diff --git a/src/TechCommunityCalendar.Solution/TechCommunityCalendar.CoreWebApplication/Controllers/AddEventController.cs b/src/TechCommunityCalendar.Solution/TechCommunityCalendar.CoreWebApplication/Controllers/AddEventController.cs
index f7e95f5..ce8ea24 100644
--- a/src/TechCommunityCalendar.Solution/TechCommunityCalendar.CoreWebApplication/Controllers/AddEventController.cs
+++ b/src/TechCommunityCalendar.Solution/TechCommunityCalendar.CoreWebApplication/Controllers/AddEventController.cs
@@ -96,6 +96,20 @@ public async Task<IActionResult> IndexAsync(AddEventViewModel model)
                 }
             }
 
+            
+            // Check if model.Url is a valid URL
+            if (!string.IsNullOrWhiteSpace(model.Url))
+            {
+                if (!model.Url.StartsWith("http://") && !model.Url.StartsWith("https://"))
+                {
+                    model.Url = "https://" + model.Url;
+                }
+                if (!Uri.IsWellFormedUriString(model.Url, UriKind.Absolute))
+                {
+                    ModelState.AddModelError("Url", "Invalid URL");
+                }
+            }
+
             if (!ModelState.IsValid)
                 return View(model);
 
diff --git a/src/TechCommunityCalendar.Solution/TechCommunityCalendar.CoreWebApplication/Views/Admin/Index.cshtml b/src/TechCommunityCalendar.Solution/TechCommunityCalendar.CoreWebApplication/Views/Admin/Index.cshtml
index ef9e858..54f17a4 100644
--- a/src/TechCommunityCalendar.Solution/TechCommunityCalendar.CoreWebApplication/Views/Admin/Index.cshtml
+++ b/src/TechCommunityCalendar.Solution/TechCommunityCalendar.CoreWebApplication/Views/Admin/Index.cshtml
@@ -1,12 +1,20 @@
 @using System.Web;
+@using System.Text.Unicode
 @model AdminEventsViewModel
 
+@functions {
+    public static string EncodeUrl(string value)
+    {
+        return HttpUtility.UrlEncode(value);
+    }
+}
+
 <h3>Hidden</h3>
 <table class="table table-bordered">
     @foreach (var techEvent in Model.TechEvents.Where(x => x.Hidden))
     {
         <tr>
-            <td><a href="@techEvent.Url">@techEvent.Name</a></td>
+            <td><a href="@EncodeUrl(techEvent.Url)" target="_blank">@techEvent.Name</a></td>
             <td>@techEvent.EventType</td>
             <td>@techEvent.Duration</td>
             <td>@techEvent.StartDate.ToShortDateString()</td>
@@ -22,7 +30,7 @@
     @foreach (var techEvent in Model.TechEvents.Where(x => !x.Hidden))
     {
         <tr>
-            <td><a href="@techEvent.Url">@techEvent.Name</a></td>
+            <td><a href="@EncodeUrl(techEvent.Url)" target="_blank">@techEvent.Name</a></td>
             <td>@techEvent.EventType</td>
             <td>@techEvent.Duration</td>
             <td>@techEvent.StartDate.ToShortDateString()</td>