Privacy Policy and Cookie Policy

Taming Twins – Privacy Notice

Last Updated: 23 Dec 2025

  • IMPORTANT INFORMATION AND WHO WE ARE
    • This Privacy Notice details how and why Taming Twins Limited (“we”, “us”, “our”) collect and process your personal data.
    • This Privacy Notice relates to your personal data that is collected, processed, stored or otherwise used by us as a data controller, including when you use our website or subscribe to our newsletter.
    • We are registered as a data controller with the Information Commissioner’s Office, and our registration number is ZB823403.
    • Please read this Privacy Notice together with any other privacy notice we may provide on specific occasions when we are collecting or processing personal data about you so that you are fully aware of how and why we are using your data. This Privacy Notice supplements other notices and privacy policies and is not intended to override them.
    • This Privacy Notice may change from time to time and, if it does, the up-to-date version will always be made available on our website.
    • We may include links to third-party websites, plug-ins and applications. Clicking on those links or enabling those connections may allow third parties to collect or share data about you. We do not control these third-party websites and we do not accept any responsibility or liability for these policies. Please check these policies before you submit any personal data to these websites.
  • CONTACT US AND COMPLAINTS
    • If you have any questions about this Privacy Notice or our use of your information you can contact us at hello@tamingtwins.com or via our website at www.tamingtwins.com/contact/.
    • You also have the right to make a complaint to the Information Commissioner’s Office (ICO), the UK regulator for data protection issues about our use of your information. You can contact the Information Commissioner’s Office at www.ico.org.uk/global/contact-us/contact-us-public/. We would, however, appreciate the chance to deal with any concerns before you approach the ICO so please contact us in the first instance.
  • WHAT DATA WE COLLECT
    • We may collect, use, store and transfer different kinds of personal data about you which we have grouped together as follows:
      • Information you give to us. You may give us information about you when communicating with us by email, in person or via our website.

The information you give to us may include:

  • your name and your contact details, such as email address; and
  • your preferences in receiving marketing from us and our third parties and your communication preferences.
  • Information we collect about you. Each time you visit our website or open an email from us, we may automatically collect the following information:
    • web usage information (e.g. IP address), browser type and version, time zone setting, location, operating system and platform, device ID and other technology on the devices you use to access this website; and
    • information about your visit, including the URL clickstream to, through and from our website (including date and time); time on page, page response times, download errors, length of visits to certain pages, page interaction information (such as scrolling, clicks and mouse-overs).
  • Information we receive from other sources. We may receive information about you from third parties, including technical data from analytics providers (such as email data from Kit and data obtained via cookies on our website from Mediavine), from social media platforms (for example on Facebook, Instagram, TikTok, YouTube, X or other social media platforms) or from our third-party suppliers.
  • We also collect, use and share Aggregated Data such as statistical or demographic data for any purpose. Aggregated Data could be derived from your personal data but is not considered personal data in law as this data will not directly or indirectly reveal your identity. For example, we may aggregate the data on how you use our website to calculate the percentage of users accessing a specific website feature. However, if we combine or connect Aggregated Data with your personal data so that it can directly or indirectly identify you, we treat the combined data as personal data which will be used in accordance with this Privacy Notice.
  • OUR USE OF COOKIES

Our website uses cookies to distinguish you from other users, to improve your experience on our website and to provide targeted advertising. You can set your browser to refuse all or some browser cookies, or to alert you when websites set or access cookies. If you disable or refuse cookies, please note that some parts of this website may become inaccessible or not function properly.  For more information, please view our Cookie Notice.

  • HOW WE USE YOUR DATA AND OUR LEGAL BASIS FOR PROCESSING YOUR DATA
    • The table below sets out how we will use your personal data and the lawful bases we rely on to do so.
Purpose/Processing Activity Type of Personal Data Lawful Basis for Processing
To respond to any queries yousend us and to contact you where necessary.

 Your name, your contact details and any other personal data included within the correspondence.Necessary for our legitimate interests – responding to website users’ queries.To deploy and process personal data collected via cookies that are strictly necessary, as set out in our Cookie Policy.Web usage information (e.g. IP address) and information about your visit on our website.Necessary for our legitimate interests – for the operation of the website.To deploy and process personal data collected via cookies that are not strictly necessary, as set out in our Cookie Policy (for example, to undertake targeting advertising, measure advertising performance, understand our audience, plan our content and develop our services).Web usage information (e.g IP address) and information about your visit on our website.Consent – obtained via our website’s cookie banner and settings.To use data analytics to improve our website, customer relationships and experiences.Web usage information (e.g IP address) and information about your visit on our website.Necessary for our legitimate interests – to keep our website updated and relevant, to develop our business and to inform our marketing strategy.For the purposes of site security, prevent and detect fraud, and fix errors.Web usage information (e.g IP address) and information about your visit on our website.Our legitimate interests, and those of our users, in ensuring the security and integrity of our website, and to ensure the website operates correctly.

Legal obligation – to comply with applicable data protection and cyber security laws.For the purposes of sending you our email newsletter.Your name and email address.Your consent – obtained via a tick box when you provide your email address.

  • Sometimes, we may need to process your data to comply with a legal or regulatory obligation.
  • Please note that we may process your personal data without your knowledge or consent, in compliance with the relevant rules, where this is required or permitted by law.
  • HOW LONG WE KEEP YOUR DATA
    • We will retain your personal data for as long as it is needed for the purposes set out in this notice or for as long as we are required to by applicable law.
    • We (and third parties we use to place cookies on our website) will keep analytics data collected via cookies for 14 months after which time the data will be anonymised.
  • OPTING OUT OF MARKETING
    • You can ask to stop sending you marketing communications or our email newsletter at any time by following the opt-out links within any marketing communication sent to you or by contacting us at hello@tamingtwins.com or via our website at www.tamingtwins.com/contact/.
    • If you opt out of receiving marketing communications, you will still receive service-related communications that are essential for administrative or customer service purposes for example relating to updates to our Terms and Conditions.
  • HOW WE SHARE YOUR PERSONAL DATA
    • We may share your personal data where necessary with the parties set out below for the purposes set out in the table above.
      • Service providers who provide IT and system administration services.
      • Professional advisers including lawyers, bankers, auditors and insurers who provide consultancy, banking, legal, insurance and accounting services.
      • HM Revenue & Customs, regulators and other authorities acting as processors or joint controllers based in the United Kingdom who require reporting of processing activities in certain circumstances.
      • Third parties to whom we may choose to sell, transfer or merge parts of our business or our assets. Alternatively, we may seek to acquire other businesses or merge with them. If a change happens to our business, then the new owners may use your personal data in the same way as set out in this Privacy Notice.
      • Analytics and advertising providers, such as Mediavine and Kit.
    • INTERNATIONAL TRANSFERS
      • We may transfer your personal data to service providers that carry out certain functions on our behalf. This may involve transferring personal data outside the UK to countries which have laws that do not provide the same level of data protection as the UK law.
      • Whenever we transfer your personal data out of the UK to service providers, we ensure a similar degree of protection is afforded to it by ensuring that the following safeguards are in place, we will:
        • transfer your personal data to countries that have been deemed by the UK to provide an adequate level of protection for personal data, namely, the European Union; or
        • only transfer your personal data to countries outside of the UK that have not been deemed adequate when we have in place specific contracts approved for use in the UK which give personal data the same protection it has in the UK.
      • Please contact us if you require further information on the specific mechanism used by us when transferring your personal data out of the UK.
    • HOW WE PROTECT YOUR DATA
      • Protecting your data is important to us. We have put in place appropriate security measures to prevent your personal data from being accidentally lost, used or accessed in an unauthorised way, altered or disclosed. In addition, we limit access to your personal data to those employees, agents, contractors and other third parties who have a business need to know.  They will only process your personal data on our instructions, and they are subject to a duty of confidentiality.
    • YOUR RIGHTS
      • Under certain circumstances, you have rights under data protection laws in relation to your personal data. You have the right to:
        • Request access to your personal data (commonly known as a “data subject access request“).
