "pbserver.dblks.net",
                     "sourceId": 906295
                 }
             }
@@ -41,7 +41,7 @@
     {
         "expectedRequest":
         {
-            "uri": "http://search.nutella.datablocks.net/openrtb2?sid=906295",
+            "uri": "http://pbserver.dblks.net/openrtb2?sid=906295",
             "body":
             {
                 "id": "some-request-id",
@@ -64,7 +64,7 @@
                     {
                         "bidder":
                         {
-                            "host": "search.nutella.datablocks.net",
+                            "host": "pbserver.dblks.net",
                             "sourceId": 906295
                         }
                     }
diff --git a/adapters/datablocks/datablockstest/exemplary/simple-video.json b/adapters/datablocks/datablockstest/exemplary/simple-video.json
index 6f8073107f3..fcb2defa649 100644
--- a/adapters/datablocks/datablockstest/exemplary/simple-video.json
+++ b/adapters/datablocks/datablockstest/exemplary/simple-video.json
@@ -18,7 +18,7 @@
             {
                 "bidder":
                 {
-                    "host": "search.nutella.datablocks.net",
+                    "host": "pbserver.dblks.net",
                     "sourceId": 906295
                 }
             }
@@ -39,7 +39,7 @@
     {
         "expectedRequest":
         {
-            "uri": "http://search.nutella.datablocks.net/openrtb2?sid=906295",
+            "uri": "http://pbserver.dblks.net/openrtb2?sid=906295",
             "body":
             {
                 "id": "some-request-id",
@@ -59,7 +59,7 @@
                     {
                         "bidder":
                         {
-                            "host": "search.nutella.datablocks.net",
+                            "host": "pbserver.dblks.net",
                             "sourceId": 906295
                         }
                     }
diff --git a/adapters/datablocks/datablockstest/supplemental/bad-response-body.json b/adapters/datablocks/datablockstest/supplemental/bad-response-body.json
index 7c4801e1685..e60c6aabb7d 100644
--- a/adapters/datablocks/datablockstest/supplemental/bad-response-body.json
+++ b/adapters/datablocks/datablockstest/supplemental/bad-response-body.json
@@ -17,7 +17,7 @@
             {
                 "bidder":
                 {
-                    "host": "search.nutella.datablocks.net",
+                    "host": "pbserver.dblks.net",
                     "sourceId": 123
                 }
             }
@@ -37,7 +37,7 @@
     {
         "expectedRequest":
         {
-            "uri": "http://search.nutella.datablocks.net/openrtb2?sid=123",
+            "uri": "http://pbserver.dblks.net/openrtb2?sid=123",
             "body":
             {
                 "id": "some-request-id",
@@ -56,7 +56,7 @@
                     {
                         "bidder":
                         {
-                            "host": "search.nutella.datablocks.net",
+                            "host": "pbserver.dblks.net",
                             "sourceId": 123
                         }
                     }
diff --git a/adapters/datablocks/datablockstest/supplemental/bad-server-response.json b/adapters/datablocks/datablockstest/supplemental/bad-server-response.json
index da2924f6f21..cdcc0c37d4c 100644
--- a/adapters/datablocks/datablockstest/supplemental/bad-server-response.json
+++ b/adapters/datablocks/datablockstest/supplemental/bad-server-response.json
@@ -17,7 +17,7 @@
             {
                 "bidder":
                 {
-                    "host": "search.nutella.datablocks.net",
+                    "host": "pbserver.dblks.net",
                     "sourceId": 123
                 }
             }
@@ -37,7 +37,7 @@
     {
         "expectedRequest":
         {
-            "uri": "http://search.nutella.datablocks.net/openrtb2?sid=123",
+            "uri": "http://pbserver.dblks.net/openrtb2?sid=123",
             "body":
             {
                 "id": "some-request-id",
@@ -56,7 +56,7 @@
                     {
                         "bidder":
                         {
-                            "host": "search.nutella.datablocks.net",
+                            "host": "pbserver.dblks.net",
                             "sourceId": 123
                         }
                     }
diff --git a/adapters/datablocks/datablockstest/supplemental/bad-sourceId.json b/adapters/datablocks/datablockstest/supplemental/bad-sourceId.json
index 08f2fddf568..3182e71dc84 100644
--- a/adapters/datablocks/datablockstest/supplemental/bad-sourceId.json
+++ b/adapters/datablocks/datablockstest/supplemental/bad-sourceId.json
@@ -16,7 +16,7 @@
         {
           "bidder":
           {
-              "host": "search.nutella.datablocks.net",
+              "host": "pbserver.dblks.net",
               "sourceId": 0
           }
         }
diff --git a/adapters/datablocks/datablockstest/supplemental/no-content-response.json b/adapters/datablocks/datablockstest/supplemental/no-content-response.json
index 7fc1b75c3ad..0e53f4720a9 100644
--- a/adapters/datablocks/datablockstest/supplemental/no-content-response.json
+++ b/adapters/datablocks/datablockstest/supplemental/no-content-response.json
@@ -17,7 +17,7 @@
             {
                 "bidder":
                 {
-                    "host": "search.nutella.datablocks.net",
+                    "host": "pbserver.dblks.net",
                     "sourceId": 123
                 }
             }
@@ -37,7 +37,7 @@
     {
         "expectedRequest":
         {
-            "uri": "http://search.nutella.datablocks.net/openrtb2?sid=123",
+            "uri": "http://pbserver.dblks.net/openrtb2?sid=123",
             "body":
             {
                 "id": "some-request-id",
@@ -56,7 +56,7 @@
                     {
                         "bidder":
                         {
-                            "host": "search.nutella.datablocks.net",
+                            "host": "pbserver.dblks.net",
                             "sourceId": 123
                         }
                     }
diff --git a/openrtb_ext/imp_datablocks.go b/openrtb_ext/imp_datablocks.go
index c8659d3ff11..2be043c5976 100644
--- a/openrtb_ext/imp_datablocks.go
+++ b/openrtb_ext/imp_datablocks.go
@@ -3,5 +3,4 @@ package openrtb_ext
 // ExtImpDatablocks defines the contract for bidrequest.imp[i].ext.prebid.bidder.datablocks
 type ExtImpDatablocks struct {
 	SourceId int    `json:"sourceId"`
-	Host     string `json:"host"`
 }
diff --git a/static/bidder-params/datablocks.json b/static/bidder-params/datablocks.json
index 2abb986786b..59b7f94706c 100644
--- a/static/bidder-params/datablocks.json
+++ b/static/bidder-params/datablocks.json
@@ -9,11 +9,7 @@
         "type": "integer",
         "minimum": 1,
         "description": "Website Source Id"
-      },
-      "host": {
-        "type": "string",
-        "description": "Network Host to request from"
       }
   },
-  "required": ["host", "sourceId"]
+  "required": ["sourceId"]
 }