Custom links to external services in JIRA task description?

When I link to a JIRA task inside a JIRA description, I get a nicely rendered box, like below. As an add-on developer, is it possible to render a custom preview for links to my application?

For example, if I have an app called Couch Potato, hosted on www.couchpotato.com, I want a link like www.couchpotato.com/file/akflds to have a custom preview in JIRA when my add on is installed.