diff --git a/static/bidder-info/adkernel.yaml b/static/bidder-info/adkernel.yaml
index 8d9096b271c..a267bb672db 100644
--- a/static/bidder-info/adkernel.yaml
+++ b/static/bidder-info/adkernel.yaml
@@ -12,4 +12,5 @@ capabilities:
 userSync:
   redirect:
     url: "https://sync.adkernel.com/user-sync?t=image&gdpr={{.GDPR}}&gdpr_consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&r={{.RedirectURL}}"
-    userMacro: "{UID}"
\ No newline at end of file
+    userMacro: "{UID}"
+endpointCompression: "GZIP"
\ No newline at end of file
diff --git a/static/bidder-info/improvedigital.yaml b/static/bidder-info/improvedigital.yaml
index 649246abf09..3a33275faa9 100644
--- a/static/bidder-info/improvedigital.yaml
+++ b/static/bidder-info/improvedigital.yaml
@@ -16,3 +16,4 @@ userSync:
   redirect:
     url: "https://ad.360yield.com/server_match?gdpr={{.GDPR}}&gdpr_consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&r={{.RedirectURL}}"
     userMacro: "{PUB_USER_ID}"
+endpointCompression: "GZIP"
\ No newline at end of file
diff --git a/static/bidder-info/invibes.yaml b/static/bidder-info/invibes.yaml
index 6b7cd6a1f3c..1b87ea09b17 100644
--- a/static/bidder-info/invibes.yaml
+++ b/static/bidder-info/invibes.yaml
@@ -9,4 +9,5 @@ userSync:
   # invibes supports user syncing, but requires configuration by the host. contact this
   # bidder directly at the email address in this file to ask about enabling user sync.
   supports:
-    - iframe
\ No newline at end of file
+    - iframe
+endpointCompression: "GZIP"
\ No newline at end of file
diff --git a/static/bidder-info/kargo.yaml b/static/bidder-info/kargo.yaml
index 689d9b5d3b0..852c7ef3f8c 100644
--- a/static/bidder-info/kargo.yaml
+++ b/static/bidder-info/kargo.yaml
@@ -12,3 +12,4 @@ userSync:
   redirect:
     url: "https://crb.kargo.com/api/v1/dsync/PrebidServer?gdpr={{.GDPR}}&gdpr_consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&r={{.RedirectURL}}"
     userMacro: "$UID"
+endpointCompression: "GZIP"
\ No newline at end of file
diff --git a/static/bidder-info/mobilefuse.yaml b/static/bidder-info/mobilefuse.yaml
index 18a90a8866e..1a58889804c 100644
--- a/static/bidder-info/mobilefuse.yaml
+++ b/static/bidder-info/mobilefuse.yaml
@@ -6,3 +6,4 @@ capabilities:
     mediaTypes:
       - banner
       - video
+endpointCompression: "GZIP"
\ No newline at end of file
diff --git a/static/bidder-info/onetag.yaml b/static/bidder-info/onetag.yaml
index b0aeeafe347..1a00a9f3a07 100644
--- a/static/bidder-info/onetag.yaml
+++ b/static/bidder-info/onetag.yaml
@@ -16,3 +16,4 @@ userSync:
   iframe:
     url: "https://onetag-sys.com/usync/?redir={{.RedirectURL}}"
     userMacro: "${USER_TOKEN}"
+endpointCompression: "GZIP"
\ No newline at end of file
diff --git a/static/bidder-info/triplelift.yaml b/static/bidder-info/triplelift.yaml
index 8a86428d56d..0347161da33 100644
--- a/static/bidder-info/triplelift.yaml
+++ b/static/bidder-info/triplelift.yaml
@@ -19,4 +19,5 @@ userSync:
     userMacro: $UID
   redirect:
     url: "https://eb2.3lift.com/getuid?gdpr={{.GDPR}}&cmp_cs={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&redir={{.RedirectURL}}"
-    userMacro: "$UID"
\ No newline at end of file
+    userMacro: "$UID"
+endpointCompression: "GZIP"
\ No newline at end of file