app/views/layouts/_ad-responsive.html.erb
<% if false && Rails.env == 'production' && request.host != 'bestofama.herokuapp.com' %>
<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<ins class="adsbygoogle" style="display:inline-block" data-ad-client="ca-pub-7202121084370254" data-ad-slot="7624690465"></ins>
<script>(adsbygoogle = window.adsbygoogle || []).push({});</script>
<% else %>
<img class="placeholder">
<% end %>