// select multi route for this action
[Route("/article/archive")]
[Route("/article")]
[...]
[HttpGet]
public ActionResult Index()
{
    var isArchive = false;
   
    // determine whether desired route chosen?
    var url = this.Request.Url;
    if (url != null)
    {
         // is this URL Archive?
         isArchive = url.AbsolutePath== "/article/archive";
     }
}