Dreams of a host symbolize leadership, power and maturity. You are claiming responsibility for all the various aspects of yourself; integrating and shepherding yourself into synergy.
If you dream of a website host, then this is about being on a similar wave length with someone, sharing energy, power and resources.
[1]A hostess or host (such as at a restaurant or party) can represent: Managing, coordinating, or welcoming (or a person who does these things).
Directing or providing guidance.
Hospitality.
Representing a group.
See Also: Invitation, Party, Restaurant, Server, Crowd, Flow or River
[2]