Does Intense Debate query my database?

I'm thinking about implementing Intense Debate in my Wordpress site. I know that ID stores comments in its own database and in the wordpress database.

I haven't understood if this software query m开发者_StackOverflow中文版y database for comments when a page are requested or if it query his own system. In the second case I could have some benefits on the server-load size of my website...

I've contacted the Intense Debate support and they answered me. Intense Debate queries only IB database so your database will not be touched ;)