     success: (articles) ->
       recentArticles = articles.filter (article) ->
         moment(article.get 'published_at').isAfter(moment().subtract(2, 'days'))
-      res.set('Content-Type', 'text/xml')
+      res.set({
+        'Content-Type': 'text/xml',
+        'X-Robots-Tag': 'noindex'
+      })
       res.render('news_sitemap', { pretty: true, articles: recentArticles })
 
 @imagesIndex = (req, res, next) ->
   getArtworkBuckets (err, artworkBuckets) ->
     return next err if err
-    res.set('Content-Type', 'text/xml')
+    res.set({
+      'Content-Type': 'text/xml',
+      'X-Robots-Tag': 'noindex'
+    })
     res.render('images_index', { pretty: true, artworkBuckets: artworkBuckets })
 
 @index = (req, res, next) ->

    .end (err, sres) ->
      return next err if err
      slugs = _.pluck(sres.body.results, 'slug')
      res.set('Content-Type', 'text/xml')
      res.render('articles', pretty: true, slugs: slugs)

@resourcePage = (req, res, next) ->

        cb null, allPages
  ], (err, [artworkBuckets, articlePages, allPages]) ->
    return next(err) if err
    res.set({
      'Content-Type': 'text/xml',
      'X-Robots-Tag': 'noindex'
    })
    res.render('index', {
      pretty: true
      artworkBuckets: artworkBuckets
