diff --git a/src/Geta.NotFoundHandler.Admin/Areas/GetaNotFoundHandlerAdmin/Pages/Models/RedirectModel.cs b/src/Geta.NotFoundHandler.Admin/Areas/GetaNotFoundHandlerAdmin/Pages/Models/RedirectModel.cs
index 229097e..d3aff9d 100644
--- a/src/Geta.NotFoundHandler.Admin/Areas/GetaNotFoundHandlerAdmin/Pages/Models/RedirectModel.cs
+++ b/src/Geta.NotFoundHandler.Admin/Areas/GetaNotFoundHandlerAdmin/Pages/Models/RedirectModel.cs
@@ -1,17 +1,35 @@
 using System;
+using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
 using Geta.NotFoundHandler.Core.Redirects;
 
 namespace Geta.NotFoundHandler.Admin.Pages.Geta.NotFoundHandler.Admin.Models
 {
-    public class RedirectModel
+    public class RedirectModel : IValidatableObject
     {
         public Guid? Id { get; set; }
+        
         [Required]
         public string OldUrl { get; set; }
+        
         [Required]
         public string NewUrl { get; set; }
+        
         public bool WildCardSkipAppend { get; set; }
+        
         public RedirectType RedirectType { get; set; }
+
+        public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
+        {
+            if (!Uri.IsWellFormedUriString(OldUrl, UriKind.RelativeOrAbsolute))
+            {
+                yield return new ValidationResult("Old Url must be a valid absolute or relative url.", new[] { nameof(OldUrl) });
+            }
+
+            if (!Uri.IsWellFormedUriString(NewUrl, UriKind.RelativeOrAbsolute))
+            {
+                yield return new ValidationResult("New Url must be a valid absolute or relative url.", new[] { nameof(NewUrl) });
+            }
+        }
     }
 }
diff --git a/src/Geta.NotFoundHandler/Core/Redirects/RedirectsCsvParser.cs b/src/Geta.NotFoundHandler/Core/Redirects/RedirectsCsvParser.cs
index 299b34d..e33090d 100644
--- a/src/Geta.NotFoundHandler/Core/Redirects/RedirectsCsvParser.cs
+++ b/src/Geta.NotFoundHandler/Core/Redirects/RedirectsCsvParser.cs
@@ -46,6 +46,12 @@ private CustomRedirectCollection Load(IEnumerable<CsvImportModel> csvImportModel
 
         foreach (var item in csvImportModels)
         {
+            if (!IsValidRedirect(item))
+            {
+                _logger.LogWarning("NotFoundHandler: Skipping import of invalid redirect. OldUrl: {oldUrl}; NewUrl: {newUrl}", item.OldUrl, item.NewUrl);
+                continue;
+            }
+
             // Create new custom redirect nodes
             var redirectType = GetRedirectType(item.RedirectType);
             var skipWildCardAppend = GetSkipWildCardAppend(item.WildcardSkippedAppend);
@@ -56,6 +62,12 @@ private CustomRedirectCollection Load(IEnumerable<CsvImportModel> csvImportModel
         return redirects;
     }
 
+    private static bool IsValidRedirect(CsvImportModel model)
+    {
+        return Uri.IsWellFormedUriString(model.OldUrl, UriKind.RelativeOrAbsolute)
+            && Uri.IsWellFormedUriString(model.NewUrl, UriKind.RelativeOrAbsolute);
+    }
+
     private static bool GetSkipWildCardAppend(string skipWildCardAttr)
     {
         if (!string.IsNullOrWhiteSpace(skipWildCardAttr) && bool.TryParse(skipWildCardAttr, out var skipWildCardAppend))