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Communications protocol
OSI layer Application
Port(s) 80, 443
RFC(s) RFC 6352

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.

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]



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



The following products implement the server-side portion of the CardDAV protocol:


The following products implement the client-side portion of the CardDAV protocol:

See also[edit]


  1. ^ "CardDAVResources". CalConnect. Retrieved April 10, 2010. 
  2. ^ "CardDAV: Related Standards". CalConnect. Retrieved April 11, 2010. 
  3. ^ a b "Implementations: CardDAV Servers". CalConnect. Retrieved April 10, 2010. 
  4. ^ "Mac OS X Server: Address Book Server". Apple. Retrieved April 10, 2010. 
  5. ^ "CommuniGate Pro support of CardDav". Retrieved April 21, 2011. 
  6. ^ "DAViCal release". Freshmeat. Retrieved September 24, 2010. 
  7. ^ Ellingson, Jeff (September 27, 2012). "A new way to sync Google Contacts". Google. Retrieved September 27, 2012. 
  8. ^ Horde Groupware
  9. ^ "Meishi". GitHub. Retrieved March 30, 2012. 
  10. ^ "SabreDAV 1.5 released with CardDAV support". dmfs. Archived from the original on September 26, 2011. Retrieved September 11, 2011. 
  11. ^ "SOGo: Features". Inverse Inc. Archived from the original on 2013-03-05. 
  12. ^ Yoon Lee, Jong (September 25, 2009). "Zimbra Server: CardDAV server". Zimbra/VMWare Inc. Retrieved April 24, 2010. 
  13. ^ AEM (September 2014). "Synology DSM: CardDAV server". SYNOLOGY. 
  14. ^ "Xandikos: DAV Compliance". 
  15. ^ "Implementations: CardDAV Clients". CalConnect. Retrieved April 10, 2010. 
  16. ^ Eran Dilger, Daniel (June 25, 2010). "iPhone 4 and iOS vs. Android: desktop and cloud services". AppleInsider. Retrieved July 24, 2010. 
  17. ^ "CalDAV/CardDAV for Android". Retrieved August 5, 2017. 
  18. ^ Koenig, Tobias (February 4, 2010). "CalDAV/CardDAV/GroupDAV Support for Akonadi". Blogspot. Retrieved April 24, 2010. 
  19. ^ "Kerio Connect". Kerio Technologies. Retrieved April 10, 2010. 
  20. ^ "Outlook CalDav Synchronizer". Retrieved April 18, 2017. 
  21. ^ "SOGo: Frontends". Inverse Inc. April 17, 2013. Archived from the original on October 5, 2013. Retrieved October 4, 2013. 
  22. ^ "CardBook :: Add-ons for Thunderbird". Retrieved June 30, 2016. 

External links[edit]


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