On each save of a component validation is performed. Menu links to pages are always synchronized.
External links (not under the control of the CMS) are scanned using http://validator.w3.org/
By setting a future date as the published time the article will not be published until that time.
We have 3 status: Published, Offline, and A previous version is live for articles and sites
And 4 status: Published, Offline, Publish Scheduled and Offline Scheduled for pages