Disqus integration for Craft CMS. More info: http://craftsnippets.com/articles/adding-disqus-comments-to-craft-cms-website

disqus.twig

{% set shortname = 'YOUR_WEBSITE_SHORTNAME' %}
{% if entry is defined %}
    <div id="disqus_thread"></div>
    <script>
    var disqus_config = function () {
    this.page.url = '{{entry.url}}';  
    this.page.identifier = '{{entry.id}}'; 
    this.page.title = '{{entry.title}}';
    };
    (function() { // DON'T EDIT BELOW THIS LINE
    var d = document, s = d.createElement('script');
    s.src = 'https://{{shortname}}.disqus.com/embed.js';
    s.setAttribute('data-timestamp', +new Date());
    (d.head || d.body).appendChild(s);
    })();
    </script>
    <noscript>{{'Please enable JavaScript to view the comments.'|t}}</noscript>
{% endif %}