diff --git a/Allowlist.txt b/Allowlist.txt
index de2c2ab..f1244b9 100644
--- a/Allowlist.txt
+++ b/Allowlist.txt
@@ -104,6 +104,11 @@ api-mobile.cleverpush.com
 # ⚠️ Adobe Tag Manager (lädt Such- und API-Skripte)
 assets.adobedtm.com
 
+# 🟢 API Attestation (erforderlich für Such- und Buchungs-API)
+attest.approov.io
+attest.api.approov.io
+haine.approval.com
+
 # ⚠️ Adobe Experience Cloud Endpoint
 eurowings.com.ssl.sc.omtrdc.net
 mboxedge37.tt.omtrdc.net