        • Request correction of the personal data that we hold about you.
        • Request that your personal data is erased if there is no good reason for us continuing to process it.
        • Object to processing of your personal data where we are relying on a legitimate interest (or those of a third party).
        • Request restriction of processing of your personal data.
        • Request the transfer of your personal data to you or to a third party.
        • Withdraw consent at any time where we are relying on consent to process your personal data.
      • You can exercise these rights by contacting us at hello@tamingtwins.com or via our website at www.tamingtwins.com/contact/.

Taming Twins – Cookie Notice

  • Our website uses cookies to distinguish you from other users of our website.This helps us to provide you with a good experience when you browse our website and also allows us to improve our site.
  • A cookie is a small file of letters and numbers that we store on your browser or the hard drive of your computer if you agree. Cookies contain information that is transferred to your computer’s hard drive.
  • We use the following cookies:
    • Strictly necessary cookies. These are cookies that are required for the operation of our website.  These essential cookies are always enabled because our website will not work properly without them. They include, for example, cookies that remember your cookie consent preferences and help keep the website secure. You can switch off these cookies in your browser settings but you may then not be able to access all or parts of our website.
    • Analytical or performance cookies. These allow us to recognise and count the number of visitors and to see how visitors move around our website when they are using it.  This helps us to improve the way our website works, for example, by ensuring that users are finding what they are looking for easily.
    • Functionality cookies. These are used to recognise you when you return to our website.  This enables us to personalise our content for you and remember your preferences (for example, remembering your preferences and enabling embedded content you choose to view).
    • Targeting cookies. These cookies record your visit to our website, the pages you have visited and the links you have followed.  We will use this information to make our website and the advertising displayed on it more relevant to your interests. We may also share this information with third parties for this purpose so that they can serve you with relevant advertising on their websites.
  • You can find more information about the individual cookies we use and the purposes for which we use them in the table below:
Cookie Expire Purpose
__am:cf@v1 Persistent Stores internal configuration data used by Monet Engine’s Prebid ad management system.
__am:cf@v1 Persistent Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
__amuidpb Persistent Maintains identifiers for ad partners (e.g., Yahoo) to synchronize user data across exchanges.
__amuidpb Persistent Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
__cf_bm 30 minutes Used by Cloudflare to distinguish human traffic from bots.
__cf_bm 30 minutes Security cookie from Cloudflare for bot detection and protection
__cmpcccu* Persistent Consentmanager cookie that stores information about the user’s consent choices, ensuring the site remembers cookie preferences across sessions.
__cmpcccu* Session Used by Consentmanager to record consent preferences.
__cmpcccu* Persistent Records consent management compliance from user choices
__cmpconsent* Persistent Consentmanager cookie used to record and manage a user’s cookie consent settings to comply with data protection regulations.
__cmpconsent* Session Stores user consent for cookies and tracking.
__cmpconsent* Persistent Stores the user’s consent preferences for cookie usage
__eoi 180 days Used by Google Ads for conversion tracking and remarketing.
__gads 390 days Set by Google to measure interactions with ads on the site.
__gpi 390 days Used by Google Ads to deliver relevant ads across websites.
__id5test Persistent ID5 platform test cookie for ad identifier integrity
__ktpct 10 minutes Session cookie used by BidTheatre for tracking ad requests and campaign performance.
__kuid Session Unique identifier assigned by BidTheatre to track users and build advertising profiles.
__mguid_ 1095 days Assigns a persistent user ID to recognize returning visitors and serve targeted advertising.
__storage_test__* Persistent E-Planning test cookie used to check whether the browser supports local storage and cookies, ensuring proper site functionality.
__storage_test__* Persistent Google Ads test cookie used to check whether the browser supports cookies and local storage, ensuring ads display properly.
__storage_test__* Persistent Test cookie set by Baidu’s Mediago platform to check browser local storage functionality. Retention: Persistent (but non-tracking, technical).
__store2_test Persistent Test cookie for store operations / ad sync checks
_Amc_b 6 minutes Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
_Amc_s 6 minutes Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
_Amc_t 6 minutes Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
_amppx Persistent Collects pseudonymous user data to optimize ad bidding and personalization.
_amppx Persistent Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
_amuid2 180 days Assigns a persistent user ID to recognize returning visitors and personalize ads.
_amuid2 180 days Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
_amuts 1 days Identifier cookie used by Monet Engine (AdaptMX) for tracking users in ad networks. Retention: 1 day (short-term profiling).
_cc_aud Session Lotame audience cookie used to store audience segment data for behavioral targeting. Retention: Session (short-lived).
_cc_cc Session Lotame cookie that confirms a user’s browser supports cookies and helps enable targeting. Retention: Session.
_cc_dc Session Lotame cookie used for ad frequency capping and delivery control. Retention: Session.
_cc_id Persistent E-Planning cookie assigning a unique user ID to enable cross-site tracking, targeted ads, and campaign measurement.
_cc_id 270 days, 1 minutes E-Planning cookie assigning a unique user ID to enable cross-site tracking, targeted ads, and campaign measurement. Identifies a user for targeted advertising and performance measurement, with a defined expiry period.
_cc_id Session Lotame’s unique ID for tracking users across sites and enabling behavioral advertising. Retention: Session.
_ga 730 days Used by Google Analytics to distinguish unique users.
_ga_* 730 days Stores anonymized analytics data to understand user behavior.
_gcl_aw 90 days Used by Google Ads for ad click conversion tracking.
_gcl_gs 90 days Helps Google Ads link user actions with ad clicks.
_gcl_ls Persistent Syncs Google Ads click identifiers for ad attribution
_gd*_33acrossId Session Maintains internal identifiers for 33Across integration.
_gd*_33acrossId Session Relates to 33Across cross-domain ID linking logic
_gd*_sharedId Session Manages shared user ID for publisher integrations.
_gd*_sharedId Session SharedID-based linking between publishers and ad systems
_geffran 2 days Internal feature or experiments flag cookie
_GESPSK-amazon.com Persistent Stores ad targeting signals for Amazon DSP integrations
_GESPSK-esp.criteo.com Persistent Synchronizes Criteo subdomain signals for ad delivery
_GESPSK-esp.pubmatic.com Persistent Synchronizes PubMatic signals for ad targeting
_GESPSK-openx Persistent Syncs OpenX identifier state for ad auctions
_GESPSK-rtbhouse Persistent Syncs RTB House ID for ad personalization
_GESPSK-sharedid.org Persistent Stores shared ID values across ad partners
_GESPSK-uidapi.com Persistent Syncs IDs via UID API for ad consistency
_getdran 2 days Internal data routing or debug flag cookie
_geuid 180 days Encoded identifier used in ad tracking or attribution
_iiq_ab_group_505173155 Session Part of AB testing or segmentation logic for ads
_iiq_ab_percentage_505173155 Session Manages AB test weighting or traffic split for ads
_iiq_ch Persistent Channel or campaign identification for ad routing
_iiq_ch Session Stores channel/campaign routing flags used by the site’s header-bidding / ad logic. Used to control which ad partners are invoked and for performance diagnostics. (First-party support for ad auctions; lawful basis: legitimate interest / consent for targeted ads.)
_iiq_debug_level Session Stores debug level flags used to enable/disable detailed logging for header-bidding and ad diagnostics; not used for profiling.
_iiq_fdata Persistent Generic storage for bidding/profile identifiers used by ad partners; enables user matching and bid optimization.
_iiq_fdata Session Generic storage for bidding/profile identifiers used by ad partners; enables user matching and bid optimization.
_iiq_fdata_505173155 Persistent Holds header-bidding metadata (eids, counts, no-data flags) used to build bid requests and match users to buyers — used for ad targeting, audience matching and auction performance. (Lawful basis: consent for personalized ads.)
_iiq_fdata_505173155 Session Holds header-bidding metadata (eids, counts, no-data flags) used to build bid requests and match users to buyers — used for ad targeting, audience matching and auction performance. (Lawful basis: consent for personalized ads.)
