HBMP Transparency — Event Timing

Measure GAM and HBMP wrapper event timings. Each page shows a live event log with collapsible detail dumps.

Reference

• HBMP Public Events Documentation
  Technical reference for the 5 public lifecycle events: PlacementCreated, AuctionStarted, AuctionEnd, RenderEnded, AdViewable. Field-by-field payloads, lifecycle order, and stage-by-stage data availability.

Live Pages

• GAM Only — Baseline
  Pure Google Ad Manager, no HBMP wrapper. Baseline GAM event timing (slotRequested → slotResponseReceived → slotRenderEnded → slotOnload).
• GAM + HBMP Fast Async
  HBMP wrapper in fastAsync mode. GAM fires first, HB bids applied on refresh cycle. Shows both GAM and HBMP event timelines.
• GAM + Standard HBMP
  Standard HBMP integration. HB auction completes before GAM request. Full lifecycle: PlacementCreated → AuctionStarted → AuctionEnd → RenderEnded.