Cookie / storage
_shopify_marketing
Duration
1 year
Description
Stores marketing data used by Shopify storefront and checkout services.
Cookie / storage
Google Ads: _gcl_au, _gcl_*, _gac_*; _gcl_ls (localStorage); IDE, id, DSID, test_cookie (doubleclick.net)
Duration
Varies by record, feature and browser
Description
Measures advertising conversions. Click-related records appear only when applicable; expiry varies by record and browser.
Cookie / storage
Microsoft UET: _uetsid, _uetvid, _uetmsclkid, MUID; _uetsid_exp, _uetvid_exp (localStorage)
Duration
Session ID: 1 day; visitor ID: 13 months; other records vary
Description
Stores visitor, session and advertising-click identifiers for conversion attribution.
Cookie / storage
Meta: _fbp, _fbc; lastExternalReferrer, lastExternalReferrerTime (localStorage)
Duration
Cookies: 90 days; localStorage until cleared
Description
Supports advertising attribution and conversion measurement; click and referrer records depend on the visit.
Cookie / storage
TikTok: _tt_enable_cookie, _ttp, ttcsid, ttcsid_*, ttclid, _pangle; tt_sessionId, tt_pixel_session_index, tt_appInfo (sessionStorage)
Duration
Up to 13 months; sessionStorage for the tab session
Description
Measures TikTok advertising and conversions. Records vary by pixel, advertising link and enabled features.
Cookie / storage
LinkedIn: li_gc, li_mc, bcookie, bscookie, lidc, li_fat_id, li_sugr, UserMatchHistory, AnalyticsSyncHistory, lms_ads, lms_analytics, JSESSIONID, lang, sdsc; li_adsId (localStorage)
Duration
24 hours to 1 year; Ads ID: 6 months
Description
Supports LinkedIn conversion attribution, audiences and provider preferences; availability depends on region and settings.
Cookie / storage
Microsoft Clarity: _clck, _clsk, CLID, ANONCHK, MR, MUID, SM, SRM_B; _cltk (sessionStorage)
Duration
Varies by record, feature and browser
Description
Connects page views and interactions for Clarity analysis; this integration uses the advertising category.
Cookie / storage
Pinterest: _pin_unauth, _epik, _derived_epik, _pin_aem, _pinterest_ct_ua
Duration
1 year
Description
Links advertising visits and conversions. Additional matching records depend on settings.
Cookie / storage
Klaviyo / Shopify: shopify_client_id
Duration
1 year
Description
Stores a Shopify browser identifier used by the Klaviyo Shopify pixel. Created when analytics and advertising are allowed.
Cookie / storage
ChatGPT Ads: __oppref
Duration
30 days
Description
Stores advertising click attribution; a new non-empty oppref parameter refreshes the lifetime.
Cookie / storage
ChatGPT Ads: __obref
Duration
1 year
Description
Stores a random browser reference for advertising measurement.
Cookie / storage
ChatGPT Ads: oaiq_cs:* (sessionStorage)
Duration
Browser tab or service session
Description
Keeps per-pixel SDK state for the current browser tab.
Cookie / storage
Reddit / Shopify: _rdt_uuid, _rdt_cid
Duration
90 days
Description
Stores Reddit browser and click identifiers when the Shopify integration enables them.
Cookie / storage
Reddit / Shopify: _rdt_em, _rdt_pn
Duration
90 days
Description
Stores advertising matching state only when email or phone matching is configured.
Cookie / storage
Cloudflare: __cf_bm, _cfuvid (.bzrcdn.openai.com / .linkedin.com)
Duration
__cf_bm: 30 minutes of inactivity; _cfuvid: session
Description
Protects optional advertising-provider requests from bots and abuse; it does not make the advertising service essential.
Cookie / storage
Google / YouTube / Maps: __Secure-BUCKET, __Secure-ENID, __Secure-YEC, __Secure-YNID, __Secure-YENID, __Secure-ROLLOUT_TOKEN, SEARCH_SAMESITE, NID, YSC, PREF, VISITOR_INFO1_LIVE, VISITOR_PRIVACY_METADATA, SOCS
Duration
Varies by record, feature and browser
Description
Embedded YouTube videos and Google Maps may store security, preference, analytics and advertising state. Both load only after advertising consent.
Cookie / storage
Stape: cee (capig.stape.at), _gtmeec, gtmeec
Duration
Varies by record, feature and browser
Description
Observed with the conversion gateway. Its exact use depends on the installed tracking configuration.
