Cookie List
A cookie is a small piece of data (text file) that a website – when visited by a user – asks your browser to store on your device in order to remember information about you, such as your language preference or login information. Those cookies are set by us and called first-party cookies. We also use third-party cookies – which are cookies from a domain different than the domain of the website you are visiting – for our advertising and marketing efforts. More specifically, we use cookies and other tracking technologies for the following purposes:
Targeting Cookies
Targeting cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.
| Cookie name | Cookie purpose | Cookie vendor |
|---|---|---|
| ttcsid | TikTok Ads session-tracking cookie, assigning a unique session ID to users who click TikTok ads for attribution of conversions. | TikTok |
| YSC | YouTube session cookie used to track video views on embedded players. | Google (YouTube) |
| _gcl_au | Google Ads cookie used for experimenting with advertisement efficiency across sites. | Google Ads |
| bcookie | LinkedIn browser-identifier cookie used for tracking/targeting when LinkedIn widgets are embedded. | |
| _fbp | Used by Meta to deliver and measure advertising, including real-time-bidding retargeting. | Meta (Facebook) |
| MR | Microsoft Bing Ads cookie used for ad measurement and retargeting. | Microsoft (Bing Ads) |
| MUID | Unique user-identifier cookie used across Microsoft/Bing properties for ad tracking. | Microsoft (Bing) |
| FPAU | Google’s first-party version of the ad-click linker cookie, used to collect user activity for analytics and reporting. | |
| growSumoPartnerKey | First-party cookie storing the affiliate partner’s unique key. | PartnerStack |
| nQ_cookieId | Albacross lead-identification cookie used for B2B visitor tracking and ad targeting. | Albacross |
| __Secure-YEC | YouTube cookie supporting ad personalization using aggregated Google profile data. | Google (YouTube) |
| __obref | Stores a randomly generated browser identifier used to measure and deduplicate ad conversions across page views. | OpenAI (ChatGPT Ads) |
| __oaiq_domain_probe | Detects the correct root domain for accurate user tracking and attribution by the embedded advertising SDK. | OpenAI |
| gsxid | Unique ID referencing a click event through a partner referral link (older naming). | PartnerStack |
| _plantrack | Identifies the user for activity tracking via the embedded CRM tool. | Planhat |
| FPLC | Google’s first-party cross-domain linker cookie. | |
| csrftoken | Prevents cross-site request forgery on embedded Instagram content; also supports analytics, personalization, and advertising. | Instagram (Meta) |
| _tt_enable_cookie | Collects data about behavior and purchases to measure and optimize the effect of advertising. | TikTok |
| lidc | LinkedIn routing cookie used for tracking/targeting when LinkedIn widgets are embedded. | |
| GCL_AW_P | Real-time-bidding advertising-exchange cookie. | Google (DoubleClick) |
| ttwid | Used for advertising and analytics on embedded TikTok content. | TikTok |
| VISITOR_INFO1_LIVE | YouTube cookie used to estimate bandwidth and personalize the embedded video player. | Google (YouTube) |
| _uetsid | Microsoft Advertising session identifier used to determine relevant ads to show. | Microsoft Advertising (Bing Ads) |
| _gac_UA-83050766-5 | Stores ad-click (gclid) data for Google Ads conversion tracking; the number is Brevo’s own UA property ID. | Google Ads |
| test_cookie | Tests whether the browser supports cookies for the real-time-bidding advertising exchange. | Google (DoubleClick) |
| _gat_UA-XXXXXX-X | Throttles the request rate to the Google Analytics service. | Google Analytics |
| ps_xid | Unique ID referencing a click event through a partner referral link. | PartnerStack |
| _reb2bloaded | Tracks whether a page/content has loaded, used for ad-campaign segmentation and visitor identification. | RB2B (Reb2b) |
| ttcsid_XXXXXXXXXXXXXXXXXXXXCategory | Tracks visitor activity on TikTok’s platform, including interaction with embedded services. | TikTok |
| __cf_bm | Cloudflare Bot Management cookie supporting bot-mitigation for embedded third-party tools. | Cloudflare |
| IDE | Advertising-exchange cookie used for ad targeting and retargeting. | Google (DoubleClick) |
| _ttp | Used for tracking and ad personalization. | TikTok |
| cf_chl_rc_ni | Cloudflare cookie used internally to identify production issues on clients. | Cloudflare |
| li_gc | LinkedIn cookie used to store consent-related tracking preferences. | |
| _rdt_uuid | Used for tracking embedded video views and the performance of advertisements. | |
| _GRECAPTCHA | reCAPTCHA cookie used to distinguish humans from bots on forms. | Google (reCAPTCHA) |
| SRM_B | Microsoft Bing Ads cookie used for ad measurement and retargeting. | Microsoft (Bing Ads) |