_iiq_fdata_505291636 Persistent Stores persistent header-bidding / profiling payloads used for matching users with demand partners and improving targeting.
_iiq_pb_monitoringenabled_505173155 Session Feature flag indicating whether performance monitoring of the header-bidding pipeline is enabled.
_iiq_pb_pausetill_505173155 Session Throttling flag used to pause bidding or sampling for a set interval (used for traffic management/testing).
_iiq_requestrtt_505173155 Session Stores measured request round-trip times for performance monitoring of ad calls.
_iiq_sync_396660830 Persistent ID sync cookies used to synchronize user identifiers with external ad partners (cookie syncing) so bidders can recognize the same user across systems. (Consent required for personalized advertising.)
_iiq_sync_505173155 Persistent ID sync cookies used to synchronize user identifiers with external ad partners (cookie syncing) so bidders can recognize the same user across systems. (Consent required for personalized advertising.)
_iiq_sync_505173155 Session ID sync cookies used to synchronize user identifiers with external ad partners (cookie syncing) so bidders can recognize the same user across systems. (Consent required for personalized advertising.)
_iiq_sync_505291636 Persistent ID sync cookies used to synchronize user identifiers with external ad partners (cookie syncing) so bidders can recognize the same user across systems. (Consent required for personalized advertising.)
_li_ss Session Leadinfo cookie used to track website visitors for B2B lead generation and analytics. Retention: Session.
_ljtrtb_80 365 days Sovrn (Lijit) cookie storing bid request and targeting data to enable programmatic advertising and campaign optimization.
_ljtrtb_8101 365 days Sovrn (Lijit) cookie used to assign identifiers for ad targeting, frequency capping, and delivery optimization on publisher sites.
_lr_env_src_ats 30 days
_lr_retry_request 1 hours Used by Sovrn to retry ad requests that previously failed — helps ensure ads are delivered and metrics are accurate.
_nauid Session Identifies users across partner sites to personalize and optimize ad delivery.
_ope_topics Persistent Stores topic (interest) signals used for privacy-sandbox style topic-based interest signals and ad selection. (If Topics API is used, this is effectively an interest signal; lawful basis: consent for personalization.)
_pubCommonId 1825 days Stores a universal advertising ID for header bidding.
_pubCommonId_cst 1825 days Used for ad personalization and frequency capping.
_rxuuid Session Persistent identifier for users to enable retargeting and cross-device tracking (Nexxen).
_rxuuid Session Used by Unruly to measure ad interactions and reach.
_scor_uid 390 days Tracks anonymous visitor IDs for ad reporting.
_scor_uid Session Stores a Comscore/Scorecard Research identifier used for audience measurement, viewability and aggregated analytics. (Lawful basis: legitimate interest for audience measurement OR consent depending on region.)
_ssuma Session Tracks users across sessions and assigns IDs for audience segmentation and targeted advertising (Basis Global Technologies / SiteScout).
_sv3_13 1 days Tracks user interactions across websites for ad delivery and campaign measurement.
_sv3_13 1 days Short-term ad server cookie to log user interactions and ad impressions for targeted advertising. Expires in 1 day, minimizing long-term tracking risk.
_sv3_14 1 days Same family as _sv3_13; used for ad performance tracking and personalization.
_sv3_14 1 days Tracks ad delivery and user engagement. Retention only 1 day.
_sv3_15 1 days Assigns temporary IDs for targeted advertising (short-lived ad sync cookie).
_sv3_3 1 days Tracks users for frequency capping and ad delivery optimization.
_sv3_3 1 days Stores identifiers for ad request handling and targeting. Retention 1 day.
_sv3_4 1 days Part of Monet Engine’s ad tracking suite; helps build user ad profiles.
_sv3_6 1 days Used for audience segmentation and retargeting. Expires in 1 day.
_sv3_7 1 days Stores short-lived IDs to identify returning users for ads.
_sv3_8 7 days, 23 hours, 27 minutes Longer retention cookie for cross-site ad targeting and measurement.
_sv3_8 1 days, 1 minutes Tracks frequency and effectiveness of ad impressions. Retention about 1 day.
_tracker 393 days Travel Audience (Amadeus) cookie used to collect data on travel intent and user behavior to deliver personalized travel ads.
_tracker 395 days Tracks visitors for personalized travel ads.
_unifiedId Persistent Stores a unified identity token used by unified ID solutions (header bidding / identity layers) for cross-publisher matching and ad targeting. (Consent required for personalized advertising.)
_unifiedId_cst Persistent Stores a unified identity token used by unified ID solutions (header bidding / identity layers) for cross-publisher matching and ad targeting. (Consent required for personalized advertising.)
_unifiedId_exp Persistent Stores a unified identity token used by unified ID solutions (header bidding / identity layers) for cross-publisher matching and ad targeting. (Consent required for personalized advertising.)
33acrossId Session Enables content personalization and cookie management.
33acrossId Persistent Core 33Across ID for cross-site ad targeting
33acrossId_cst Session Supports cookie consent and session tracking.
33acrossId_cst Persistent Stores timestamp or state for 33Across ID changes
33acrossId_exp Session Manages cookie expiration and session state.
33acrossId_exp Persistent Holds expiry time of 33Across ID to enforce validity
33acrossId_last Session Saves last session details for returning users.
33acrossId_last Persistent Records last update of the 33Across ID
33acrossIdFp Session Stores session identifiers for site features.
33acrossIdHm Session Stores session identifiers for site features.
33acrossIdTp Session Stores session identifiers for site features.
33acrossIdTp Persistent Links user identity across domains for better ad targeting
A3 Session Used by Yahoo for ad targeting and measuring ad effectiveness across its network.
aa 3650 days Long-term identifier cookie for consumer profiling, opt-out preferences, and targeted advertising.
ab Session Session-level cookie for tracking ad exposure and consumer behavior to refine audience segments.
ac_r 13 days, 23 hours, 54 minutes AdmanMedia cookie used to track advertising interactions and deliver targeted advertisements.
ad-id Session Amazon Advertising cookie used to store identifiers for ad personalization, attribution, and measurement across Amazon’s ad network.
ad-privacy Session Amazon Advertising cookie that stores a user’s ad preferences and opt-out settings to manage personalized advertising choices.
ADGRX_CM_PUBMATIC_BRIDGED Session Used by Samsung Ads to synchronize identifiers with PubMatic and bridge user IDs across ad platforms for targeted advertising.
ADGRX_UID Session Unique Samsung Ads identifier to track users across sessions and deliver personalized advertising.
ADK_EX_11 14 days Stores ad exchange/session data for ad delivery and targeting in the Adkernel network.
ADKUID Session Adkernel identifier cookie used to track users across partner sites and enable real-time bidding for ads.
admtr 13 days, 23 hours, 54 minutes AdmanMedia tracking cookie that stores identifiers to measure campaign effectiveness and support targeted advertising.
am_gpp 365 days Stores Global Privacy Platform (GPP) / CMP versioning and GPP strings — used to record privacy choices (consent/opt-outs) to comply with local privacy frameworks.
am_gpp_cmp_version 365 days Stores Global Privacy Platform (GPP) / CMP versioning and GPP strings — used to record privacy choices (consent/opt-outs) to comply with local privacy frameworks.
am_tokens 14 days Identifier token used to assign user IDs for ad exchanges and campaign tracking. Retention: 14 days (short-term profiling).
am_tokens Session Mediavine exchange cookie used to store ad request identifiers. Retention: Session.
am_tokens 14 days PubNation exchange cookie to generate user tokens for ad targeting. Retention: 14 days.
am_tokens 365 days Stores encrypted tokens / config used by the site’s ad stack (consent tokens or publisher tokens for ad services).
am_tokens_eu-v1 14 days EU-specific identifier token for audience segmentation and ad serving. Retention: 14 days.
am_tokens_eu-v1 Session Mediavine EU-specific token cookie for compliance and ad targeting. Retention: Session.
am_tokens_eu-v1 14 days EU-specific PubNation cookie for campaign management and profiling. Retention: 14 days.
am_tokens_eu-v1 365 days Stores encrypted tokens / config used by the site’s ad stack (consent tokens or publisher tokens for ad services).
amdt_t 365 days Used by ad tech platforms (AdaptMX / Monet Engine) to store timestamp or tracking identifiers for user sessions, enabling advertising attribution and targeted campaigns.
amuid2 Session Assigns a session-based advertising identifier for real-time bidding.
amuid2 Session Persistent advertising identifier that allows tracking users across sessions and sites, supporting audience profiling and ad targeting.
amxId Persistent Used by Monet Engine for ad auction participation and campaign targeting.
amxId Persistent Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
AMZN-Token Session Stores Amazon Advertising token for ad personalization
anj Session Xandr cookie used to record whether a user has been synced with partners, enabling more accurate ad targeting and reporting.
