This script (`base.js`) is a fundamental component of the YouTube embedded player. It is responsible for initializing the video player interface, managing video loading, playback controls (play, pause, volume, seek), and handling user interactions within the embedded player. It facilitates communication with YouTube's content delivery network and backend services to stream video content efficiently. Furthermore, it manages API interactions, allowing websites to programmatically control the embedded player and respond to player events, ensuring a consistent and interactive video experience for viewers across different platforms and browsers.
Capabilities
The script enables the seamless integration of YouTube videos into any webpage by providing a fully functional and interactive video player. It addresses the challenge of delivering rich media content by abstracting away the complexities of video streaming, content delivery, and interactive controls. Key features include adaptive streaming to optimize video quality based on network conditions, support for various playback options like autoplay and looping, and comprehensive controls for a robust user experience. It also provides an API for developers to customize player behavior and integrate with their website's functionality.
- Video Playback
- Embedded Player
- Video Controls
- Adaptive Streaming
- Content Delivery
- Player API
- User Interaction Management
Digital Footprint
Known Cookies
YSC
Used by YouTube to track views of embedded videos. Typically a session cookie, set upon user interaction in 'nocookie' mode. • Session
VISITOR_INFO1_LIVE
Used by YouTube to estimate the user's bandwidth and determine video quality. Set upon user interaction in 'nocookie' mode. • 8 months
PREF
Used by YouTube to store user preferences like preferred language, safe search filter, or playback settings. Set upon user interaction in 'nocookie' mode. • 8 months
GPS
Registers a unique ID on mobile devices to enable tracking based on geographical GPS location. • 30 minutes
CONSENT
Stores user's consent preferences. • 2 years
__Secure-3PAPISID
Used by Google to deliver services and maintain security, particularly in combination with embedded YouTube videos. Set only upon user interaction with the video player. • 2 years
__Secure-3PSID
Used by Google to deliver services and maintain security, particularly in combination with embedded YouTube videos. Set only upon user interaction with the video player. • 2 years
IDE
Used by Google DoubleClick to register and report user actions after viewing or clicking an advertiser's ad with the purpose of measuring the efficacy of an ad and presenting targeted ads to the user. • 1 year
NID
Used by Google to remember user preferences and other information, which can include ad personalization for AdSense. • 6 months
_gcl_*
Used by Google AdSense/AdWords/Google Tag Manager to store user activity and conversion information from ad campaigns. • 90 days
_gac_*
Contains campaign-related information from Google Analytics for ad campaign tracking. • 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 and track their interactions with YouTube content. • 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 store a unique identifier for each user to track their ad interactions and measure ad effectiveness. • 13 months
DSID
Used by Google to connect user activity across multiple devices for advertising and personalization. • Session
_gcl_au
Used by Google AdSense to store a unique ID for users for advertising purposes. • 90 days
AID
Used for ad tracking. • Persistent
TAID
Used by Google to track users across different domains for advertising purposes. • Variable, typically short-term
ANID
Used to show ads on Google properties based on a user's previous visits to other sites. • 1 year
_GRECAPTCHA
Sets a necessary cookie (_GRECAPTCHA) when executed for the purpose of providing its risk analysis. • 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 to support targeted ads based on user behavior and to limit the number of times a user sees a particular ad. • 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 previously interacted with advertising from Google. • 13 months
__Secure-3PSIDCC
Used by Google to deliver services and maintain security, particularly in combination with embedded YouTube videos. Set only upon user interaction with the video player. • 2 years
APISID
Used to track user activity and preferences across Google services. Can be used for targeted advertising. • 2 years
HSID
Security cookie to authenticate user, prevent fraudulent use of login credentials, and protect user data from unauthorized parties. • Varies
SAPISID
Used to track user activity and preferences across Google services. Can be used for targeted advertising. • 2 years
SID
Contains digitally signed and encrypted records of a user’s Google Account ID and most recent sign-in time. • 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
Related to ad serving and fraud detection for Google Syndication. • 13 months
_gcl_aw
Used by Google Ads to measure conversions, tracking interactions with ads that lead to actions on the website. • 90 days
1P_JAR
Used by Google to collect website statistics and track conversion rates. • 1 month
_gac_UA-XXXXX-X
Contains campaign-related information for ads displayed through Google AdSense. The 'UA-XXXXX-X' part is specific to the Google Analytics property. • 90 days
_gcl_dc
Used by Google Ads to measure conversions, tracking interactions with ads that lead to actions on the website. • 90 days
FLC
Used by Google to determine if the user has previously visited a website and interacted with ads. • 10 days
__Host-GAPS
Used by Google to store session information and verify user identity. • Session
_gac_gb_*
Contains campaign-related information for Google Ads to track conversions. • 90 days
RUL
Used for remarketing purposes across Google's advertising network. • 1 year
__gac_*
Contains campaign-related information for Google Ads. The '*' represents a property ID. • 90 days
FCNET
Likely related to ad fraud prevention and ensuring proper ad delivery and measurement. • Session
yt-remote-connected-devices
Stores user video player preferences (e.g., volume, resolution) for connected devices, set after user interaction. • Persistent
yt-remote-device-id
Stores user video player preferences for device identification, set after user interaction. • Persistent
GRECAPTCHA
Used to distinguish between humans and bots to protect websites from spam and abuse. • 6 months
dsid
Used by Google DoubleClick to identify a unique user across non-Google sites. • 10 minutes
GED_PLAYLIST_ACTIVITY
Related to user activity and ad measurement. • Persistent
_drt_
Used for ad impression tracking by DoubleClick. • Persistent
id
Used by Google to store user preferences and information when viewing pages with Google ads. • 13 months
Endpoints
- www.youtube.com
- s.ytimg.com
- i.ytimg.com
- *.googlevideo.com
- www.google.com
- googlevideo.com
- googleads.g.doubleclick.net
- www.googleadservices.com
- www.googletagmanager.com
- www.google-analytics.com
- www.youtube-nocookie.com
- r*.googlevideo.com
- securepubads.g.doubleclick.net
- ad.doubleclick.net
- pagead2.googlesyndication.com
- adservice.google.com
- tpc.googlesyndication.com
- google.com
- doubleclick.net
- www.gstatic.com
- www.recaptcha.net
- fonts.gstatic.com
- stats.g.doubleclick.net
- gstatic.com
- ep2.adtrafficquality.google
- recaptcha.net
- r*.sn-*.googlevideo.com
- googlesyndication.com
- recaptcha.google.com
- www.googletagservices.com
Security Incidents & Vulnerabilities
medium7/29/2024
Path traversal vulnerability in google-auth-library-nodejs could lead to arbitrary file reads.
critical9/8/2023
Use-after-free vulnerability in Mojo in Google Chrome prior to 117.0.5938.92 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
medium3/22/2022
Information Exposure in google-cloud-python allowing exposure of sensitive data via HTTP response.