Twitter widget is not loaded at the bottom of http://nerds-net.com/
I put it on my website as
<a class="twitter-timeline" href="https://twitter.com/nerds_net" data-widget-id="650756803756752896">Tweets by @nerds_net</a>
<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+"://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>
but nothing happens except of “Tweets by @nerds_net” text 