ANON_ID Session Identifies anonymous users for targeted ads.
anProfile 180 days Builds audience profiles to tailor ad content and personalize marketing efforts.
APC Session Google DoubleClick cookie used to support ad delivery, frequency capping, and measurement of campaign performance.
aps:*:deviceSignal/sua Persistent Cookie used to collect device signals (architecture, OS, etc.) for session management or personalization. Retention: Persistent.
aps:*:deviceSignal/sua Persistent Device signal objects collected to support ad targeting and identity resolution (device fingerprinting fields such as platform, model, architecture). (Consent required for profiling.)
aps:*:sessionMarker/marker Persistent Session marker cookie used for site stability and request routing, ensuring continuity of user sessions. Retention: Persistent.
aps:*:sessionMarker/marker Persistent Device signal objects collected to support ad targeting and identity resolution (device fingerprinting fields such as platform, model, architecture). (Consent required for profiling.)
aps:38918095-8e45-4332-88bf-226b3514cb64:idVendors/enabled Persistent
apstagCxMEnabled Persistent Flag indicating whether Amazon Publisher Services header bidding (apstag) client X is enabled — controls ad auction behavior.
ar_debug 34 days, 18 hours, 21 minutes Google DoubleClick cookie used for debugging ad-related features and ensuring proper ad delivery.
ar_debug Session Debugging cookie used by Google Ads to test and troubleshoot ad delivery functionality. Retention: Session.
ASDT Session Session cookie used by IntentIQ to assign or refresh temporary session identifiers. Enables advertising functions such as frequency capping, fraud prevention, and audience segmentation.
audit Session Stores session-based data for tracking and verifying ad interactions.
audit_p 365 days Persistent version of audit, used to log ad delivery and performance.
b Session Cookie set by Blis Global to track users’ location and behavior for geo-targeted advertising. Retention: Session.
bcookie Session Browser identifier that ensures secure access and integrity of LinkedIn integrations.
bito Session Advertising identifier used by Beeswax to track users across sessions for targeted ad delivery and frequency capping. Retention: Session.
bitoIsSecure Session Cookie set by Beeswax (Bidr.io) to store secure advertising identifiers for ad targeting and campaign measurement. Retention: Session (short-lived).
browser_data Session Criteo cookie that stores browser and device fingerprinting data for retargeting. Retention: Session.
browser_id Session Identifies devices or browsers uniquely to enable personalized ads and analytics.
C Session Adform cookie used to track user consent status and deliver targeted advertisements across partner sites.
c 365 days Set by BidSwitch to track user consent status and enable ad delivery, targeting, and frequency capping across partner sites.
c Session Cookie used by Platform161 to log user identifiers for targeted advertising and campaign tracking. Retention: Session.
c 730 days Tracks user interactions for ad delivery optimization and frequency capping.
c Session Tracks user interactions with ads and controls delivery frequency.
c Session Identifies sessions / users for analytics and ad distribution in sports contexts.
carbon_ccuid Persistent Cross-device / cross-vendor IDs used for linking the same user across devices and sessions to support personalization and measurement.
ccsid Session Cross-device / cross-vendor IDs used for linking the same user across devices and sessions to support personalization and measurement.
ccuid 89 days Cookie used by ad exchange gateways for user identification and tracking across campaigns. Retention: ~89 days, which is medium-term profiling.
ccuid Session Cross-device / cross-vendor IDs used for linking the same user across devices and sessions to support personalization and measurement.
CDIPARTNERS Session DeepIntent cookie used to store partner identifiers and match users across exchanges. Retention: Session.
CDIUSER Session DeepIntent user ID cookie for tracking and personalized ad delivery. Retention: Session.
checkForPermission Session Used by Beeswax to check user advertising consent/eligibility before setting other ad cookies. Retention: Session.
chkChromeAb67Sec Session Test cookie used to check Chrome browser behavior and security settings to ensure ad delivery functions correctly.
cid Session First-party identifier cookie used to track user sessions for ad targeting. Retention: Session.
CID Session Stores session or client ID for performance measurement.
cid_* Session Crimtan cookie for storing campaign/session identifiers to deliver relevant ads. Retention: Session.
CMID Session Index Exchange cookie that stores a unique identifier for users to deliver targeted ads and measure ad campaign performance.
CMPRO Session Index Exchange cookie used to track user preferences and improve ad relevance by optimizing bidding and delivery.
CMPS Session Index Exchange cookie that stores information about ad interactions to deliver more relevant ads and measure effectiveness.
cnx_userId 30 days Cookie set by Connatix to assign a unique user ID for tracking and targeted video advertising. Retention: 30 days (short- to mid-term profiling).
Conversion Session Tracks conversions or ad clicks for Google Ads attribution
cookie 365 days Persistent identifier cookie used by BidBerry for long-term user tracking, profiling, and targeted advertising. Retention: 365 days (long-term profiling).
cookie Session Assigns a unique user ID for ad targeting and retargeting across websites.
cookietest Session Checks whether cookies/local storage can operate properly (site functionality test)
cOptout 365 days Stores user consent or opt-out preferences for targeted advertising and data collection.
cP 365 days Maintains session information and user authentication preferences across visits.
cProfile 15 days Builds a profile of visitor interests to deliver personalized ads and content.
criteo Persistent Criteo cookies used for retargeting, storing Criteo IDs, auction bid IDs and enabling personalized ad delivery and attribution. (Consent required for personalized advertising.)
criteo_* Persistent Criteo cookies used for retargeting, storing Criteo IDs, auction bid IDs and enabling personalized ad delivery and attribution. (Consent required for personalized advertising.)
CSDT Session Stores session-based identifiers to manage IntentIQ’s device and user recognition for targeted advertising.
csuuid Session Assigns a unique ID to track the user for advertising, retargeting, and frequency capping.
csync Session Synchronizes user IDs across ad platforms for targeted advertising (Equativ / Smartadserver).
