Cookie Detection Parameters

Cookie Detection parameters allow Webtrends Analytics 9 to tie a visitor’s first hit with the rest of the visitor session. These parameters are generated and maintained by SmartSource Data Collector (SDC).

WT.co

SDC generates this parameter and sets it using the “set cookie on redirect” method of cookie detection. This is an indicator if the web client is accepting 3rd party cookies. Note that this is accomplished via a redirect. Need to set and test cookie for definitive result.

This parameter determines whether the visitor’s browser supports and is configured to accept cookies. Valid values are Yes and No.

Example:

var coQueryParam = "&WT.co=" + navigator.cookieEnabled() ? "Yes" : "No";

Valid Value: Alphanumeric string

Syntax

WT . co = isCookieEnabled

WT.co_d

SDC generates and sets this parameter to the cookie’s “value” portion of the “key=value” data if SDC attempted to set cookie. Note that this is set only for “first visit” hits. The Webtrends cookie format contains the IP address of the cookie’s connection address, and the creation time in GMT. The creation time is represented as the number of seconds and nanoseconds since 1970 (standard unix time). A checksum is appended to the end of the cookie value.

Webtrends Analytics 9 and Visitor Data Mart use this parameter for “session stitching.” The first hit of the first visitor session (which may not have a cookie) gets the cookie value in the WT.co_d parameter. Subsequent hits that have the same value for the Webtrends cookie can be tied together with the WT.co_d hit to form a complete picture of the session. Also, SDC passes the WT.co_d value; it is not passed from the visitor’s web browser.

The Webtrends cookie format contains the IP address of the cookie’s connection address and the creation time. The creation time is represented as the number of seconds and nanoseconds since 1970 (standard UNIX time). A checksum is appended to the cookie value. The following example shows the format of the cookie value:

WEBTRENDS_ID=IP Address-SSSSSSSSS.NNNNNN::checksum

The following example shows the WT.co_d parameter with a Webtrends cookie value:

WT.co_d=192.168.100.40-1045156016.29542554::A2D3FC34517CE562A9D4E33EF85D7B7F

Valid Value:  

Syntax

WT . co_d = <Cookie_Data>

WT.co_a

This parameter is used to track visitor sessions across multiple accounts in Webtrends Analytics 9 or multiple SmartSource data sources in Webtrends On Premises. SDC generates and sets this parameter to the account rollup cookie’s “value” portion of the “key=value” data if SDC attempted to set cookie (i.e. first time cookie) for a given account. Note that this is emitted only for “first visit” hits. This is used in conjunction with Account Rollup Profiles. The global rollup cookie is named ACOOKIE. Encoded inside the global rollup cookie is an account rollup cookie named WT_ACCT. The WT_ACCT cookie format is the same as a WEBTRENDS_ID cookie. It contains the IP address of the cookie’s connection address, and the creation time. The creation time is represented as the number of seconds and nanoseconds since 1970 (standard unix time). WT_ACCT=<IP Address>-<SSSSSSSSS>.<NNNNNN>

A checksum is appended to the cookie value. The following example shows the format of the cookie value:

WT_ACCT=IP Address-SSSSSSSSS.NNNNNN::checksum

The following example show the WT.co_a parameter with an account rollup cookie:

WT.co_a=192.168.100.40-1045156016.29542554
Valid Value:  

Syntax

WT . co_a = <Cookie_Data>

WT.co_f

SDC generates this parameter when you enable first-party cookie tracking in the Webtrends JavaScript tag. This parameter is passed on every hit so that Webtrends Analytics 9 and Visitor Data Mart can use it for visitor session tracking.

WT.co_f uses the following format:

IP Address-UniqueIdentifier:LastVisitTime.VisitStartTime

Where the unique identifier always 9-characters long and times use the epoch timestamp.

Example:

WT.co_f= 192.168.100.40-123456789:1045156016.29542554

You can configure the method that you want to use for your first party cookies in the SmartSource Data Source settings.

Valid Value: Alphanumeric string

Syntax

WT . co_f = <uniqueIdentifier>