Is adding Disqus to a website safe for user privacy?
Should I trust to Disqus if I want to keep my visitors calm?
One thing that you might want to look into is the EU Cookies Directive. The directive requires notification to EU users about usage of cookies on a website. There are some differences across EU countries on notification and consent.
Below is a list of websites, that track your visitors activity when you choose to use Disqus:
google-analytics.com connect.facebook.net accounts.google.com pippio.com bluekai.com crwdcntrl.net exelator.com doubleclick.net tag.apxlv.net adnxs.com rlcdn.com adbrn.com nexac.com tapad.com liadm.com sohern.com demdex.net bidswitch.net mathtag.com