Click tracking
To track clicks, we use the c.trackmytarget.com subdomain or an advertiser-configured custom subdomain. The following cookies are set:
|
Name |
Stored Data |
Expiration Time |
|---|---|---|
|
ufp |
|
400 days |
|
offerSid |
|
based on the Offer Settings |
Impression tracking
To track impressions, we use the i.trackmytarget.com subdomain or an advertiser-configured custom subdomain. The following cookies are set:
|
Name |
Stored Data |
Expiration Time |
|---|---|---|
|
ufp |
|
based on the Offer Settings |
|
offerSid |
|
based on the Offer Settings |
1-st party cookies
|
Name |
Stored Data |
Expiration Time |
|---|---|---|
|
tc_offerSid |
|
400 days |
|
tc_ufp |
|
400 days |
3-rd party cookies
|
Name |
Stored Data |
Expiration Time |
|---|---|---|
|
tc_offerSid |
click fingerprint (know as tmtData) |
based on the Offer Settings |
|
tc_ufp |
user fingerprint |
based on the Offer Settings |
Why do 1st-party click and fingerprint cookies expire at 400 days instead of following the Offer Settings?
The maximum cookie lifetime permitted by major browsers varies. Chrome and Edge currently allow cookies to persist for a maximum of 400 days, while Firefox allows up to 2 years. To ensure consistent behavior across all browsers, we have standardized 1st-party cookie expiration times to the shortest supported duration: 400 days.
Using the expiration values configured in the Offer Settings directly within the entrypoint script would introduce unnecessary complexity. It would either require advertisers to update the entrypoint script whenever expiration settings change, or require the script to retrieve the current expiration settings through an API call every time it loads. The latter approach would negatively impact script loading performance.
This implementation does not affect tracking accuracy. Any transaction that occurs outside the expiration periods defined in the Offer Settings is automatically failed by the tracking system. As a result, 1st-party cookies may remain stored in the browser for up to 400 days, but any tracking activity beyond the configured Offer Settings expiration windows is ignored. Therefore, 1st-party cookie expiration periods longer than those defined in the Offer Settings have no impact on attribution or reporting accuracy.
