diff --git a/NzbDrone.Core/Exceptions/BadRequestException.cs b/NzbDrone.Core/Exceptions/BadRequestException.cs
index 212b69e87..adf8bf57f 100644
--- a/NzbDrone.Core/Exceptions/BadRequestException.cs
+++ b/NzbDrone.Core/Exceptions/BadRequestException.cs
@@ -4,11 +4,11 @@ namespace NzbDrone.Core.Exceptions
 {
     public class BadRequestException : DownstreamException
     {
-        public BadRequestException(HttpStatusCode statusCode, string message) : base(statusCode, message)
+        public BadRequestException(string message) : base(HttpStatusCode.BadRequest, message)
         {
         }
 
-        public BadRequestException(HttpStatusCode statusCode, string message, params object[] args) : base(statusCode, message, args)
+        public BadRequestException(string message, params object[] args) : base(HttpStatusCode.BadRequest, message, args)
         {
         }
     }
diff --git a/NzbDrone.Core/Exceptions/StatusCodeToExceptions.cs b/NzbDrone.Core/Exceptions/StatusCodeToExceptions.cs
index 10513d9c6..8deb955bb 100644
--- a/NzbDrone.Core/Exceptions/StatusCodeToExceptions.cs
+++ b/NzbDrone.Core/Exceptions/StatusCodeToExceptions.cs
@@ -15,7 +15,7 @@ namespace NzbDrone.Core.Exceptions
             switch (statusCode)
             {
                 case HttpStatusCode.BadRequest:
-                    throw new BadRequestException(statusCode, message);
+                    throw new BadRequestException(message);
 
                 case HttpStatusCode.Unauthorized:
                     throw new UnauthorizedAccessException(message);
diff --git a/NzbDrone.Core/Indexers/IndexerService.cs b/NzbDrone.Core/Indexers/IndexerService.cs
index 2c87569e3..e1b49c2dd 100644
--- a/NzbDrone.Core/Indexers/IndexerService.cs
+++ b/NzbDrone.Core/Indexers/IndexerService.cs
@@ -37,14 +37,20 @@ namespace NzbDrone.Core.Indexers
     {
         private readonly IIndexerRepository _indexerRepository;
         private readonly IConfigFileProvider _configFileProvider;
+        private readonly INewznabTestService _newznabTestService;
         private readonly Logger _logger;
 
         private readonly List<IIndexer> _indexers;
 
-        public IndexerService(IIndexerRepository indexerRepository, IEnumerable<IIndexer> indexers, IConfigFileProvider configFileProvider, Logger logger)
+        public IndexerService(IIndexerRepository indexerRepository,
+                              IEnumerable<IIndexer> indexers,
+            IConfigFileProvider configFileProvider,
+            INewznabTestService newznabTestService,
+            Logger logger)
         {
             _indexerRepository = indexerRepository;
             _configFileProvider = configFileProvider;
+            _newznabTestService = newznabTestService;
             _logger = logger;
 
 
@@ -104,6 +110,9 @@ namespace NzbDrone.Core.Indexers
                                      Settings = indexer.Settings.ToJson()
                                  };
 
+            var instance = ToIndexer(definition).Instance;
+            _newznabTestService.Test(instance);
+
             definition = _indexerRepository.Insert(definition);
             indexer.Id = definition.Id;
 
diff --git a/NzbDrone.Core/Indexers/Newznab/Newznab.cs b/NzbDrone.Core/Indexers/Newznab/Newznab.cs
index 4341c22f7..8a13d2282 100644
--- a/NzbDrone.Core/Indexers/Newznab/Newznab.cs
+++ b/NzbDrone.Core/Indexers/Newznab/Newznab.cs
@@ -114,7 +114,6 @@ namespace NzbDrone.Core.Indexers.Newznab
             return RecentFeed.Select(url => String.Format("{0}&limit=100&q={1}&season={2}&offset={3}", url, NewsnabifyTitle(seriesTitle), seasonNumber, offset));
         }
 
-
         public override string Name
         {
             get
@@ -131,7 +130,6 @@ namespace NzbDrone.Core.Indexers.Newznab
             }
         }
 
