Epsilon Cookie List
Last updated: 5 March2024
Cookies set for CORE ID related Services, mainly Discovery, Prospect and Digital Media Solutions
Cookie Name | Host Name | Cookie Type | Expiration | Origination (1st party, 3rd party) | Data stored in cookie | Use of cookie |
DotomiUser | dotomi.com | Persistent | 13 months | 3rd | Pseudonymous cookie id | Manage cookie level profile, freq. cap, retargeting |
DotomiStatus | dotomi.com | Persistent | Five years plus one week | 3rd | Flag indicating opt-in or opt-out status. | Used to honor device-level opt-out preferences. |
dtm_token | client domain | Persistent + local storage + session storage | 13 months | 1st | Pseudonymous cookie id | Manage cookie level profile, freq. cap, retargeting |
dtm_token_exp | client domain | Local storage + session storage | N/A | 1st | Timestamp relative to dtm_token cookie | Logs timestamp for dtm_token cookie |
DotomiSession_NNNN | dotomi.com | Session | N/A | 3rd | Pseudonymous session id | Value within cookie isn’t used however, the presence/absence of the cookie is used for flow control and load balancing. Presence/absence of cookie is used for restricting calls to /ucm/DMCSuccessLogger endpoint to once per company session. |
dtm_sync | Client domain | Local storage + session storage | N/A | 1st | Example value: 0$19740$19740$5010-0#16164-0#52136-0#15882-0#69627-0#41963-0#9252118-0#15900-0# | Used to identify which sync pixels we set on users via registration tags |
dtm_sync_exp | Client domain | Local storage + session storage | N/A | 1st | Timestamp relative to dtm_sync cookie | Logs timestamp for dtm_sync cookie |
euconsent-v2 | consensu.org | Persistent | 13 months | 1st | Example value: | Stores consent for vendors that participate in the IAB Transparency and Consent Framework. Only written if the browser blocks third-party cookies. |
dtm_tcdata | client domain | Persistent + local storage + session storage | 1 day (cookie) | 1st | Example value: | Stores consent for vendors that participate in the IAB Transparency and Consent Framework. |
dtm_tcdata_exp | client domain | Local storage + session storage | N/A | 1st | Timestamp relative to dtm_tcdata cookie | Logs timestamp for dtm_tcdata cookie |
dtm_token_sc | Client domain | Persistent | 13 months | 1st | AAACI355WErUXgAmFbAKAAALtQE | our first party cookie set via headers on registration tags |
DotomiSync | dotomi.com or client domain. | Persistent | 12 months | 1st or 3rd | 0$18677$18677$41440- | used to identify which sync pixels we set on users via registration tags |
dtm_user_id | Client domain | Passed | 13 months | 1st or 3rd | 7891011 | used to identify users registration |
dtm_user_id_sc | Client domain | Passed | 13 months | 1st or 3rd | 7891011 | used to identify users registration |
svid | mediaplex.com | Persistent | 13 months | 3rd | Information may include pages viewed as appropriate | Used to relate preference information for marketing purposes |
dtm_gdpr_delete | dotomi.com | Persistent | 30 days | 3rd | Blank. This is just a marker cookie. | Set when GDPR data delete is executed. Life span is 30 days. When this cookie exists, GDPR consent is considered revoked. |
pluto2 | Persistent | 13 months | 3rd | Session ID | This is a temporary cookie that is created in the case when no PLUTO cookie is set AND the user hits the advertiser site where a Re-Targeting pixel has been executed. | |
pluto | Persistent | 13 months | 3rd | Session ID | The Session ID is used to track preference information. | |
fastclick | fastclick.net | Persistent | 10 years | 3rd | the string "optout" | Tells the delivery system that the browser had opted out of the network |
svid | mediaplex.com | Persistent | 13 months | 3rd | Session ID or "OPT-OUT" if the browser had opted out in the past | Used to relate preference information for the ID |
rts | Persistent | 13 months | 3rd | Timestamp | Used to track last time browser was redirected through Corporate Cookie Service / Dotomi.com domain | |
cmp-data | hosting-site domain | Persistent | 13 months | 1st | Config version, Last Updated, User UUID | Cookies places to manage consent through Epsilon's Consent Management Platform (CMP) |
euconsent-v2 | hosting-site domain | Persistent | 13 months | 1st | Example value: | Cookies places to manage consent through Epsilon's Consent Management Platform (CMP) |
