OIDC

An authentication layer built on top of OAuth 2.0 that verifies user identity and provides profile information (e.g., name, email) in a standardized, interoperable way. In digital marketing, OIDC powers secure single sign-on (SSO) experiences across marketing tools (e.g., HubSpot, Marketo, Google Workspace), customer logins for personalized campaigns, consent management for privacy-compliant tracking, and federated identity in ad tech or analytics platforms—reducing friction and improving user trust.