diff --git a/src/SwiftLink.Application/Resources/ApplicationMessage.cs b/src/SwiftLink.Application/Constants/Constants.cs
similarity index 56%
rename from src/SwiftLink.Application/Resources/ApplicationMessage.cs
rename to src/SwiftLink.Application/Constants/Constants.cs
index 7369b19..8ca0207 100644
--- a/src/SwiftLink.Application/Resources/ApplicationMessage.cs
+++ b/src/SwiftLink.Application/Constants/Constants.cs
@@ -1,6 +1,6 @@
-namespace SwiftLink.Application.Resources;
+namespace SwiftLink.Application;
 
-public static class ApplicationMessage
+internal static class Constants
 {
     public static class Link
     {
diff --git a/src/SwiftLink.Presentation/Constants/Constants.cs b/src/SwiftLink.Presentation/Constants/Constants.cs
new file mode 100644
index 0000000..9d0a811
--- /dev/null
+++ b/src/SwiftLink.Presentation/Constants/Constants.cs
@@ -0,0 +1,9 @@
+namespace SwiftLink.Presentation;
+
+internal static class Constants
+{
+    public static class EndPointFilterMessages
+    {
+        public const string InvalidUrl = "Url is not valid! :(";
+    }
+}
diff --git a/src/SwiftLink.Presentation/Controllers/LinkController.cs b/src/SwiftLink.Presentation/Controllers/LinkController.cs
index 817ca6c..586f998 100644
--- a/src/SwiftLink.Presentation/Controllers/LinkController.cs
+++ b/src/SwiftLink.Presentation/Controllers/LinkController.cs
@@ -1,6 +1,7 @@
 using Asp.Versioning;
 using Microsoft.AspNetCore.Mvc;
 using SwiftLink.Application.UseCases.Links.GenerateCommand;
+using SwiftLink.Presentation.Filters;
 
 namespace SwiftLink.Presentation.Controllers;
 
@@ -8,7 +9,8 @@ namespace SwiftLink.Presentation.Controllers;
 public class LinkController : BaseController
 {
     [HttpPost]
-    public IActionResult Generate([FromBody] GenerateShortCodeCommand command)
+    [ShortenEndpointFilter]
+    public IActionResult Shorten([FromBody] GenerateShortCodeCommand command)
     {
         return Ok(MediatR.Send(command));
     }
diff --git a/src/SwiftLink.Presentation/Filters/ShortenEndpointFilter.cs b/src/SwiftLink.Presentation/Filters/ShortenEndpointFilter.cs
new file mode 100644
index 0000000..2cc31fe
--- /dev/null
+++ b/src/SwiftLink.Presentation/Filters/ShortenEndpointFilter.cs
@@ -0,0 +1,21 @@
+using Microsoft.AspNetCore.Mvc.Filters;
+using SwiftLink.Application.UseCases.Links.GenerateCommand;
+using System.Text.RegularExpressions;
+
+namespace SwiftLink.Presentation.Filters;
+
+public partial class ShortenEndpointFilter : ActionFilterAttribute
+{
+    private const int _urlArgumentIndex = 0;
+    private const string _pattern = @"^(?:(?:https?|ftp)://)?[^\s/$.?#].[^\s]*$";
+
+    public override void OnActionExecuting(ActionExecutingContext context)
+    {
+    }
+ 
+    private static bool IsValidUrl(string url)
+        => ShortCodeRegex().IsMatch(url);
+
+    [GeneratedRegex(_pattern, RegexOptions.IgnoreCase, "en-US")]
+    private static partial Regex ShortCodeRegex();
+}
\ No newline at end of file
diff --git a/src/SwiftLink.Presentation/Program.cs b/src/SwiftLink.Presentation/Program.cs
index 78cd9e3..3a4495d 100644
--- a/src/SwiftLink.Presentation/Program.cs
+++ b/src/SwiftLink.Presentation/Program.cs
@@ -3,6 +3,7 @@
 using SwiftLink.Application;
 using SwiftLink.Infrastructure;
 using SwiftLink.Shared;
+using SwiftLink.Shared.Constants;
 
 var builder = WebApplication.CreateBuilder(args);
 {
diff --git a/src/SwiftLink.Shared/Error.cs b/src/SwiftLink.Shared/Constants/Constants.cs
similarity index 84%
rename from src/SwiftLink.Shared/Error.cs
rename to src/SwiftLink.Shared/Constants/Constants.cs
index ec10752..4d662a6 100644
--- a/src/SwiftLink.Shared/Error.cs
+++ b/src/SwiftLink.Shared/Constants/Constants.cs
@@ -1,5 +1,5 @@
 namespace SwiftLink.Shared;
-public class Error
+public class Constants
 {
     public static string DefaultMessage = "عملیات با خطا مواجه شد";
 }