euconsent-v2-ptc | hosting-site domain | Persistent | 13 months | 1st | Example value: | Cookies places to manage consent through Epsilon's Consent Management Platform (CMP) |
dtm_gpc_optout | dotomi.com or client domain. | Persistent | 30 days | 1st or 3rd | Pseudonymous cookie id | Set when GPC Optout is initiated. Presence of this cookie helps us prevent multiple downstream optout requests for the same user |
up | dotomi.com | Persistent | 13 months | Partitioned | Pseudonymous cookie id | Manage cookie level profile, freq. cap, retargeting. |
receive-cookie-deprecation | dotomi.com | Persistent | 13 months | Partitioned | 1 | |
ar_debug | *.dotomi.com | Session | Session | 3rd party | 1 | Enable transitional debug reporting in Chrome Privacy Sandbox Attribution Reporting API |
Last updated: 2 March 2023
Cookies set on our Websites
Cookie name | First or third party | Cookie type | Name of vendor | Expiry | Purpose |
__cfduid | Third | Essential | Cloudflare | 70 Days | Is used to identify individual clients behind a shared IP address and apply security settings on a per-client basis. |
__cfruid | Third | Essential | Cloudflare | N/A | Used to identify trusted web traffic. |
ELOQUA | First | Performance and functionality | Eloqua | 1.5 Years | This cookie collects and transfers contact info from webforms to internal databases. |
ELQSTATUS | First | Analytics and customisation | Eloqua | 1.5 Years | This cookie is used to recognise unique visitors to website pages and to track the pages they visit. |
lang_code | First | Essential | Epsilon | 20 Years | Used to determine the language of the user. |
_ga | Third | Analytics and Customisation | Google Analytics | 2 years | Used to distinguish users. |
_gat | Third | Analytics and Customisation | Google Analytics | 1 minute | Used to throttle request rate. |
_gid | Third | Analytics and Customisation | Google Analytics | 1 Day | Used to distinguish users. |
__hssc | Third | HubSpot | 30 Minutes | This cookie keeps track of sessions. This is used to determine if we should increment the session number and timestamps in the __hstc cookie. It contains the domain, viewCount (increments each pageView in a session), and session start timestamp. | |
__hssrc | Third | HubSpot | Session | Whenever HubSpot changes the session cookie, this cookie is also set. We set it to 1 and use it to determine if the user has restarted their browser. If this cookie does not exist when we manage cookies, we assume it is a new session. | |
__hstc | Third | Analytics and customisation | HubSpot | 2 years | The main cookie for tracking visitors. It contains the domain, utk (see below), initial timestamp (first visit), last timestamp (last visit), current timestamp (this visit), and session number (increments for each subsequent session). |
hubspotutk | Third | HubSpot | 2 Years | This cookie is used for to keep track of a visitor's identity. This cookie is passed to HubSpot on form submission and used when de-duplicating contacts. | |
__hs_opt_out | First | Analytics and customisation | Epsilon | 1 Year | This cookie enables the function of HubSpot Enterprise Analytics. |
hsfirstvisit | First | Analytics and customisation | Epsilon | Session | This cookie name is associated with websites built on the HubSpot platform and is used for website analytics. |
utmParams | First | Analytics | Epsilon | Session | This cookie persists campaign attribution data present in URL parameters for the duration of the session |
AnalyticsSyncHistory | Persistent | 30 days | 3rd Party | Used to store information about the time a sync took place with the lms_analytics cookie | |
li_sugr | Persistent | 90 days | 3rd Party | Used to make a probabilistic match of a user's identity outside the Designated Countries | |
li_gc | Persistent | 6 months | 3rd Party | Used to store consent of guests regarding the use of cookies for non-essential purposes | |
bcookie | Persistent | 1 year | 3rd Party | Browser Identifier cookie to uniquely indentify devices accessing LinkedIn to detect abust on the platform and diagnostic purposes | |
UserMatchHistory | Persistent | 30 days | 3rd Party | Used for id sync process. It stores the last sync time to avoid repeating the syncing process in a frequent manner | |
lidc | Persistent | 24 hours | 3rd Party | To facilitate data center selection |