| __Secure-YNID | YouTube cookie aggregating profile data across Google services to display targeted ads. | Google (YouTube) |
| ajs_anonymous_id | Anonymous visitor ID used for analytics tracking via the embedded Loom video tool. | Loom |
| _gcl_aw | Google Ads cookie used for experimenting with ad efficiency and for attributing affiliate commission on referral clicks. | Google Ads |
| _gcl_gs | Stores ad-click information for Google conversion tracking. | |
| FPGCLAW | Google’s first-party version of the AdWords linker cookie, used to attribute affiliate commission on referral clicks. | |
| nQ_userVisitId | Sets a unique ID for a specific visitor, used for re-recognition and cross-site marketing tracking. | Albacross |
| msToken | Used for advertising and analytics on embedded TikTok content. | TikTok |
| __Secure-ROLLOUT_TOKEN | YouTube cookie aggregating profile data across Google services to display targeted ads. | Google (YouTube) |
| VISITOR_PRIVACY_METADATA | YouTube cookie aggregating profile data across Google services to display targeted ads. | Google (YouTube) |
| _gat_gtag_UA_83050766_5 | Google Analytics cookie tied to Brevo’s UA property, used to throttle the request rate. | Google Analytics |
Performance Cookies
Performance cookies help us understand how visitors use Brevo.com — which pages are useful, where people get stuck, and what to improve — so we can build a better product for you and everyone who visits after you. Data is aggregated and never used to identify you personally.
| Cookie name | Cookie purpose | Cookie vendor |
|---|---|---|
| ekfls-2025-03-27 | Helps maintain data for the API reference/documentation support page. | ReadMe |
| _ga | Distinguishes unique visitors for Google Analytics reporting. | Google Analytics |
| _ga_xxxxxxxxxx | Google Analytics 4 cookie holding session state for a specific GA4 property. | Google Analytics (GA4) |
| _gid | Google Analytics cookie storing a per-page unique value used for session analytics. | Google Analytics |
| _clck | Microsoft Clarity cookie connecting multiple page views into a single session recording. | Microsoft Clarity |
| ABTastySession | Tracks a visitor’s session and behavior for A/B-testing and personalization statistics. | AB Tasty |
| ABTasty | Records the visitor’s experience and performance metrics to conduct A/B tests and improve the user experience. | AB Tasty |
| visitorId | Identifies visitors on the site with a custom unique identifier. | Adobe Analytics |
| _uetvid | Microsoft Advertising cookie used to re-engage visitors who previously visited the site. | Microsoft Advertising (Bing Ads) |
| fs_uid | Captures user interactions on the site for analytics and user-experience improvement purposes. | FullStory |
| _reb2buid | Stores a unique visitor ID for the embedded B2B visitor-identification tool. | RB2B (Reb2b) |
| amplitude_testbrevo.com | Temporary placeholder cookie verifying the browser accepts cookies; deleted immediately after. | Amplitude |
| _clsk | Connects multiple page views by a visitor into a single Microsoft Clarity session recording. | Microsoft Clarity |
| FPGSID | Google first-party cookie used to register statistical data on visitor behavior. | |
| ph_phc_nQp2LHBNr2FYxDzLpDmY VN7NraM2gjPZJtUTnSgCbX4L_posthog_cpm | Session cookie identifying and tracking visitors for product analytics. | PostHog |
| dmn_chk_-xxxxxxxxxxxx | Analytics cookie supporting PostHog visitor tracking. | PostHog |
| fs_lua | Captures the timestamp of the last user action, supporting the FullStory session lifecycle and behavior reports. | FullStory |
| first_referrer | Internal cookie likely recording the referrer that first brought the visitor to the site. | Brevo (first-party) |
| _vwo_uuid_v2 | Ensures a visitor always sees the same version of a page and tracks behavior to measure page-variation performance. | Visual Website Optimizer (VWO) |
| amplitude_id_46f5e53b3cbb 551bf03c2812fcc078efbrevo.com | Analytics cookie used to understand how the site is used. | Amplitude |
| ph_phc_FLSpiXB7aDMlA1BOEYveAb LvxOoU8kZjkj5ODUiqj0D_posthog_cpm | Session cookie identifying and tracking visitors for product analytics, via the embedded Papermark app. | PostHog |
| FPID | Stores a value used to set the Client ID for requests to Google’s servers for web analytics. | |
| ph_phc_CASZBDbkZhmY5TPwHiJXZG7 RtP2BHhv8qEMXNmJLosE5_posthog_cpm | Session cookie identifying and tracking visitors for product analytics. | PostHog |
| readme_library | Remembers the visitor’s preferred code library/version in the API documentation. | ReadMe |
Functional Cookies
Functional cookies remember your choices — like language, region, or saved preferences — and power embedded tools such as live chat, video, or scheduling widgets on our pages. They make your return visits smoother and some third-party features work correctly. If you decline, the core site still works, but some of these conveniences and embedded tools may not.
