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Prebid.js
最主流的开源 Header Bidding 框架，允许发布商同时向多个 SSP 发起竞价，提升广告填充率和 CPM。
主要用途
Prebid.js is the open-source JavaScript framework that standardized header bidding. Installed on a publisher's pages, it runs an auction among demand partners before the ad server makes its decision: each configured bidder adapter requests bids in parallel within a timeout, winning bids are passed to Google Ad Manager as key-values, and the ad server lets them compete against direct and AdX demand. Over 300 bidder adapters exist, alongside modules for identity solutions, consent management, price floors, currency conversion, and video. Being vendor-neutral and free, it gives publishers auction transparency and bidder control that proprietary wrappers do not, at the cost of owning configuration, latency tuning, and partner management.
所在链路
Prebid.js runs on-page before Google Ad Manager in the publisher stack, injecting competing exchange demand into the final ad decision.
核心功能
- Parallel client-side auctions before the ad server call
- 300+ open-source bidder adapters
- Identity, consent, floor, and currency modules
- Configurable timeouts and auction controls
- Vendor-neutral governance under Prebid.org
适合谁用
- Publishers with the technical capacity to own their auction stack
- Sites diversifying demand beyond Google AdX
- Monetization teams that want auction transparency and control
新手提示
- More bidders is not better: each adds latency and page weight, so start with three to five strong partners and expand based on measured incremental revenue.
- Set timeouts deliberately, because a generous timeout raises yield slightly while measurably slowing the page and hurting Core Web Vitals.
- You need direct relationships and contracts with each demand partner; Prebid is plumbing, not a demand source itself.