diff --git a/app/views/posts/index.haml b/app/views/posts/index.haml
index 1425a12..48c1d24 100644
--- a/app/views/posts/index.haml
+++ b/app/views/posts/index.haml
@@ -20,7 +20,7 @@
       = link_to t('sites.edit.btn', site: @site.title), edit_site_path(@site), class: 'btn'
 
     - if policy(@site).private?
-      = link_to t('sites.private'), '../private/' + @site.name, class: 'btn', target: '_blank'
+      = link_to t('sites.private'), '../private/' + @site.name, class: 'btn', target: '_blank', rel: 'noopener'
 
     = render 'sites/build', site: @site
 
diff --git a/app/views/posts/show.haml b/app/views/posts/show.haml
index 77b38d4..52069a0 100644
--- a/app/views/posts/show.haml
+++ b/app/views/posts/show.haml
@@ -13,7 +13,9 @@
         class: 'btn btn-block'
       = link_to t('posts.preview'),
         site_post_preview_path(@site, @post.id),
-        class: 'btn btn-block'
+        class: 'btn btn-block',
+        target: '_blank',
+        rel: 'noopener'
 
       %table.table.table-condensed
         %thead