_uetsid – Microsoft employs this cookie to track visitors across multiple websites, aiming to display advertisements that align with the visitor’s preferences. It is a persistent cookie in HTML format.
_uetsid_exp – Microsoft includes this cookie to indicate the expiration date of the _uetsid cookie. It remains persistent in HTML format.
_uetvid – Similar to _uetsid, Microsoft uses this for tracking visitors across various websites to provide relevant ads based on user preferences. This is also a persistent HTML cookie.
_uetvid_exp – This persistent HTML cookie by Microsoft holds the expiration date for the _uetvid cookie.
MR [x2] – Microsoft uses this cookie to follow visitors across multiple websites, facilitating the delivery of relevant advertisements. It has a lifespan of 7 days and is an HTTP cookie.
MSPTC – Microsoft’s cookie here registers visitor data, which is then utilized to enhance the relevance of advertisements. It lasts for 1 year as an HTTP cookie.
MUID [x2] – This widely recognized Microsoft cookie serves as a unique user ID. By synchronizing the ID across Microsoft domains, it enables user tracking. It’s valid for 1 year as an HTTP cookie.
SRM_B – Microsoft tracks user interactions with the website’s search bar function through this cookie. The collected data helps in offering users pertinent products or services. It’s a 1-year HTTP cookie.
v2/tracker – Brightcove’s cookie is used in relation to video-advertising. It restricts how often a user sees the same advertisement and ensures the ad’s relevance to the user. This is a session pixel.
ANONCHK – Microsoft’s cookie registers data on visitors from multiple visits and websites, aiding in gauging the efficiency of ads on websites. It’s a 1-day HTTP cookie.
SM – Microsoft’s cookie registers a unique ID that recognizes the user’s device during return visits on websites sharing the same ad network. It is used for targeted ads and is a session HTTP cookie.
lastExternalReferrer – Meta Platforms, Inc. detects the user’s path to the website by recording their last URL address. It is a persistent HTML cookie.
lastExternalReferrerTime – Also from Meta Platforms, Inc., this persistent HTML cookie captures the user’s path to the website by recording their last URL address.
__lt__cid – d.line-scdn.net collects data on the user’s site visits, such as the frequency of return visits and page interactions. Its purpose is to serve targeted ads and it persists in HTML format.
IDE – Google’s cookie, used by Google DoubleClick, registers and reports the user’s actions post-ad viewing or clicking, measuring ad efficacy and providing targeted ads. It lasts for 1 year as an HTTP cookie.
pagead/landing – Google collects visitor behavior data from multiple websites to present more relevant ads. It also helps limit ad repetition. This is a session pixel.
_fbp – Used by Facebook, this cookie delivers various advertisement products, like real-time bidding from third-party advertisers. It has a 3-month lifespan as an HTTP cookie.
_gcl_au – Google AdSense uses this cookie to test ad efficiency across different websites. It remains active for 3 months as an HTTP cookie.
ads/ga-audiences – Google AdWords uses this cookie to re-engage visitors likely to convert to customers based on their online behavior. It is a session pixel.
_ldbrbid – Line’s cookie presents users with relevant content and ads through third-party ad hubs that facilitate real-time bidding. It lasts for 400 days as an HTTP cookie.
bcookie – LinkedIn uses this cookie for tracking the use of embedded services. It’s a 1-year HTTP cookie.
1/i/adsct [x2] – Twitter Inc. collects user behavior and interaction data to optimize the website and make ads more relevant. It is a session pixel.
muc_ads – Twitter Inc. uses this cookie to collect data on user behavior and interaction, aiming to optimize the site and tailor ads. It has a 400-day lifespan as an HTTP cookie.
guest_id – Twitter Inc. collects data on user website visits, such as visit count, average duration, and page views, to personalize and improve Twitter services. The cookie lasts for 400 days as an HTTP cookie.
guest_id_ads – Twitter Inc. gathers information on user behavior across multiple websites to optimize ad relevance. It remains active for 400 days as an HTTP cookie.
guest_id_marketing – Similar to guest_id_ads, this cookie by Twitter Inc. optimizes ad relevance based on user behavior on multiple websites. It’s a 400-day HTTP cookie.
i/jot – This cookie by Twitter Inc. sets a unique ID for visitors, allowing third-party advertisers to target them with relevant ads. It is a session pixel provided by third-party ad hubs.
i/jot/embeds – Twitter Inc.’s cookie sets a unique ID for the visitor, enabling targeting with relevant ads. This pairing service is provided by third-party ad hubs. It is a session pixel.
RichHistory – Twitter Inc. collects data on visitors’ preferences and behaviors on the website to tailor content and ads to the visitor. It’s a session HTML cookie.
LAST_RESULT_ENTRY_KEY [x2] – YouTube uses this cookie to track user interaction with embedded content. It is a session HTTP cookie.
nextId [x2] – YouTube tracks user interaction with embedded content through this cookie. It is a session HTTP cookie.
requests [x2] – YouTube uses this cookie to track user interaction with embedded content. It is a session HTTP cookie.
yt.innertube::nextId [x2] – YouTube registers a unique ID with this cookie to keep statistics on which videos the user has seen. It is a persistent HTML cookie.
ytidb::LAST_RESULT_ENTRY_KEY [x2] – YouTube tracks user interaction with embedded content using this persistent HTML cookie.
YtIdbMeta#databases [x2] – YouTube uses this cookie to track user interaction with embedded content. It is a persistent IDB.
#-# – YouTube has a pending session HTML cookie.
iU5q-!O9@$ – YouTube registers a unique ID with this cookie to keep statistics on which videos the user has seen. It is a session HTML cookie.
LogsDatabaseV2:V#||LogsRequestsStore – YouTube has a pending persistent IDB.
remote_sid – Necessary for YouTube video-content functionality on the website, this cookie is a session HTTP cookie.
ServiceWorkerLogsDatabase#SWHealthLog – Essential for YouTube video-content functionality on the site, this is a persistent IDB.
TESTCOOKIESENABLED – YouTube uses this cookie to track user interaction with embedded content. It lasts for 1 day as an HTTP cookie.
VISITOR_INFO1_LIVE – YouTube tries to estimate the user’s bandwidth on pages with integrated videos through this cookie. It has a 180-day lifespan as an HTTP cookie.
VISITOR_PRIVACY_METADATA – YouTube stores the user’s cookie consent state for the current domain for 180 days as an HTTP cookie.
YSC – YouTube registers a unique ID with this cookie to keep statistics on which videos the user has seen. It is a session HTTP cookie.
yt.innertube::requests – YouTube registers a unique ID with this cookie to keep statistics on which videos the user has seen. It is a persistent HTML cookie.
yt-player-bandaid-host – This cookie helps determine the optimal video quality based on the visitor’s device and network settings. It is a persistent HTML cookie.
yt-remote-cast-available – Stores the user’s video player preferences using embedded YouTube video as a session HTML cookie.
yt-remote-cast-installed – This session HTML cookie stores the user’s video player preferences with embedded YouTube video.
yt-remote-connected-devices – YouTube stores the user’s video player preferences with this persistent HTML cookie.
yt-remote-device-id – This persistent HTML cookie stores the user’s video player preferences with embedded YouTube video.
yt-remote-fast-check-period – YouTube stores the user’s video player preferences with this session HTML cookie.
yt-remote-session-app – Stores the user’s video player preferences using embedded YouTube video as a session HTML cookie.
yt-remote-session-name – This session HTML cookie stores the user’s video player preferences with embedded YouTube video.