This plugin hasn’t been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.



evercookie produces extremely persistent cookies in a browser. Its goal is to identify a client even after they’ve removed standard cookies, Flash cookies (Local Shared Objects or LSOs), and others.

evercookie accomplishes this by storing the cookie data in several types of storage mechanisms that are available on the local browser. Additionally, if evercookie has found the user has removed any of the types of cookies in question, it recreates them using each mechanism available.

Specifically, when creating a new cookie, it uses the following storage mechanisms when available:

  • Standard HTTP Cookies

  • Local Shared Objects (Flash Cookies)

  • Silverlight Isolated Storage

  • Storing cookies in RGB values of auto-generated, force-cached PNGs using HTML5 Canvas tag to read pixels (cookies) back out

  • Storing cookies in Web History

  • Storing cookies in HTTP ETags

  • Storing cookies in Web cache

  • caching

  • Internet Explorer userData storage

  • HTML5 Session Storage

  • HTML5 Local Storage

  • HTML5 Global Storage

  • HTML5 Database Storage via SQLite

The WordPress plugin “evercookie” is based on Samy’s original Evercookie from


  • (screenshot-1.png) Single Entry on fresh installed Evercookie plugin
  • (screenshot-2.png) Many Entry's of different users


  1. Upload the Folder evercookie to the /wp-content/plugins/ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress


Did a User need Javascript?

Yes he need it, because Evercookie only works with it.


Sehr gutes PlugIn

Arbeitet reibungslos und ohne Probleme. Das PlugIn ist Ressourcen schonend und vor allem sehr genau und auch sehr gut programmiert. Sehr gute Arbeit Ilja. zum Einsatz kommt es auf und wird demnächst noch auf eingesetzt.

cpacibo ilja…:)


Read all 1 review

Contributors & Developers

“Evercookie” is open source software. The following people have contributed to this plugin.

Translate “Evercookie” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.


  • Added jsDelivr as CDN for Javascript files on 10.11.2013
  • Added Numeric Pagination on 31.10.2013
  • Changed Referer-Tracking to coming back Visitors with multiple Link support on 31.10.2013
  • Added Flags for Countrys on 31.10.2013
  • Added RIPE-Whois-Lookup for IPv4-Addresses on 30.10.2013
  • Added Referer-Support to the Plugin on 30.10.2013
  • Bugfixes (Pagination) on 27.10.2013
  • Added Pagination on 27.10.2013
  • Added Last Visit (Monthly) line-diagram on 04.07.2013
  • Added Update Method for Visitors who come back with known ip-address (Timestamp) on 25.04.2013
  • Plugin created on 23.04.2013