-
         private static string NewsnabifyTitle(string title)
         {
             return title.Replace("+", "%20");
diff --git a/NzbDrone.Core/Indexers/NewznabTestService.cs b/NzbDrone.Core/Indexers/NewznabTestService.cs
new file mode 100644
index 000000000..dd5fea38c
--- /dev/null
+++ b/NzbDrone.Core/Indexers/NewznabTestService.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using FluentValidation;
+using FluentValidation.Results;
+using NLog;
+using NzbDrone.Common;
+
+namespace NzbDrone.Core.Indexers
+{
+    public interface INewznabTestService
+    {
+        void Test(IIndexer indexer);
+    }
+
+    public class NewznabTestService : INewznabTestService
+    {
+        private readonly IFetchFeedFromIndexers _feedFetcher;
+        private readonly IHttpProvider _httpProvider;
+        private readonly Logger _logger;
+
+        public NewznabTestService(IFetchFeedFromIndexers feedFetcher, IHttpProvider httpProvider, Logger logger)
+        {
+            _feedFetcher = feedFetcher;
+            _httpProvider = httpProvider;
+            _logger = logger;
+        }
+
+        public void Test(IIndexer indexer)
+        {
+            var releases = _feedFetcher.FetchRss(indexer);
+
+            if (releases.Any()) return;
+
+            try
+            {
+                _httpProvider.DownloadString(indexer.RecentFeed.First());
+            }
+
+            catch (Exception)
+            {
+                _logger.Warn("No result returned from RSS Feed, please confirm you're using a newznab indexer");
+
+                var failure = new ValidationFailure("Url", "Invalid Newznab URL entered");
+                throw new ValidationException(new List<ValidationFailure> { failure }.ToArray());
+            }
+
+            _logger.Warn("Indexer returned result for Newznab RSS URL, API Key appears to be invalid");
+
+            var apiKeyFailure = new ValidationFailure("ApiKey", "Invalid API Key");
+            throw new ValidationException(new List<ValidationFailure> { apiKeyFailure }.ToArray());
+        }
+    }
+}
diff --git a/NzbDrone.Core/NzbDrone.Core.csproj b/NzbDrone.Core/NzbDrone.Core.csproj
index 08803f3fa..205b6c817 100644
--- a/NzbDrone.Core/NzbDrone.Core.csproj
+++ b/NzbDrone.Core/NzbDrone.Core.csproj
@@ -238,6 +238,7 @@
     <Compile Include="Indexers\FetchAndParseRssService.cs" />
     <Compile Include="Indexers\IIndexer.cs" />
     <Compile Include="Indexers\IndexerSettingUpdatedEvent.cs" />
+    <Compile Include="Indexers\NewznabTestService.cs" />
     <Compile Include="Indexers\IndexerWithSetting.cs" />
     <Compile Include="Indexers\IParseFeed.cs" />
     <Compile Include="Indexers\Newznab\SizeParsingException.cs" />
diff --git a/UI/Settings/Indexers/EditTemplate.html b/UI/Settings/Indexers/EditTemplate.html
index e433b1a29..f9c3779ca 100644
--- a/UI/Settings/Indexers/EditTemplate.html
+++ b/UI/Settings/Indexers/EditTemplate.html
@@ -39,6 +39,9 @@
     {{#if id}}
         <button class="btn btn-danger pull-left x-remove">delete</button>
     {{/if}}
+
+    <span class="x-activity"></span>
+
     <button class="btn" data-dismiss="modal">cancel</button>
 
     <div class="btn-group">
diff --git a/UI/Settings/Indexers/EditView.js b/UI/Settings/Indexers/EditView.js
index 1d49366cb..0e4f227f2 100644
--- a/UI/Settings/Indexers/EditView.js
+++ b/UI/Settings/Indexers/EditView.js
@@ -11,6 +11,10 @@ define(
         var view = Marionette.ItemView.extend({
             template: 'Settings/Indexers/EditTemplate',
 
+            ui : {
+                activity: '.x-activity'
+            },
+
             events: {
                 'click .x-save'        : '_save',
                 'click .x-save-and-add': '_saveAndAdd'
@@ -21,6 +25,8 @@ define(
             },
 
             _save: function () {
+                this.ui.activity.html('<i class="icon-nd-spinner"></i>');
+
                 var self = this;
                 var promise = this.model.saveSettings();
 
@@ -29,10 +35,16 @@ define(
                         self.indexerCollection.add(self.model, { merge: true });
                         App.vent.trigger(App.Commands.CloseModalCommand);
                     });
+
+                    promise.always(function () {
+                        self.ui.activity.empty();
+                    });
                 }
             },
 
             _saveAndAdd: function () {
+                this.ui.activity.html('<i class="icon-nd-spinner"></i>');
+
                 var self = this;
                 var promise = this.model.saveSettings();
 
@@ -50,6 +62,10 @@ define(
                             self.model.set('fields.' + key + '.value', '');
                         });
                     });
+
+                    promise.always(function () {
+                        self.ui.activity.empty();
+                    });
                 }
             }
         });