LiveAgent uses cookies, (small pieces of data stored in your web browser) for several purposes.

For an agent logged into the LiveAgent agent panel, those cookies are stored:

• A_auth
  • authentication token, allows an agent to reload the agent panel without logging in each time (if they did not log out). Agent needs to choose this option by the "Remember me" checkbox on the login screen.
  • validity: 14 days / till logout
• A_la_sid
  • currently active session in agent panel
  • validity: when the browsing session ends
• A_la_appId
  • used to prevent concurrent login
  • validity: when the browsing session ends
• gpf_language
  • chosen language for agent panel
  • validity: 230 days
• kb_preview_id
  • knowledgebase preview identification
  • validity: when the browsing session ends
• forceView
  • for agent panel manually forced switch between desktop/mobile view 
  • validity: 3 months

For a registered visitor logged into the customer portal, those cookies are stored:

• V_auth
  • authentication token, allows a visitor to reload the visitor panel without logging in each time (if they did not log out). The registered visitor needs to choose this option by the "Remember me" checkbox on the login screen.
  • validity: 14 days / till logout
• visitor_la_sid
  • currently active session in the customer portal
  • validity: when the browsing session ends

Cookies used by contact widgets integrated on other web pages:

• LaSID
  • visitor session identifier
  • validity: when the browsing session ends
• LaVisitorId_*
  • this identifier is used to recognize the visitor on each visit of your pages where the widget integration code is added
  • validity: set by administrator in Configuration > Security > Visitor cookie lifetime. The default value is 30 days. The value of 0 means the visitor is remembered only for the current session (when the browsing session ends)
• LaVisitorNew
  • information if this is a new or returning visitor, automatic invitations may display depending on this attribute
  • validity: one day
• LaReset
  • if setting Remember visitor in Configuration > Secuity > Settings was used and the visitor wants to be forgotten after the form has been sent
  • validity: when the browsing session ends
• LaRunningChat_*
  • parameters to reload the chat window if the page is refreshed or visitor navigates their browser to another page
  • validity: when the browsing session ends
• LaUserDetails
  • stores user details information defined by the administrator in integration code
  • validity: when the browsing session ends
• closedInvitations
  • list of invitations that the visitor dismissed, the invitations will not be displayed while the cookie is valid
  • validity: when the browsing session ends

Hosted LiveAgent or LiveAgent running in docker contains also:

• STICKYSESSION
  • identification of assigned application server
  • validity: when the browsing session ends

The visitor cookies are stored on the top domain of the web page, not the domain of your LiveAgent installation.