Jedi Blue: The Secret Deal That Stopped the Ad Wars

The brief: two giants of the online advertising duopoly struck a secret deal to stop competing. Google gave Facebook preferential treatment in its ad auctions; Facebook agreed to back Google’s system and not build the rival technology publishers actually wanted. Codename: Jedi Blue.

The Setup

For years Google dominated every layer of the online ad market — the tools marketers buy ads with, the tech publishers sell ads with, and the exchange connecting them. As one antitrust suit put it, Google was “pitcher, batter, and umpire, all at the same time.”

The one real threat to that grip was header bidding: a snippet of JavaScript publishers dropped into their pages that let multiple ad exchanges bid simultaneously, rather than waiting their turn in Google’s “waterfall.” It was a workaround that returned control to publishers — roughly 70% of US publishers were using it by 2016. Google reportedly called Facebook’s own move into header bidding an “existential threat.”

The Deal

In September 2018, Google and Facebook signed an internal agreement code-named Jedi Blue. According to the antitrust complaint led by Texas Attorney General Ken Paxton, it was a classic quid pro quo:

• Google gave Facebook preferential rates and priority access to prime ad placements in its Open Bidding auctions.
• Facebook agreed to use and support Google’s Open Bidding system — and to not build competing ad technologies or adopt the publisher-friendly header bidding Google feared.

In other words, the two companies that dominated digital advertising agreed to stop competing with each other, effectively dividing the market and neutralizing the technology that threatened both of them.

The Rot

• Collusion in the open market: the world’s two biggest ad sellers rigged the auction that publishers and advertisers were told was fair.
• Innovation stifled: header bidding — the one tool that improved publisher yield — was boxed out because the biggest players had a deal not to use it.
• Secret by design: the agreement was code-named, internal, and only surfaced years later via a botched legal filing.

What Worked

• Exposure: the deal leaked into the open through the Texas AG’s antitrust lawsuit, and Google’s accidentally-unredacted court filing spilled the mechanics.
• Regulator attention: in March 2022 the European Commission and the UK’s CMA both opened formal probes into whether the pact excluded rivals to the detriment of publishers.
• Accountability, partially: while the Texas suit specifically targeting Jedi Blue was later dismissed by a federal judge, the broader scrutiny of Google’s ad-tech dominance continued.

The Takeaway

Jedi Blue is enshittification at the market level. When the two biggest players in an industry stop fighting each other and start dividing the spoils, the losers aren’t each other — they’re the publishers who earn from their own content, the advertisers who bid on it, and ultimately everyone who reads what those ads fund. The exposure didn’t fully unwind the damage, but it proved the most effective countermeasure of all: sunlight. A deal built in secret thrives in darkness; drag it into the open and it collapses under its own weight.

Status

In progress. The rot was exposed and regulators moved, but Google’s hold on ad tech remains largely intact and the specific collusion claim was dismissed. The pattern — giants quietly partitioning a market — is worth watching for repeats.

Watch: Google-Facebook ‘Jedi Blue’ ad deal probed by EU, UK watchdogs