CT Session E-Planning cookie used to track ad delivery and performance, enabling targeted advertising on publisher sites.
cto_bidid Persistent Criteo cookies used for retargeting, storing Criteo IDs, auction bid IDs and enabling personalized ad delivery and attribution. (Consent required for personalized advertising.)
cto_bundle 390 days Criteo cookie containing a bundle of identifiers to enable cross-site tracking, personalized advertising, and measurement of ad performance.
cto_bundle 390 days Set by Criteo to deliver targeted advertising.
cto_bundle Persistent Criteo cookies used for retargeting, storing Criteo IDs, auction bid IDs and enabling personalized ad delivery and attribution. (Consent required for personalized advertising.)
cto_dna_bundle Persistent Criteo cookies used for retargeting, storing Criteo IDs, auction bid IDs and enabling personalized ad delivery and attribution. (Consent required for personalized advertising.)
cto_pub_test_tld 1 hours Used by Criteo for ad serving tests and tracking.
cto_pub_test_tld Session Criteo cookies used for retargeting, storing Criteo IDs, auction bid IDs and enabling personalized ad delivery and attribution. (Consent required for personalized advertising.)
cto_writeable 1 hours Enables ad personalization and measurement.
cto_writeable Session Criteo cookies used for retargeting, storing Criteo IDs, auction bid IDs and enabling personalized ad delivery and attribution. (Consent required for personalized advertising.)
cu Session Used to track ad delivery, frequency, and measure campaign effectiveness for targeted marketing.
custom_data Session BidSwitch cookie used to store user-specific data for tailoring ad delivery and improving relevance of displayed advertisements.
data-mv 365 days Media.net cookie that stores a unique visitor ID to track user behavior across partner sites for personalized ad targeting and campaign measurement.
data-thr 7 days Media.net cookie used to manage ad frequency and track user interactions over a short period (e.g., a week) to optimize ad delivery.
dc Session Cookie used by Between Exchange to assign device IDs and support advertising auctions. Retention: Session only (short-lived).
demdex Session Adobe Audience Manager (Demdex) cookie that stores a unique ID for user profiling, audience segmentation, and targeted advertising.
did 365 days Stores a unique user ID for cross-device ad targeting and identity resolution.
didts 365 days Tracks the timestamp of the last identity synchronization for ad targeting accuracy.
done_redirects147 Session Records redirect activity for ad tracking and optimization.
done_redirects154 1 days Tracks ad redirections to attribute conversions to specific campaigns.
done_redirects161 Session Tracks redirects for audience segmentation and ad attribution.
done_redirects162 Session Records advertising redirects to measure engagement.
done_redirects190 Session Tracks redirect events to help manage ad placement frequency.
done_redirects200 Session Stores data on redirects for campaign performance analysis.
done_redirects236 1 days Used to record and analyze redirect events for ad measurement.
done_redirects252 1 days Supports ad tracking by logging redirect interactions.
done_redirects280414 1 days Short-lived cookie used to log ad redirects and measure delivery success. Retention: 1 day.
done_redirects297 1 days Helps measure effectiveness of advertising redirects.
DotomiTest Session Epsilon cookie used for testing and identifying user IDs to support targeted advertising and campaign measurement.
dpm Session Adobe Audience Manager (Demdex) cookie used to store and synchronize unique IDs for user profiling, audience segmentation, and targeted advertising.
DPSync4 90 days PubMatic cookie used to synchronize user IDs with advertising partners, enabling more accurate audience targeting and campaign reporting.
DSID Session Google DoubleClick cookie that stores identifiers for user authentication across devices and is used for personalized advertising and attribution.
dtm_gpc_optout 30 days Epsilon cookie that records whether a user has opted out of personalized advertising, ensuring compliance with privacy preferences.
dv0qai26lg6v2y6kl7yyc36brext* 9 hours, 30 minutes Used to track browsing activity and personalize ad delivery on Mediago’s ad network.
DW 228 days, 16 hours, 15 minutes Unique identifier for panel-based ad effectiveness research by Kantar.
DW_Time 228 days, 16 hours, 15 minutes Tracks the timestamp of ad exposures for campaign measurement (Kantar/InsightExpress).
E 400 days, 1 minutes E-Planning cookie that stores user identifiers to support ad targeting, frequency capping, and measurement of advertising effectiveness.
EE Session Nielsen cookie used to collect anonymous audience measurement data and connect online behavior with offline panels. Retention: Session (short-lived).
eud Session Stores encrypted user data for Amazon Ad Server (Sizmek) ad targeting.
euds Session Stores session-based encrypted user data for ad delivery optimization.
everest_g_v2 Session Adobe Advertising Cloud cookie to log conversions, measure ad effectiveness, and connect ad exposure to actions. Retention: Session (short-lived, measurement-only).
fcap Persistent Manages ad frequency capping to avoid showing the same ad repeatedly.
feature_test Persistent Internal experiment/feature flag used by site or ad stack to toggle behavior during tests.
flashtalkingad1 730 days Persistent identifier set by Flashtalking to recognize returning users, deliver ads, and measure campaign performance. Retention: 730 days (very long-term profiling, high compliance risk).
g 365 days Long-term RTB House cookie used to store unique identifiers for personalized ad targeting. Retention: 365 days (long-term profiling).
gads_privacy_sandbox_tcf_hash Persistent Stores hashed TCF/consent configuration used to map privacy choices to ad logic (Privacy Sandbox / TCF hybrid).
gdpr Session Stores GDPR consent string/choices for compliance and ad-serving logic. Retention: Session.
geuid Persistent Encoded user identifier used for targeting/attribution — used by header-bidding or identity provider.
gid_CAESE* 365 days Persistent identifier cookie by Crimtan for profiling and personalized ads. Retention: 365 days (long-term profiling).
GLOBALID Session Bidtellect tracking cookie used to assign a unique global identifier for users across partner sites, enabling interest-based advertising. Retention: Session.
gob_cookie 365 days Used by InMobi for user tracking and targeted advertising.
goog:cached:topics Persistent Caches Topics API interest signals (Privacy Sandbox Topics) to allow topic-based ad selection; used for interest-based advertising.
google_push 4 minutes BidSwitch cookie that syncs identifiers with Google’s advertising systems to support real-time bidding and personalized ad delivery.
grow_check_third_party_cookie_support 400 days Cookie used to test whether third-party cookies are supported by the browser. Retention: 400 days (unusually long for a test cookie; should be flagged).
GROW_USER_ID Persistent Tracks growth or engagement identifiers for ad targeting
grow-faves:connectId:retryTime Persistent First-party storage used by the site’s personalization/growth module to store recent items, retry schedules for third-party syncs (LiveRamp, Publink, UID2), and Snowplow (analytics) user info. Use: personalization, analytics and ad targeting. (Lawful basis: consent for personalized advertising; legitimate interest for basic analytics depending on region.)
grow-faves:ghu Persistent First-party storage used by the site’s personalization/growth module to store recent items, retry schedules for third-party syncs (LiveRamp, Publink, UID2), and Snowplow (analytics) user info. Use: personalization, analytics and ad targeting. (Lawful basis: consent for personalized advertising; legitimate interest for basic analytics depending on region.)
grow-faves:liveramp:retryTime Persistent First-party storage used by the site’s personalization/growth module to store recent items, retry schedules for third-party syncs (LiveRamp, Publink, UID2), and Snowplow (analytics) user info. Use: personalization, analytics and ad targeting. (Lawful basis: consent for personalized advertising; legitimate interest for basic analytics depending on region.)
grow-faves:publink:retryTime Persistent First-party storage used by the site’s personalization/growth module to store recent items, retry schedules for third-party syncs (LiveRamp, Publink, UID2), and Snowplow (analytics) user info. Use: personalization, analytics and ad targeting. (Lawful basis: consent for personalized advertising; legitimate interest for basic analytics depending on region.)
grow-faves:recentlyViewedPageIds Persistent First-party storage used by the site’s personalization/growth module to store recent items, retry schedules for third-party syncs (LiveRamp, Publink, UID2), and Snowplow (analytics) user info. Use: personalization, analytics and ad targeting. (Lawful basis: consent for personalized advertising; legitimate interest for basic analytics depending on region.)
grow-faves:uid2:retryTime Persistent First-party storage used by the site’s personalization/growth module to store recent items, retry schedules for third-party syncs (LiveRamp, Publink, UID2), and Snowplow (analytics) user info. Use: personalization, analytics and ad targeting. (Lawful basis: consent for personalized advertising; legitimate interest for basic analytics depending on region.)
growme_version 30 minutes First-party storage used by the site’s personalization/growth module to store recent items, retry schedules for third-party syncs (LiveRamp, Publink, UID2), and Snowplow (analytics) user info. Use: personalization, analytics and ad targeting. (Lawful basis: consent for personalized advertising; legitimate interest for basic analytics depending on region.)
growMeSnowplowUserInfo Persistent First-party storage used by the site’s personalization/growth module to store recent items, retry schedules for third-party syncs (LiveRamp, Publink, UID2), and Snowplow (analytics) user info. Use: personalization, analytics and ad targeting. (Lawful basis: consent for personalized advertising; legitimate interest for basic analytics depending on region.)
guid Session Delta Projects ID cookie used for cross-site tracking and audience segmentation. Retention: Session.
i Session OpenX cookie that stores a unique user ID to enable real-time bidding, personalized ad delivery, and cross-site tracking.
