The NID cookie is set by Google on many of its properties to store simple preferences and support ad personalization.
Who sets it: Google — deployed across Google Search, YouTube and other Google services.
What it does: Remembers user preferences and helps personalize ads and search results.
Duration: Persists for about six months from placement.
Consent type: Advertising/personalization cookie; consent is typically required for personalized advertising under privacy regulations.
To view the NID cookie in your browser, follow our inspect cookies guide. For broader tracking context, see How To See Who's Tracking You.