Virtual Happy Hour this month, Jun 28, we'll be getting a sneak preview at our soon to launch SaaS CMS!

Try our conversational search powered by Generative AI!

Apr 27, 2015
(4 votes)

Simple robots.txt built with mvc

The other day there was a question about serving static files from episerver, like a robots.txt. Since most editor like to be able to update the robots.txt them self many of us has build solutions for that. There are also some packages in the nuget feed from EPiServer that will help you do just that.

But if you are like me, I do not like to have pre-compiled solutions from other companies in my project, some are better then others but still I like to be able to change most of my code in a project. Of course you can download the source code in many of those packages but some times they tend to do a bit more then you might expected as well.


In this case I just would like to serve a robots.txt if it is requested by a search engine for instance.


First I create the robots.txt controller. Since we are working with EPiServer CMS I have added a textarea on the startpage type and therefore editors are able to change the content of the file.


   1:      public class RobotsTxtController : Controller
   2:      {
   3:          private Injected<IContentLoader> ContentLoader { get; set; }
   5:          [ContentOutputCache]
   6:          public ActionResult Index()
   7:          {
   8:              var startPage = ContentLoader.Service.Get<StartPage>(ContentReference.StartPage);
  10:              string content = startPage.RobotsTxtContent;
  11:              return Content(content, "text/plain");
  12:          }
  13:      }


Nesx step is to create an initialization module were we map a route to our robots.txt file.


   1:      [InitializableModule]
   2:      [ModuleDependency(typeof(EPiServer.Web.InitializationModule))]
   3:      public class RenderingInitialization : IInitializableModule
   4:      {
   5:          public void Initialize(InitializationEngine context)
   6:          {
   8:              //Maps route for robots.txt
   9:              RouteTable.Routes.MapRoute("RobotsTxtRoute", "robots.txt", new { controller = "RobotsTxt", action = "Index" });
  10:          }
  13:          public void Preload(string[] parameters) { }
  15:          public void Uninitialize(InitializationEngine context)
  16:          {
  17:              //Add uninitialization logic
  19:          }
  20:      }


And finally we add the property to our startpage model

        [Display(Name = "Robots.txt", Order = 90, GroupName = Global.GroupNames.SiteSettings)]
        public virtual string RobotsTxtContent { get; set; }
Apr 27, 2015


Marija Jemuovic
Marija Jemuovic Apr 27, 2015 09:57 AM

Nice idea!

Eric Apr 27, 2015 04:26 PM


valdis Apr 28, 2015 12:30 PM

No offense, just wanted to know reason using Injected..? :)

Vincent Apr 29, 2015 06:57 AM

To Valdis

Is it used for querying the pagedata from startpage reference?

Feb 14, 2017 06:01 PM

Thanks Eric, nice & simple => a perfect solution.

Eric Feb 15, 2017 09:02 AM

Happy you like it :) 

Please login to comment.
Latest blogs
Remove a segment from the URL in CMS 12

Problem : I have created thousands of pages dynamically using schedule jobs with different templates (e.g. one column, two columns, etc..) and stor...

Sanjay Kumar | Jun 21, 2024

Copying property values part 2

After publishing my last article about copying property values to other language versions, I received constructive feedback on how could I change t...

Grzegorz Wiecheć | Jun 18, 2024 | Syndicated blog

Enhancing online shopping through Optimizely's personalized product recommendations

In this blog, I have summarized my experience of using and learning product recommendation feature of Optimizely Personalization Artificial...

Hetaxi | Jun 18, 2024

New Series: Building a .NET Core headless site on Optimizely Graph and SaaS CMS

Welcome to this new multi-post series where you can follow along as I indulge in yet another crazy experiment: Can we make our beloved Alloy site r...

Allan Thraen | Jun 14, 2024 | Syndicated blog