diff --git a/src/main/java/org/prebid/server/proto/openrtb/ext/request/adagio/ExtImpAdagio.java b/src/main/java/org/prebid/server/proto/openrtb/ext/request/adagio/ExtImpAdagio.java
index 37db89821b5..fb8cc3ed7b6 100644
--- a/src/main/java/org/prebid/server/proto/openrtb/ext/request/adagio/ExtImpAdagio.java
+++ b/src/main/java/org/prebid/server/proto/openrtb/ext/request/adagio/ExtImpAdagio.java
@@ -11,6 +11,8 @@ public class ExtImpAdagio {
 
     String placement;
 
+    String site;
+
     String pagetype;
 
     String category;
diff --git a/src/main/resources/bidder-config/adagio.yaml b/src/main/resources/bidder-config/adagio.yaml
index c252b39c5af..1d25dca1cab 100644
--- a/src/main/resources/bidder-config/adagio.yaml
+++ b/src/main/resources/bidder-config/adagio.yaml
@@ -2,9 +2,9 @@ adapters:
   adagio:
     # Please deploy this config in each of your datacenters with the appropriate regional subdomain.
     # Replace the `REGION` by one of the value below:
-    # - For AMER: las => (https://mp-las.4dex.io/pbserver)
-    # - For EMEA: ams => (https://mp-ams.4dex.io/pbserver)
-    # - For APAC: tyo => (https://mp-tyo.4dex.io/pbserver)
+    # - For AMER: las => (https://mp-las.4dex.io/pbserver and https://u-las.4dex.io/pbserver/usync.html)
+    # - For EMEA: ams => (https://mp-ams.4dex.io/pbserver and https://u-amx.4dex.io/pbserver/usync.html)
+    # - For APAC: tyo => (https://mp-tyo.4dex.io/pbserver and https://u-tyo.4dex.io/pbserver/usync.html)
     endpoint: https://mp-REGION.4dex.io/pbserver
     ortb-version: "2.6"
     endpoint-compression: gzip
@@ -20,3 +20,9 @@ adapters:
         - native
       supported-vendors:
       vendor-id: 617
+    usersync:
+      cookie-family-name: adagio
+      iframe:
+        url: https://u-REGION.4dex.io/pbserver/usync.html?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&us_privacy={{us_privacy}}&gpp={{gpp}}&&gpp_sid={{gpp_sid}}&r={{redirect_url}}
+        support-cors: false
+        uid-macro: '{UID}'
diff --git a/src/main/resources/static/bidder-params/adagio.json b/src/main/resources/static/bidder-params/adagio.json
index bacb62125ca..ce053031e49 100644
--- a/src/main/resources/static/bidder-params/adagio.json
+++ b/src/main/resources/static/bidder-params/adagio.json
@@ -13,6 +13,11 @@
       "description": "Refers to the placement of an adunit in a page. Must not contain any information about the type of device.",
       "maxLength": 30
     },
+    "site": {
+      "type": "string",
+      "description": "Name of the site. Handed out by Adagio.",
+      "maxLength": 50
+    },
     "pagetype": {
       "type": "string",
       "description": "Describes what kind of content will be present in the page.",