atakanozbancom/App_Start/RouteConfig.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;

namespace atakanozbancom
{
    public class RouteConfig
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            // Keep old /affiliate URLs working
            routes.MapRoute(
                name: "AffiliateRedirect",
                url: "affiliate/{action}/{id}",
                defaults: new { controller = "support", action = "Index", id = UrlParameter.Optional },
                new[] { "atakanozbancom.Controllers" }
            );

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "main", action = "Index", id = UrlParameter.Optional },
                new[] { "atakanozbancom.Controllers" }
            );

        }
    }
}