ID 3650 days Used by Tapad for cross-device user identification.
id5 Session Used by ID5 to assign a unique identifier for advertising, enabling user recognition across domains and improving ad targeting.
id5id Persistent Stores a unique ID5 identifier for the user, used for ad personalization, audience targeting, and identity resolution across sites.
id5id_cached_consent_data Persistent Caches user consent information related to the ID5 identity service to ensure privacy preferences are respected.
id5id_cached_consent_data_exp Persistent Records the expiration time of cached consent data for ID5 to maintain compliance with consent frameworks.
id5id_cst Persistent Stores customer or consent state token used by ID5 to manage identity synchronization and advertising preferences.
id5id_exp Persistent Contains expiration metadata for ID5 user identifiers to manage ID lifetimes for ad personalization.
id5id_extensions Persistent Stores additional ID5-related data such as CDN or bounce handling, enabling ID synchronization and advertising efficiency.
id5id_last Persistent Records timestamp of the last ID5 synchronization event for accurate ID management and targeting.
id5id_privacy Persistent Stores ID5 privacy configuration and consent flags indicating whether the user has given consent for personalized advertising.
id5id_privacy_exp Persistent Defines expiration date for the stored ID5 privacy settings, ensuring consent data is refreshed periodically.
id5id_v2_* Persistent New version of ID5 identity cookie storing consent status and user ID for ad targeting.
IDE Session Google DoubleClick cookie used to deliver targeted ads, measure ad effectiveness, and prevent the same ad from being shown too many times.
IDSYNC 365 days Yahoo cookie used to track cross-site user IDs and synchronize them for analytics and advertising measurement.
iid 365 days Stores a unique InMobi ID for users to deliver personalized ads.
IIQthetradedeskCookieSync 30 days, 1 minutes Cookie syncing between IntentIQ and The Trade Desk. Aligns user IDs across platforms to enable cross-site advertising and measurement.
INGRESSCOOKIE Session PulsePoint cookie for session management and ad delivery tracking, enabling ad exchange transactions. Retention: Session.
intentIQ Session Primary IntentIQ identifier cookie. Used for unique user recognition across sites and devices, enabling targeting, cross-device linking, attribution, and measurement.
intentIQCDate Session Stores timestamp metadata associated with IntentIQ user identifiers, used for synchronization freshness and campaign measurement.
iq_r_key 15 days, 7 hours, 24 minutes Identifies returning users and supports targeted advertising and campaign measurement.
iq_u_key 15 days, 7 hours, 24 minutes Stores a unique user ID to support personalized ad targeting and frequency capping.
IQadv 400 days, 1 minutes Long-term cookie storing IntentIQ advertising identifiers for user profiling, cross-device recognition, frequency capping, and audience targeting.
IQAppnexusCookieSync Session Synchronizes identifiers with AppNexus (Xandr) to match users for targeted advertising and DSP bidding.
IQDatonicsCS Session Cookie sync with Datonics to enrich audience profiles and support behavioral advertising.
IQOpenxPrimisCookieSync Session Syncs user IDs with OpenX/Primis to facilitate ad bidding, targeting, and reporting.
IQPData Session Stores unique IntentIQ profile identifiers (timestamp + ID string) for audience segmentation, campaign measurement, and attribution.
IQPubmaticCookieSync Session Synchronizes identifiers with PubMatic to link IntentIQ IDs with PubMatic’s ecosystem for ad targeting.
IQRubiconCookieSync 30 days Syncs identifiers with Rubicon Project (Magnite) to enable participation in RTB auctions and measurement.
IQSmartAdServerCookieSync Session Syncs identifiers with Equativ (Smart AdServer) to align ad IDs and deliver targeted campaigns.
IQSovernCookieSync Session Synchronizes identifiers with Sovrn for advertising demand and reporting.
IQTripleLiftCookieSync Session Syncs IDs with TripleLift to deliver personalized ad placements and optimize bidding.
IQver Session Stores versioning data related to the IntentIQ identifier system to ensure accurate user matching.
IQYieldmoCookieSync Session Synchronizes IDs with Yieldmo to enable ad personalization and measurement.
IXAI79239 400 days, 1 minutes Long-term cookie used for audience measurement and attribution studies.
IXAI79297 479 days, 22 hours, 25 minutes Long-term cookie used for audience measurement and attribution studies.
KADUSERCOOKIE Session PubMatic cookie that stores a unique user ID for ad targeting, retargeting, and tracking ad interactions across websites.
KCCH Session PubMatic cookie used to confirm whether cookies can be set in the user’s browser (cookie-check helper for ad targeting).
khaos Persistent Assigns a unique user ID for ad targeting and frequency management. Persistent variant – allows recognition across browsing sessions.
khaos Session Assigns a unique user ID for ad targeting and frequency management. Session variant – valid only during a single browsing session.
khaos_p 365 days Persistent version of khaos, retains user ID for long-term targeting.
krm_r Session Assigns temporary identifiers for ad request routing and campaign delivery.
krm_usr Session Stores a unique user identifier for tracking and targeting in advertising systems.
KRTBCOOKIE_* Session Stores identifiers for real-time bidding (RTB) sessions, helping PubMatic and partners match user IDs for programmatic advertising.
ktcid 365 days Tracks users across devices for personalized advertising and analytics.
KTPCACOOKIE Session PubMatic cookie indicating whether the user’s browser supports PubMatic’s cookie syncing functionality for ad auctions.
li_gc Session Stores user consent for the use of LinkedIn cookies in compliance with GDPR.
li_gp Session Used for guest optimization and managing login status across LinkedIn services.
li_sugr Session Helps LinkedIn identify users outside their platform for analytics and advertising insights.
lidc Session Facilitates data routing from LinkedIn Share buttons and embedded content.
lidid Session Identifies users across sessions for personalized ad delivery and measurement.
ljt_reader Session Sovrn (Lijit) cookie that identifies returning visitors to improve personalized ad delivery and track campaign effectiveness.
lluid 29 days, 23 hours, 48 minutes Assigns a temporary identifier for internal tracking and analytics.
lluid 30 days Used by vdo.ai to deliver video ad targeting and analytics.
llum 365 days Stores user interaction timestamps to improve system performance and analytics.
lotame_domain_check Session E-Planning cookie used to verify domain associations for Lotame audience targeting, enabling segmentation and personalized advertising.
mako_uid Session Eyeota unique ID cookie to track users across sites for audience segmentation and targeted advertising. Retention: Session.
matchgoogle Session Syncs IDs with Google to support ad targeting across networks
mc Session Used by Quantcast to collect data on user behavior for audience insights.
mc 200 days Used to track ad performance and campaign analytics.
mediavine_pageview_session 30 days Tracks page views within a session for analytics and ad performance monitoring by Mediavine.
mlcwc 365 days Collects device and interaction data to personalize advertising and measure performance.
MR Session Microsoft Advertising (Bing Ads) cookie used to measure the effectiveness of ads, track user interactions, and support retargeting.
mtuid 180 days Tracking identifier used by DXTech for ad targeting and profiling. Retention: 180 days (mid-term profiling).
mtuid 180 days Assigns advertising identifier used in ad exchanges and retargeting.
MUID Session Microsoft Advertising cookie to identify unique users across Microsoft sites and partners, enabling targeted ads and conversion tracking. Retention: Session.
mv_session Persistent Stores Mediavine advertising session data to measure ad delivery and optimize ad targeting.
mv_tokens 14 days Tracking cookie for user session IDs across ad exchanges. Retention: 14 days.
mv_tokens Session Mediavine token for tracking session IDs for programmatic ads. Retention: Session.
mv_tokens 14 days User ID cookie for profiling and ad delivery across PubNation network. Retention: 14 days.
mv_tokens_eu-v1 14 days EU-specific tracking identifier used to support compliant ad targeting. Retention: 14 days.
mv_tokens_eu-v1 Session EU-specific Mediavine session token for targeted ad transactions. Retention: Session.
mv_tokens_eu-v1 14 days PubNation cookie for EU-compliant profiling and ad tracking. Retention: 14 days.
