diff --git a/Dalamud/Plugin/Internal/Types/LocalPlugin.cs b/Dalamud/Plugin/Internal/Types/LocalPlugin.cs
index f9fe09b68..344ba3c28 100644
--- a/Dalamud/Plugin/Internal/Types/LocalPlugin.cs
+++ b/Dalamud/Plugin/Internal/Types/LocalPlugin.cs
@@ -209,6 +209,12 @@ internal class LocalPlugin : IDisposable
     /// </summary>
     public bool IsTesting => this.Manifest.IsTestingExclusive || this.Manifest.Testing;
 
+    /// <summary>
+    /// Gets a value indicating whether or not this plugin is orphaned(belongs to a repo) or not.
+    /// </summary>
+    public bool IsOrphaned => !this.IsDev && !this.Manifest.InstalledFromUrl.IsNullOrEmpty() &&
+                              Service<PluginManager>.Get().Repos.All(x => x.PluginMasterUrl != this.Manifest.InstalledFromUrl);
+
     /// <summary>
     /// Gets a value indicating whether this plugin has been banned.
     /// </summary>
@@ -302,6 +308,9 @@ internal class LocalPlugin : IDisposable
             if (this.Manifest.Disabled)
                 throw new InvalidPluginOperationException($"Unable to load {this.Name}, disabled");
 
+            if (this.IsOrphaned)
+                throw new InvalidPluginOperationException($"Plugin {this.Name} had no associated repo.");
+
             this.State = PluginState.Loading;
             Log.Information($"Loading {this.DllFile.Name}");
 
diff --git a/Dalamud/Plugin/Internal/Types/LocalPluginManifest.cs b/Dalamud/Plugin/Internal/Types/LocalPluginManifest.cs
index 261f28b0e..0853b19be 100644
--- a/Dalamud/Plugin/Internal/Types/LocalPluginManifest.cs
+++ b/Dalamud/Plugin/Internal/Types/LocalPluginManifest.cs
@@ -1,5 +1,6 @@
 using System.IO;
 
+using Dalamud.Utility;
 using Newtonsoft.Json;
 
 namespace Dalamud.Plugin.Internal.Types;
@@ -33,7 +34,7 @@ internal record LocalPluginManifest : PluginManifest
     /// Gets a value indicating whether this manifest is associated with a plugin that was installed from a third party
     /// repo. Unless the manifest has been manually modified, this is determined by the InstalledFromUrl being null.
     /// </summary>
-    public bool IsThirdParty => !string.IsNullOrEmpty(this.InstalledFromUrl);
+    public bool IsThirdParty => !this.InstalledFromUrl.IsNullOrEmpty() && this.InstalledFromUrl != PluginRepository.MainRepoUrl;
 
     /// <summary>
     /// Save a plugin manifest to file.
diff --git a/Dalamud/Plugin/Internal/Types/PluginRepository.cs b/Dalamud/Plugin/Internal/Types/PluginRepository.cs
index 63ea5c5d4..82e4fb13d 100644
--- a/Dalamud/Plugin/Internal/Types/PluginRepository.cs
+++ b/Dalamud/Plugin/Internal/Types/PluginRepository.cs
@@ -15,7 +15,10 @@ namespace Dalamud.Plugin.Internal.Types;
 /// </summary>
 internal class PluginRepository
 {
-    private const string DalamudPluginsMasterUrl = "https://kamori.goats.dev/Plugin/PluginMaster";
+    /// <summary>
+    /// The URL of the official main repository.
+    /// </summary>
+    public const string MainRepoUrl = "https://kamori.goats.dev/Plugin/PluginMaster";
 
     private static readonly ModuleLog Log = new("PLUGINR");
 
@@ -38,14 +41,14 @@ internal class PluginRepository
     public PluginRepository(string pluginMasterUrl, bool isEnabled)
     {
         this.PluginMasterUrl = pluginMasterUrl;
-        this.IsThirdParty = pluginMasterUrl != DalamudPluginsMasterUrl;
+        this.IsThirdParty = pluginMasterUrl != MainRepoUrl;
         this.IsEnabled = isEnabled;
     }
 
     /// <summary>
     /// Gets a new instance of the <see cref="PluginRepository"/> class for the main repo.
     /// </summary>
-    public static PluginRepository MainRepo => new(DalamudPluginsMasterUrl, true);
+    public static PluginRepository MainRepo => new(MainRepoUrl, true);
 
     /// <summary>
     /// Gets the pluginmaster.json URL.