| Cookie name | Cookie purpose | Cookie vendor |
|---|---|---|
| _help_center_session | Session cookie supporting the Zendesk-powered help center. | Zendesk |
| nQ_cookieId | Identifies a B2B visitor’s session for lead identification and ad targeting. | Albacross |
| vuid | Identifies the visitor across embedded Vimeo video sessions. | Vimeo |
| ABTastyDomainTest | Technical cookie validating the domain for the AB Tasty A/B-testing and personalization script. | AB Tasty |
| exp | Cookie associated with A/B tests, used to combine or change on-site content to find the best-performing variation. | Brevo (first-party) |
| _reb2bsessionID | Identifies and maintains the visitor’s session for the embedded B2B visitor-identification tool. | RB2B (Reb2b) |
| cf_clearance | Verifies the visitor is not a bot, confirming a Cloudflare challenge was solved successfully. | Cloudflare |
| SM | Microsoft Clarity cookie providing insights into user behavior and website performance. | Microsoft Clarity |
| __cf_bm | Cloudflare Bot Management cookie supporting the bot-mitigation service of the embedded third-party tools. | Cloudflare |
| __Host-psifi.analyticsTrace | Supports analytics tracing for the embedded Loom video tool. | Loom |
| MR | Microsoft Clarity cookie providing insights into user behavior and website performance. | Microsoft Clarity |
| ANONCHK | Microsoft Clarity cookie providing insights into user behavior and website performance. | Microsoft Clarity |
| ajs_anonymous_id | Anonymous visitor ID used for analytics tracking via the embedded Loom video tool. | Loom |
| localization | Stores the visitor’s language/region preference. | Brevo (Sendinblue) |
| GCLB | Google Cloud Load Balancer’s session-affinity cookie, via the embedded Atlassian tool. | Google Cloud (via Atlassian) |
| __Host-psifi.analyticsTraceV2 | Supports analytics tracing (v2) for the embedded Loom video tool. | Loom |
| _reb2bgeo | Stores the visitor’s geographical location for the embedded B2B visitor-identification tool. | RB2B (Reb2b) |
| loom_anon_comment | Supports anonymous commenting functionality on embedded Loom videos. | Loom |
| readme_language | Stores the visitor’s preferred documentation language. | ReadMe |
| player | Remembers embedded Vimeo video player settings. | Vimeo |
| _dd_s | Real User Monitoring session cookie supporting the embedded Vimeo player’s performance monitoring. | Datadog (via Vimeo) |
| amplitude_cookie_test | Temporary placeholder cookie verifying the browser accepts cookies; deleted immediately after. | Amplitude |
| MUID | Unique user-identifier cookie used with Microsoft Clarity for behavior analytics. | Microsoft Clarity |
Strictly Necessary Cookies
Strictly necessary cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.
