Ad-tech
Prebid.js
Open-source header-bidding wrapper — industry standard since 2017.
Prebid.js is the open-source JavaScript header-bidding wrapper that's become the industry standard since ~2017. Maintained by IAB Tech Lab and a coalition of vendors. Lets publishers integrate 100+ SSPs without bespoke code per partner. Fork: Prebid Server (server-side header bidding, lighter on page-load). Most premium publishers (CNN, Bloomberg, NYT) run Prebid as the foundation of their monetization stack.
Example
Mid-size publisher (12M monthly visits) deploys Prebid.js with 9 SSP adapters — page-weight increases 180KB, RPM lifts $1.20 — net positive after the page-speed cost.