diff --git a/app/views/welcome/robots.html.erb b/app/views/welcome/robots.html.erb
index a55f4da1..052c639e 100644
--- a/app/views/welcome/robots.html.erb
+++ b/app/views/welcome/robots.html.erb
@@ -2,7 +2,10 @@
 # by trustie team
 #
 User-agent: *
+Disallow: /projects/*
+Disallow: /users/*
+Disallow: /course/*
+Disallow: /contests/*
 <% @projects.each do |p| -%>
 Disallow: /projects/<%= p.to_param %>/repository
 <% end -%>
-Disallow: /admin/