Question

Why there are so many ways to select an action method in ASP.NET MVC and how I avoid this? I mean, I can go to Index action method from /, /Home, /Home/Index. I think it will affect SEO ranking.

Answer 1

Quoting the answer from this site,

public class RemoveDuplicateContentAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        var routes = RouteTable.Routes;
        var requestContext = filterContext.RequestContext;
        var routeData =requestContext.RouteData;
        var dataTokens = routeData.DataTokens;
        if (dataTokens["area"] == null)
            dataTokens.Add("area", "");
        var vpd = routes.GetVirtualPathForArea(requestContext, routeData.Values);
        if (vpd != null)
        {
            var virtualPath = vpd.VirtualPath.ToLower();
            var request = requestContext.HttpContext.Request;
            if (!string.Equals(virtualPath, request.Path))
            {
                filterContext.Result = new RedirectResult(virtualPath + request.Url.Query, true);
            }
        }
        base.OnActionExecuting(filterContext);
    }
}