YSC
Registers a unique ID to keep statistics of what YouTube videos the user has seen (set upon user interaction). • Session
VISITOR_INFO1_LIVE
Estimates the user's bandwidth on pages with integrated YouTube videos (set upon user interaction). • 6 months
PREF
Records user's preferred settings, e.g. language, result format, safe search filter (set upon user interaction). • 8 months
GPS
Registers a unique ID on mobile devices to enable tracking based on geographical GPS location (set upon user interaction). • 30 minutes
CONSENT
Records user consent preferences for Google services. • Varies
__Secure-3PAPISID
Google cookie for security, user authentication, and personalization. • 2 years
__Secure-3PSID
Google cookie for security, user authentication, and personalization. • 2 years
IDE
Used by Google DoubleClick to register and report the user's actions after viewing or clicking an advertiser's ad, measuring ad efficacy and presenting targeted ads. • 1 year
NID
Used by Google to remember user preferences and other information, which can include ad personalization for AdSense. • 6 months
_gcl_*
Stores campaign information for Google Ads. • 90 days
_gac_*
Contains campaign-related information from Google Ads, used for conversion tracking if linked with Google Analytics. • 90 days
_gtm_debug
Used by Google Tag Manager for debugging purposes when in preview mode. • Session
_ga
Used by Google Analytics to distinguish users. • 2 years
_gid
Used by Google Analytics to distinguish users. • 24 hours
test_cookie
Used to check if the user's browser supports cookies. • 15 minutes
_gads
Used to ensure that ads are displayed correctly and to track user interactions with ads. • 13 months
DSID
Used by Google to record when an advertising campaign has been viewed. • 2 weeks
_gcl_au
Used by Google AdSense to experiment with advertisement efficiency across websites. • 3 months
AID
Used for Google account and ad-related preferences and tracking. • Until session ends
TAID
Used for Google account and ad-related preferences and tracking. • Until session ends
ANID
Google advertising cookie used for ad personalization. • 1 year
_GRECAPTCHA
Used by reCAPTCHA to provide bot detection and spam protection for the website. It contains a score and identifies the user for a limited time. • 6 months
rc::c
Used to track user interactions for reCAPTCHA v2 challenges to verify human activity. • Session
rc::d
Used to determine if the user is a human or a bot, often associated with reCAPTCHA v3's scoring mechanism. • Session
__gads
Used by Google AdSense to serve ads and prevent the same ad from being shown too many times to a user. • 13 months
__gpi
Used by Google to track ad impressions and measure the effectiveness of ads. • 13 months
AEC
Ensures that requests within a browsing session are made by the user and not by other sites. These cookies prevent malicious sites from acting on a user’s behalf without their knowledge. • 6 months
_gat_*
Used to throttle request rate. • 1 minute
AW_*
Used for Google Ads conversion tracking and remarketing. • Varies, typically 30-90 days
__Secure-ENID
Used by Google for tracking and personalizing ads. • 1 year
FCNEC
Used to detect if the user has consented to marketing cookies by the Google Ads infrastructure. • 1 year
__Secure-3PSIDCC
Google cookie for security, user authentication, and personalization. • 2 years
APISID
Security cookie to authenticate user, prevent fraudulent use of login credentials, and protect user data from unauthorized parties. • Varies
HSID
Security cookie to authenticate user, prevent fraudulent use of login credentials, and protect user data from unauthorized parties. • Varies
SAPISID
Security cookie to authenticate user, prevent fraudulent use of login credentials, and protect user data from unauthorized parties. • Varies
SID
Google cookie for security, user authentication, and personalization. • 2 years
SIDCC
Google cookie for security, user authentication, and personalization. • 2 years
SSID
Security cookie to authenticate user, prevent fraudulent use of login credentials, and protect user data from unauthorized parties. • Varies
fledge
Part of Google's Privacy Sandbox, used for interest-based advertising experiments. • 30 days
gcm_*.fledge.google
Related to FLEDGE within Google's Privacy Sandbox for ad targeting experiments. • 30 days
__gpl
Used by Google to store information about the user's activity for ad personalization and measurement. • 2 years
__gads_*
Used by Google AdSense to track visitors across websites and manage unique user IDs for ad delivery. • 13 months
_gat_gtag_UA_*
Used by Google Analytics to throttle request rate. Set upon interaction with the player. • 1 minute
__gsas
Used for ad selection and delivery, often temporary or session-based. • Session
_gcl_aw
Used by Google Ads to store user activity and measure ad performance. • 90 days