| Cookie name | Cookie purpose | Cookie vendor |
|---|---|---|
| __cf_bm | Cloudflare Bot Management cookie; encrypted score/session data used to detect and mitigate automated traffic. | Cloudflare |
| OptanonConsent | Stores the visitor’s cookie-consent choices so the banner isn’t shown again on return visits. | OneTrust |
| userTimeZone | Stores the visitor’s time zone for correctly displaying dates and times in the app. | Brevo (first-party) |
| seeAllFeaturesVertical | Internal cookie controlling display of the full features list on the pricing page. | Brevo (first-party) |
| wordpresspass_XXXX XXXXXXXXXXXXXXXXXXXXXXXX | Maintains a user’s login status while navigating the WordPress-powered corporate site. | WordPress (self-hosted) |
| anonymous_id | Anonymous visitor ID used for session and cross-visit identification. | Brevo (first-party) |
| wordpress_test_cookie | Tests whether the visitor’s browser has cookies enabled. | WordPress (self-hosted) |
| wordpress_sec_ed05c4e33e 402dde8bede9e8296cd0f8 | WordPress admin “logged-in” security cookie, generated dynamically per session. | WordPress (self-hosted) |
| AWSALB | AWS load-balancer session-stickiness cookie, routing requests to the same backend server. | AWS (via PartnerPage) |
| country | Stores the visitor’s detected country for correct site functionality. | Brevo (first-party / Sendinblue) |
| ph_phc_nQp2LHBNr2FYxDzLpDmY VN7NraM2gjPZJtUTnSgCbX4L_posthog | Session cookie identifying and tracking visitors for product analytics. | PostHog |
| wp-settings-time-X | Customizes the WordPress admin interface view for the logged-in user. | WordPress (self-hosted) |
| wordpress_logged_in_XXXX XXXXXXXXXXXXXXXXXXXXXXX | Indicates a visitor is logged into the WordPress backend and identifies which user. | WordPress (self-hosted) |
| __Host-next-auth.csrf-token | Prevents cross-site request forgery during the sign-in flow. | Brevo (first-party, NextAuth.js) |
| FPGCLGS | Google’s first-party linker cookie, used for ad-click security/performance verification and CDN trust checks. | |
| ph_phc_CASZBDbkZhmY5TPwHi JXZG7RtP2BHhv8qEMXNmJLosE5_posthog | Session cookie identifying and tracking visitors for product analytics. | PostHog |
| slim_session | Default session-cookie name used if the Slim PHP framework is running on this subdomain. | Brevo (first-party) |
| wordpress_XXXXXXXXX XXXXXXXXXXXXXXXXXXX | Authenticates logged-in WordPress visitors. | WordPress (self-hosted) |
| pricing_version | Ensures the visitor sees a consistent pricing-page version during their session. | Brevo (first-party / Sendinblue) |
| ph_phc_yQgAEdJJkVpI24NdSRID2m or1x1leRpDoC9yZ9mfXal_posthog | Session cookie identifying and tracking visitors for product analytics. | PostHog |
| wp-postpass_XXXXXXXXXX XXXXXXXXXXXXXXXXXX | Grants access to a password-protected WordPress post once the correct password is entered. | WordPress (self-hosted) |
| cookiecookie | Manages session authentication for the embedded Papermark document-sharing app. | Papermark |
| __test__ | Technical cookie from a Beacon API/Google Tag Manager integration ensuring reliable data delivery as a page session ends. | Google Tag Manager |
| pricing_v4 | Internal cookie ensuring the visitor sees the correct pricing-page version. | Brevo (first-party) |
| tmpl_lang | Stores the visitor’s selected template/site language. | Brevo (first-party / Sendinblue) |
| X-CSRF-TOKEN | Prevents cross-site request forgery (CSRF) on the embedded Apollo.io tool. | Apollo.io |
| _leadgenie_session | Unique session ID mapping the visitor to a company/individual profile via the embedded Apollo.io tool. | Apollo.io |
| ph_phc_FLSpiXB7aDMlA1BOEYveAb LvxOoU8kZjkj5ODUiqj0D_posthog | Session cookie identifying and tracking visitors for product analytics. | PostHog |
| _cfuvid | Cloudflare cookie distinguishing individual users sharing the same IP address under Rate Limiting Rules. | Cloudflare |
| __tld_test__ | Technical cookie testing whether the current domain is a top-level domain, tied to a Beacon API/GTM integration. | Google Tag Manager |
| wp-settings- | Customizes the WordPress admin/site interface based on user settings. | WordPress (self-hosted) |
| pscd | Cookie associated with Pipedrive, used as a strictly necessary cookie. | Pipedrive |
| geo_country | Sets the visitor’s geographic location for an embedded internal marketing tool. | Brevo (via Netlify-hosted tool) |
| cb_seen | Records that the visitor dismissed the cookie notice, from a generic cookie-alert script. | Cookie-notice script (unbranded) |
| cookietest | Generic first-party test checking whether the visitor’s browser accepts cookies. | Brevo (first-party) |
| chatbase_anon_id | Maintains anonymous session state for the embedded Chatbase AI chatbot widget. | Chatbase |
| AWSALBCORS | AWS load-balancer cookie variant supporting CORS-enabled requests for session stickiness. | AWS (via PartnerPage) |
| OptanonAlertBoxClosed | Records that the visitor has closed the cookie notice, so it isn’t shown again. | OneTrust |
| wordpressuser_XXXXXXXXXX XXXXXXXXXXXXXXXXXXX | Stores WordPress user authentication details as part of session management. | WordPress (self-hosted) |
| ps_partner_key | Base64-encoded partner key identifying the referring affiliate. | PartnerStack |
| GCLB | Google Cloud Load Balancer’s session-affinity cookie, via the embedded Statsig tool. | Google Cloud (via Statsig) |
| __Secure-next-auth.callback-url | Stores the callback URL for the sign-in flow and helps detect spam. | Brevo (first-party, NextAuth.js) |