MV_UUID Persistent Unique visitor ID for ad targeting and measurement
MV_UUID 400 days Unique visitor ID for ad targeting and measurement
mxpim 731 days Stores campaign and user identifiers for ad attribution and targeting optimization.
nnls 60 days Used to limit ad exposure and maintain campaign delivery consistency.
obuid Session Outbrain cookie assigning a unique identifier to users for content recommendation personalization, targeted advertising, and performance measurement.
oo 7300 days Opt-out cookie that records if a user has opted out of targeted ads.
ope_fpid Persistent Stores a unique anonymous identifier used by OpenX for ad auctions and audience targeting.
opecloud_ctx Persistent Contains OpenX contextual data used to improve ad delivery and performance through contextual targeting.
OPTABLE_RESOLVED Persistent Stores data structure for unified ID resolution and syncing
OPTABLE_TIMESTAMPS Persistent Tracks timestamp info for ID resolution and sync logic
OPTABLE_VID Persistent Holds video ID mapping for ad measurement and sync
p_Amc_b 4 minutes Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
p_Amc_s 4 minutes Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
p_Amc_t 4 minutes Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
pamdt_t 365 days Similar to amdt_t, used to log timestamps and user interactions for marketing and ad delivery purposes.
pamuid2 365 days Persistent identifier for cross-session user recognition and ad targeting.
pamuid2 365 days Variant of pamuid2 cookie, used to uniquely identify users for personalized advertising and measurement of campaign reach.
pb_rtb_ev Session Tracks real-time bidding (RTB) events for ad auctions. Retention: Session.
pb_rtb_ev_part 365 days Persistent cookie used by PulsePoint to store partial RTB event data for profiling and optimization. Retention: 365 days (long-term profiling).
pbw Session Stores campaign or placement bidding values for ad delivery optimization (Equativ / Smartadserver).
pd Session OpenX cookie used to store user identifiers and session data for programmatic ad bidding, targeting, and frequency management.
pd_key 14 days, 1 minutes Stores internal tracking or security identifiers for Playdigo services.
pd_red 14 days Tracks redirects for service functionality and debugging.
pdid Session Stores a unique identifier for delivering targeted ads and audience measurement.
pi Session Stores PubMatic partner IDs (advertiser/partner mappings) to facilitate ad auctions and targeted ad delivery.
pid Session Stores a unique user ID for ad targeting and personalization (Equativ / Smartadserver).
PMFREQ_ON Session Tracks ad frequency to avoid showing the same advertisement too many times to the same user.
prebid.cookieTest Persistent Used to test whether the browser supports cookies for the Prebid.js header bidding framework.
psd_amuid2 365 days Persistent identifier cookie used by Monet Engine to track users for advertising and ad sync. Retention: 365 days (long-term profiling).
psd_amuid2 365 days Stores persistent ad identity data to facilitate cross-site user recognition.
psd_amuid2 365 days Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
PubMatic Persistent Main PubMatic consent and preference storage cookie, saving information such as timestamp, consent string, and campaign IDs for compliance and targeting.
pubsyncexp Session Cookie used to manage expiration time for PubMatic’s cookie sync, controlling when a new sync with partners should occur.
PugT Session Stores the last time PubMatic made a cookie update/sync request for the user, ensuring ID syncing happens periodically.
pux Persistent Stores campaign and partner mapping data for ad targeting and reporting.
pxrc 60 days Stores information about ad interactions for frequency capping and audience segmentation.
pxrc Session Tracks ad interactions to manage campaign exposure and attribution.
rc::h Persistent Maintains reCAPTCHA challenge integrity and security state
receive-cookie-deprecation 1 days, 5 hours, 54 minutes Used by TripleLift, a programmatic advertising platform, to manage identifiers for ad delivery, tracking, and measurement of campaign performance.
receive-cookie-deprecation 365 days Index Exchange cookie used in preparation for changes in browser cookie handling; helps maintain user ID management and targeted advertising capabilities.
receive-cookie-deprecation 180 days Google DoubleClick cookie used for testing and preparing for browser cookie restrictions, maintaining user ID management for ad targeting.
receive-cookie-deprecation 90 days, 1 minutes Used in relation to Google’s Privacy Sandbox and Chrome’s cookie phase-out, helps track and manage changes in cookie availability for PubMatic’s ad targeting.
receive-cookie-deprecation 90 days Tracks browser changes related to cookie handling for ad adaptation.
rlas3 Session Another ad interaction cookie for campaign analytics and frequency management.
rtbhouse-esp Persistent Stores RTB House user identifier for programmatic advertising and retargeting.
rud Session Stores user data string for profiling and delivering personalized ads.
ruds Session Session variant of rud, holding temporary user ad profile data.
s Session Stores internal settings or runtime flags needed for site operation or ad scripts.
sa-user-id Session Base user identifier for ad targeting, frequency, and attribution.
sa-user-id Session Base ID used by StackAdapt for user-based ad delivery and measurement.
sa-user-id Session Maintains user IDs for ad targeting and campaign measurement.
sa-user-id-v2 Session Stores user identifier for ad platforms to match and personalize ads.
sa-user-id-v2 Session Repeated — identifier for targeting in StackAdapt ecosystem.
sa-user-id-v2 Session Used by StackAdapt to track ad performance and personalize advertising.
sa-user-id-v3 Session Same as above, variant for updated session/user matching.
sa-user-id-v3 Session Variant of user ID for StackAdapt to connect user identity across sessions.
sa-user-id-v3 Session Used by StackAdapt to identify users and optimize ad delivery.
sc 200 days Stores site session data for analytics or personalization.
SCM Session Session-level cookie that supports ad decisioning logic or bidding.
SCM1001980 10 days, 12 hours, 2 minutes Used by Smaato to track ad attribution and manage ad serving.
SCMco 21 days Collects data on ad interactions for performance analytics.
sd_amuid2 365 days Unique advertising ID set by Monet Engine for user tracking across partner sites. Retention: 365 days (long-term profiling).
sd_amuid2 Session Session-level ID used for temporary ad-serving personalization.
sd_amuid2 365 days, 1 minutes Monet Engine cookies used to manage ad identifiers, sync across partners, optimize targeting, and maintain ad continuity.
sd-session-id Session Maintains session integrity and user state across page requests; helps manage temporary connections.
server_tracking_bdsp_uid 365 days Used for tracking ad impressions across domains.
SERVERID Session Eyeota cookie used for load balancing and routing user sessions across servers in ad exchanges. Retention: Session.
SEUNCY Session Used for profiling and segmenting users for targeted marketing.
SONATA_ID Session Used by TAPTAP Digital for ad delivery optimization.
sp 90 days Helps Quantcast track site usage and audience segmentation.
SPugT Session Variation of the PugT cookie, stores timestamp of the last cookie sync/update attempt to help PubMatic manage frequency of ID syncing with partners.
ss 365 days Session-tracking identifier used to log user behavior and support real-time bidding (RTB) for ads. Retention is 1 year, a long-term tracker.
ss Session Session cookie used by Between Exchange for temporary user session handling and ad request tracking.
ssh 730 days Synchronizes user identifiers across Sovrn and partner platforms for ad targeting and reporting.
ssi Session Stores a unique session identifier for ad delivery and frequency capping (Basis Global Technologies / SiteScout).
stx_user_id Session Identifies users in Sharethrough’s ad ecosystem to personalize and measure ads.
suid Session Unique ID used to deliver and control ads via Simpli.fi’s ad platform.
sw_user_params_infos Session Stores detailed user/parameter data for targeting and ad personalization.
sync Session Used by TripleLift to synchronize user identifiers across advertising exchanges for targeted advertising and campaign tracking.
sync3 90 days Set by TripleLift to synchronize user identifiers across advertising platforms, enabling targeted ad delivery, frequency capping, and campaign performance measurement.
