X3 CMS Link Requirement Licence
X3 CMS - a smart Content Management System
This License is identical with GPL3 with that exception, that it grants you the right to replace the link to the X3 CMS Legal Notices facility with a link to www.x3cms.net.
The link to www.x3cms.net must be static, visible and readable with a hyperlinked text or an image stating "Powered by X3 CMS". This link must be on every generated page (best practice: Place it in the template) except in a print facility.
This also applies testing purposes and setup at an intranet or internal network.