Trigger Conditions:
- Scroll depth reaches 90%, OR
- Time on page reaches 45 seconds
Pre-fetch Strategy:
- Mode: Lazy (auction starts when scroll reaches 70%)
- Benefit: Bid is cached and ready when trigger activates at 90%
Display Settings:
- Type: Overlay (dark background with centered ad)
- Close button delay: 3 seconds (ensures viewability)
- Ad size: 300x250
Frequency Capping:
- Max per session: 5 ads
- Max per day: 10 ads
Testing Instructions
- Click "Manual Trigger Echo Ad" to test immediately
- Scroll to 90% to trigger automatically (watch the scroll depth meter)
- Wait 45 seconds to trigger via time-on-page
- Use "Clear Frequency Caps" to reset counters for repeated testing
- Watch the event log to see module activity in real-time
Publisher Configuration Options
Publishers can customize Echo Ads behavior through the Prebid.js configuration:
- Bidders: Works with any Prebid bidder (GumGum, AppNexus, etc.)
- Ad Sizes: Configure any standard IAB sizes (300x250, 728x90, etc.)
- Trigger Points: Set custom scroll depth, time thresholds, or custom functions
- Pre-fetch Mode: Choose eager (immediate) or lazy (conditional) auction start
- Display Type: Overlay or interstitial formats
- Close Delay: Configure viewability guarantee period (0-10 seconds)
- Frequency Caps: Set session and daily limits to control user experience
- Callbacks: Hook into trigger, render, close, and frequency cap events
Keep Scrolling...
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