YouTube employs various cookies to track user interactions with its content on websites. Some of these cookies have a short storage duration, while others last up to 180 days.
Here are some examples of the most commonly used YouTube tracking cookies:
1. **Secure-Rolloout Token**: A security cookie that ensures secure rollout of updates.
2. **LAST_RESULT_ENTRY_KEY**: Used to track user interactions with embedded content.
3. **LogsDatabaseV2**: Tracks user interactions and logs database requests.
4. **remote_sid**: Necessary for implementing YouTube video-content on a website.
5. **ServiceWorkerLogsDatabase**: Tracks user interactions and logs service worker health.
6. **TESTCOOKIESENABLED**: Used to track user interactions with embedded content, with a maximum storage duration of one day.
7. **VISITOR_INFO1_LIVE**: Estimates users’ bandwidth on pages with integrated YouTube videos, with a maximum storage duration of 180 days.
8. **YSC**: Registers a unique ID for tracking video watched by the user.
YouTube also uses other cookies to store user preferences and track user interactions, including:
* **ytidb::LAST_RESULT_ENTRY_KEY**
* **YtIdbMeta#databases**
* **yt-remote-cast-available**
* **yt-remote-cast-installed**
* **yt-remote-connected-devices**
* **yt-remote-device-id**
* **yt-remote-fast-check-period**
* **yt-remote-session-app**
* **yt-remote-session-name**
These cookies help YouTube provide a personalized experience for users and improve its services.
Source: https://www.chathamhouse.org/events/all/research-event/iran-israel-war-impact-iran