Third party application communication api

A method for a website building system, the method comprising:

• in a page of a website built by said website building system, implementing, 2-way cross domain communication with direct addressing between at least two third party applications from different vendors, said at least two third party applications each having an instance within said page wherein said implementing comprises:
• identifying and providing said direct addressing of source or target third party applications between said at least two third party applications and maintaining a table of all absolute addresses for said 2-way cross domain communication;
• and
• enforcing a communication policy between said website building system and said at least two third party applications to filter non-conforming communication according to said communication policy;
• and
• providing a 2-way interface translation between said at least two third party applications.

A device for a website building system, the device comprising:

• a communication hub embedded in a page of a website built by said website building system to implement 2-way cross domain communication with direct addressing between at least two third party applications from different vendors, said at least two third party applications each having an instance within said page, wherein said communication hub comprises:
• a redirector to allow a user of said website building system to reroute communication messages between said page of said website and one of said at least two third party applications when another of said at least two third party applications is unavailable;
• and
• an originator verifier to use a unique originator ID to verify the authenticity of incoming messages from said at least two third party applications to stop hostile third party applications;
• and
• a protocol translator to provide 2-way interface translation between said at least two third party applications.