Web host

From eg

A typical web host provides a long list of features or services to the domain holder. Using one host for all services including the email host and wiki host is increasingly considered a best practice.

For instance, a well run wiki relies on a web host to provide logins and so on = one way to align web and wiki so that two competing access control regimes don't develop.

An open configuration effort makes it easier to shift from one web host to another. An ideal open host facilitates such shifts and presents no technical barriers nor any contract barriers to anyone wishing to change service providers.