SyncRTB4 90 days Used for real-time bidding (RTB) synchronization, helping PubMatic match user IDs across different advertising platforms for targeted ads.
TAPAD Persistent Syncs Tapad’s cross-device ID for personalized advertising
TAPAD Session Syncs Tapad’s cross-device ID for personalized advertising
TapAd_3WAY_SYNCS Session Syncs Tapad IDs across ad systems for retargeting.
TapAd_DID Session Stores device IDs for ad targeting.
TapAd_TS Session Contains timestamp for Tapad’s cross-device tracking.
TDCPM Session The Trade Desk cookie used to synchronize user identifiers with advertising partners for programmatic ad delivery and tracking.
TDID Session The Trade Desk cookie storing a unique user identifier to enable targeted advertising, retargeting, and campaign measurement.
test_cookie* 15 minutes Google DoubleClick cookie used to test whether the user’s browser accepts cookies, helping with proper ad delivery.
TEST-COOKIE 365 days Test cookie from InMobi to check if a user’s browser accepts cookies for advertising.
TestIfCookieP Session Test cookie set by Smartadserver to check if the browser accepts cookies.
TID 228 days, 16 hours, 15 minutes Unique tracking ID used for audience research and campaign effectiveness measurement.
tluid Session TripleLift cookie storing a unique user ID to enable ad targeting, frequency capping, and reporting.
tluidp 90 days Persistent TripleLift user ID cookie used to recognize returning users for ad delivery and measurement.
tr 365 days Tracks conversions and user behavior to measure advertising effectiveness.
ts Session Timestamp cookie used by RTB House to log ad delivery times and measure campaign performance. Retention: Session.
tt_viewer Session Enables ad performance tracking for Teads video ads.
tuid 365 days Tracking identifier used to recognize users across visits, primarily for ad targeting and campaign optimization.
tuuid 730 days BidSwitch cookie assigning a persistent unique ID to recognize users across websites and deliver targeted advertising.
tuuid Session Stores a temporary unique identifier for targeted advertising and real-time bidding (Improve Digital).
tuuid Session Persistent identifier for cross-session tracking and targeted ad delivery within Between Exchange’s platform.
tuuid Session Unique user ID assigned by Platform161 to track users across partner sites and deliver personalized ads. Retention: Session.
tuuid 730 days Assigns a unique ID to recognize users and measure campaign reach and effectiveness.
tuuid Session Stores a unique visitor ID for cross-site ad measurement and optimization.
tuuid_lu 365 days BidSwitch cookie recording the last update time of the user ID, helping ensure accuracy and freshness of targeted advertising data.
tuuid_lu Session Last update timestamp for tuuid, used to track when the identifier was last refreshed (Improve Digital).
tuuid_lu Session Records the last update timestamp of the tuuid cookie to manage user profiles. Retention: Session.
tuuid_lu 730 days Stores timestamp of last user sync to manage ad targeting frequency and validity.
tuuid_lu Session Logs the last synchronization event for audience matching accuracy.
ud Session Stores Nielsen user data string for audience analytics and measurement across platforms. Retention: Session.
uid Session Adform cookie that assigns a unique user ID to enable personalized ads, retargeting, and measurement of ad performance.
uid Session Criteo cookie that assigns a unique user identifier to deliver targeted ads and track conversions across websites.
UID Session Opera browser cookie that stores a unique user identifier for managing personalization and browser-specific settings across sessions.
uid Session Assigns a persistent unique identifier to track users across websites and devices for ad targeting (Nexxen / Turn).
uid 30 days Persistent identifier used by Admatic to recognize returning users and deliver targeted advertisements.
UID Session Cookie used to identify video ad viewers, measure ad impressions, and ensure correct ad delivery.
UID 365 days Unique CognitivLabs identifier used to profile users and deliver AI-driven targeted ads. Retention is 1 year, which signals long-term profiling.
UID Session Stores user identifiers to maintain session state and recognize returning visitors.
UID Session Used by Comscore to measure site visits, audience behavior, and performance.
uid 366 days Stores persistent user identifier for tracking and personalized ad delivery.
uid 90 days Identifies users for ad targeting by Clearnview’s ad network.
uids Session Xandr cookie storing user IDs in a JSON object to support user recognition across platforms for personalized advertising and measurement.
uids Session Stores user ID and related metadata for PubMatic’s ad targeting.
uids 182 days Stores unique user IDs for cross-site tracking and audience targeting (Yahoo).
uids 90 days, 1 minutes Contains multiple advertising identifiers for cross-domain tracking and audience profiling.
UserID1 Session Set by ADITION (Virtual Minds GmbH) to store a unique user identifier for ad targeting, frequency capping, and performance reporting.
usp_status Session Media.net cookie that records the user’s privacy and consent status for compliance with U.S. privacy regulations and to guide ad targeting.
usprivacy Session Stores user privacy preferences and opt-out choices under the US Privacy (CCPA) framework.
ut Session Session-level cookie used for user identification during ad auctions and bid requests.
utm_campaign Session Tracks marketing campaign name from URL parameters for analytics attribution.
utm_source Session Tracks traffic source (e.g., Google, Facebook) from URL parameters for analytics attribution.
uuid Session MediaMath cookie that stores a unique user ID to enable targeted advertising, audience segmentation, and attribution across sites.
uuid 364 days, 23 hours, 54 minutes Unique identifier used to track users across websites for advertising and campaign measurement. Retention is nearly 1 year, which may be considered long-term profiling under GDPR.
uuid 90 days Used by Innovid to assign a unique ID for video ad delivery and measurement.
uuid2 Session Xandr cookie assigning a unique user ID for real-time bidding, targeted advertising, and measurement of campaign performance.
V Session Session-level identifier used by PulsePoint for user recognition during ad delivery. Retention: Session
v_red 15 days, 9 hours, 32 minutes Cookie used by Evolution.ai for redirect tracking and campaign measurement. Retention: 15 days (short-term profiling).
v_usr 14 days Persistent user identifier cookie for profiling and ad targeting. Retention: 14 days.
vidoomy-uids Session Assigns unique ad IDs for cross-site targeting and ad personalization
viewer_token Session LoopMe cookie used to identify users across ad impressions for video/mobile advertising. Retention: Session.
visitor-id Session Media.net cookie assigning a visitor identifier to deliver relevant advertising and measure campaign effectiveness.
VP 360 days Persistent identifier used by PulsePoint to store user profiles and preferences for targeted ads. Retention: 360 days (long-term profiling).
vst Session GumGum cookie to track ad views and measure engagement with contextual ads. Retention: Session.
wfivefivec Session Supports Roku’s ad network targeting by linking user identifiers
XANDR_PANID 90 days Set by Xandr (Microsoft) to store a pseudonymous user identifier for programmatic ad delivery, cross-site tracking, and audience segmentation.
XID 30 days, 17 hours, 24 minutes Persistent identifier used to link user activity across sites for analytics.
yieldmo_id Session Stores unique identifier for ad targeting and frequency capping by Yieldmo.
ym_user_cookie 360 days Stores user identifier for personalized advertising and measurement by YMMobi.
zc Session Stores Zeotap user ID used for audience segmentation and targeted advertising.
zsc Session Used by Zeotap to link multiple sessions for the same user and improve audience recognition.
zuid Session Assigns a unique user ID for ad targeting and delivery optimization (Zemanta / Outbrain).
zuuid Session Assigns a unique user identifier for cross-session ad correlation.
zuuid_k Session Variants of the user ID cookie to track syncing or update timestamps.
zuuid_k_lu Session Variants of the user ID cookie to track syncing or update timestamps.
zuuid_lu Session Variants of the user ID cookie to track syncing or update timestamps.
zync-uuid Session Synchronizes user ID across ad systems for unified targeting and measurement.
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