IDE is set by Google LLC via DoubleClick (now Google Ads) to track ad impressions and measure conversions across websites.
Who sets it
Google LLC — delivered from the doubleclick.net domain as part of Google's advertising network.
What it does
Stores an identifier used to recognise a browser across sites that serve Google ads. This allows Google to measure whether an ad resulted in a conversion and to avoid showing the same ad too many times.
Duration
Up to 13 months, though it is periodically refreshed.
Consent type
Marketing / advertising — third-party cookie. Requires explicit marketing consent under GDPR.
A cross-site tracking cookie from Google's ad network. Block it via browser privacy settings or a consent management platform. See how to inspect cookies for instructions.