Bidder Selection and Lazy Loading 7 Browser Traffic Shaping Browser Prebid.js Shaping Rules Demand Partners Ad Server 1 Check rules 2 Skip/allow 3 Allowed reqs 4 Bids 5 Target KVs 6 Creative P_
Bidder Selection and Lazy Loading Browser Traffic Shaping 7 The shapingRules module (v10.24) hooks fetchBids 1 to skip bidders before any HTTP call. Schema functions evaluate context — geo, EIDs, device type, domain — and decide per-bidder 2 . Only allowed bidders fire requests 3 . Rules load from a remote endpoint; weighted modelGroups run A/B tests with analytics tags. FIELD NOTES → Skipped bidders get zero HTTP calls — same mechanism as TCF denial → percent schema enables random sampling per bidder per auction P_ atd.postindustria.com/7

How It Works

The `shapingRules` module (v10.24) hooks `fetchBids` [1] to skip bidders before any HTTP call. Schema functions evaluate context — geo, EIDs, device type, domain — and decide per-bidder [2]. Only allowed bidders fire requests [3]. Rules load from a remote endpoint; weighted `modelGroups` run A/B tests with analytics tags.

Field Notes

  • Skipped bidders get zero HTTP calls — same mechanism as TCF denial
  • `percent` schema enables random sampling per bidder per auction

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