diff --git a/FoodsharingSiegen.Contracts/Model/AppSettings.cs b/FoodsharingSiegen.Contracts/Model/AppSettings.cs
index 0402934..3ce1f23 100644
--- a/FoodsharingSiegen.Contracts/Model/AppSettings.cs
+++ b/FoodsharingSiegen.Contracts/Model/AppSettings.cs
@@ -3,9 +3,11 @@
     public class AppSettings
     {
         #region Public Properties
-        
+
         public TermSettings Terms { get; set; } = new();
 
+        public bool TestMode { get; set; }
+
         #endregion
     }
 }
\ No newline at end of file
diff --git a/FoodsharingSiegen.Server/Pages/Prospects.razor b/FoodsharingSiegen.Server/Pages/Prospects.razor
index 624d5d0..14a81fd 100644
--- a/FoodsharingSiegen.Server/Pages/Prospects.razor
+++ b/FoodsharingSiegen.Server/Pages/Prospects.razor
@@ -8,6 +8,11 @@
 <PageTitle>Neue Foodsaver - @AppSettings.Terms.Title</PageTitle>
 <h2>Neue Foodsaver</h2>
 
+@if (AppSettings.TestMode)
+{
+    <div class="alert alert-danger"><strong>TESTMODUS!</strong> Änderungen werden wieder gelöscht.</div>
+}
+
 <Button
     Color="Color.Primary"
     Clicked="@CreateProspectAsync"
diff --git a/FoodsharingSiegen.Server/Pages/ProspectsAll.razor b/FoodsharingSiegen.Server/Pages/ProspectsAll.razor
index 441cf6a..f6d62da 100644
--- a/FoodsharingSiegen.Server/Pages/ProspectsAll.razor
+++ b/FoodsharingSiegen.Server/Pages/ProspectsAll.razor
@@ -4,9 +4,13 @@
 @inherits FsBase
 
 <PageTitle>Alle (Admin) - @AppSettings.Terms.Title</PageTitle>
-
 <h2>Alle (Admin)</h2>
 
+@if (AppSettings.TestMode)
+{
+    <div class="alert alert-danger"><strong>TESTMODUS!</strong> Änderungen werden wieder gelöscht.</div>
+}
+
 @{
     var filterList = ProspectList.ApplyFilter(Filter);
 }
diff --git a/FoodsharingSiegen.Server/Pages/ProspectsDone.razor b/FoodsharingSiegen.Server/Pages/ProspectsDone.razor
index 24b4e5b..28bdf11 100644
--- a/FoodsharingSiegen.Server/Pages/ProspectsDone.razor
+++ b/FoodsharingSiegen.Server/Pages/ProspectsDone.razor
@@ -6,6 +6,11 @@
 <PageTitle>Abgeschlossen - @AppSettings.Terms.Title</PageTitle>
 <h2>Abgeschlossen</h2>
 
+@if (AppSettings.TestMode)
+{
+    <div class="alert alert-danger"><strong>TESTMODUS!</strong> Änderungen werden wieder gelöscht.</div>
+}
+
 @{
     var filterList = ProspectList.ApplyFilter(Filter);
 }
diff --git a/FoodsharingSiegen.Server/Pages/ProspectsVerify.razor b/FoodsharingSiegen.Server/Pages/ProspectsVerify.razor
index 74d9848..9212620 100644
--- a/FoodsharingSiegen.Server/Pages/ProspectsVerify.razor
+++ b/FoodsharingSiegen.Server/Pages/ProspectsVerify.razor
@@ -4,9 +4,13 @@
 @inherits FsBase
 
 <PageTitle>Freischalten - @AppSettings.Terms.Title</PageTitle>
-
 <h2>Freischalten</h2>
 
+@if (AppSettings.TestMode)
+{
+    <div class="alert alert-danger"><strong>TESTMODUS!</strong> Änderungen werden wieder gelöscht.</div>
+}
+
 @{
     var filterList = ProspectList.ApplyFilter(Filter);
 }
diff --git a/FoodsharingSiegen.Server/config/appsettings.json b/FoodsharingSiegen.Server/config/appsettings.json
index bf6d20f..8b02548 100644
--- a/FoodsharingSiegen.Server/config/appsettings.json
+++ b/FoodsharingSiegen.Server/config/appsettings.json
@@ -8,6 +8,7 @@
   },
   "DetailedErrors": true,
   "Settings": {
+    "TestMode": true,
     "Terms": {
       "Title": "Foodsharing Musterhausen",
       "TitleShort": "Musterhausen",