Standards

VPAID (Video Player-Ad Interface Definition) — Definition & Explanation

A standard that enables interactive video ad experiences by allowing ad creatives to communicate with the video player. VPAID supports rich media features but can cause performance issues and is being phased out in favor of SIMID.

How VPAID (Video Player-Ad Interface Definition) Works

VPAID wraps creative JavaScript inside a standardized API that the video player calls to display interactive elements. The creative can pause the video, expand elements, and trigger events based on user interactions.

Why VPAID (Video Player-Ad Interface Definition) Matters for Publishers

VPAID creatives cause security and performance concerns — they run privileged JavaScript in publisher pages. Many CTV environments block VPAID, and the industry is transitioning to SIMID for interactive video.

Frequently Asked Questions

Should publishers support VPAID?
VPAID is declining in support. Publishers should implement VAST 4.x for standard video and evaluate SIMID for interactive video experiences.
Why is VPAID being phased out?
VPAID's privileged JavaScript execution creates security risks and performance problems. It's incompatible with server-side ad insertion and blocked by CTV environments.
What is SIMID and how does it differ from VPAID?
SIMID (Secure Interactive Media Interface Definition) replaces VPAID with a sandboxed messaging approach that provides interactive capabilities without privileged JavaScript execution.

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