Outbound connections are joins that are intended to take you somewhere else. These are joins that will guide you to another particular site page or site by and large. Most, if not all, sites have outbound connections.
Outgoing links are also harder to manipulate, so they are one of the best ways for search engines to determine the popularity and relevance of a particular website or page. There are two kinds of outbound links: nofollow and dofollow.