Caching plays a major role in developing highly scalable web applications. We can cache any http get request in the user browser for a predefined time, if the user request the same URL in that predefined time the response will be loaded from the browser cache instead of the server. You can archive the same in ASP.NET MVC application with the following action filter:
using System;
using System.Web;
using System.Web.Mvc;

public class CacheFilterAttribute : ActionFilterAttribute
{
    /// <summary>
    /// Gets or sets the cache duration in seconds. The default is 10 seconds.
    /// </summary>
    /// <value>The cache duration in seconds.</value>
    public int Duration
    {
        get;
        set;
    }

    public CacheFilterAttribute()
    {
        Duration = 10;
    }

    public override void OnActionExecuted(FilterExecutedContext filterContext)
    {
        if (Duration <= 0) return;

        HttpCachePolicyBase cache = filterContext.HttpContext.Response.Cache;
        TimeSpan cacheDuration = TimeSpan.FromSeconds(Duration);

        cache.SetCacheability(HttpCacheability.Public);
        cache.SetExpires(DateTime.Now.Add(cacheDuration));
        cache.SetMaxAge(cacheDuration);
        cache.AppendCacheExtension("must-revalidate, proxy-revalidate");
    }
}
You can apply the filter in your Controller action method like the following.
[CacheFilter(Duration = 60)]
public void Category(string name, int? page)
The following shows the screen-shot in firebug  when cache filter is not applied: