CardDAV

vCard Extensions to WebDAV (CardDAV) is an address book client/server protocol designed to allow users to access and share contact data on a server.

CardDAV
Communication protocol
OSI layerApplication
Port(s)80, 443
RFC(s)RFC 6352

The CardDAV protocol was developed by the IETF and was published as RFC 6352 in August 2011.[1] CardDAV is based on WebDAV, which is based on HTTP, and it uses vCard for contact data.[2]

History

CardDAV was proposed as an open standard for contact management in August 2011. It became known as a synchronization protocol in iOS 7, among other things, and is now also supported by Gmail, where it replaces the no longer supported (by Google) ActiveSync standard.

In October 2013, the standard received an update that made it possible to capture higher-resolution contact images and achieve lower data consumption.[3]

Specification

The specification has been proposed as a standard by IETF as the RFC 6352 in August 2011 by C. Daboo from Apple Inc.

See also

References
  1. "CardDAVResources". CalConnect. Archived from the original on 2010-04-02. Retrieved April 10, 2010.
  2. "CardDAV: Related Standards". CalConnect. Archived from the original on 2010-04-02. Retrieved April 11, 2010.
  3. "Google updates CardDAV API". TheNextWeb. 22 October 2013. Retrieved October 22, 2013.
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