Friday, April 18, 2025 - A U.S. judge ruled on Thursday, April 17, that Google illegally monopolized the online advertising technology market, dealing a significant blow to the tech giant’s revenue stream. The federal government, along with over a dozen U.S. states, had filed an antitrust lawsuit accusing Google, the parent company of Alphabet, of using illegal practices to dominate three key areas of digital advertising: publisher ad servers, advertiser tools, and ad exchanges.
The lawsuit is one of two major federal cases targeting
Google, and it could potentially lead to the company being broken up, which
would reduce its influence in the tech world. This legal action is part of a
broader government push to rein in the power of Big Tech.
The plaintiffs claimed that most websites rely on Google’s
trio of ad software products, leaving publishers with no viable alternative to
the company's technology. District Court Judge Leonie Brinkema largely agreed
with these assertions, ruling that Google had created an illegal monopoly over
the ad software and tools used by publishers. However, she partially dismissed
claims related to tools used by advertisers.
In her ruling, Judge Brinkema stated, "Google has
willfully engaged in a series of anticompetitive acts to acquire and maintain
monopoly power in the publisher ad server and ad exchange markets for open-web
display advertising." She further explained that Google had strengthened
its monopoly by imposing anticompetitive policies on its customers, which had a
detrimental effect on rivals and publishers. The conduct, she said,
"substantially harmed Google’s publisher customers, the competitive
process, and, ultimately, consumers of information on the open web."
In response, Google vowed to appeal the decision. "We
won half of this case and we will appeal the other half," said Lee-Anne
Mulholland, Google’s vice president of regulatory affairs. "The court
found that our advertiser tools and our acquisitions, such as DoubleClick,
don’t harm competition," she added.
Evelyn Mitchell-Wolf, a senior analyst at eMarketer, pointed
out that the ruling signals a shift in antitrust actions against Google and
other digital advertising giants. She noted that the fallout from the case
would depend on the legal remedies imposed, which could take years to implement
if Google loses its appeals.
The case is part of a broader effort by the U.S. government,
under both the Trump and Biden administrations, to take a more aggressive
stance on antitrust enforcement. This shift comes after a period of relative
quiet in antitrust prosecution following the Microsoft case in the late 1990s.
In addition to the ongoing online ad technology case, Google
is also facing antitrust scrutiny over its dominant search engine. Last August,
a U.S. judge ruled that Google maintained a monopoly in that area as well, a
decision the company has appealed.
The outcome of this latest case could have significant
consequences not only for Google but also for the broader advertising industry.
With online advertising driving much of Google’s profits, any changes to its
dominance could severely impact vulnerable publishers who rely on the company’s
technology.
As the case progresses, remedies proposed by the plaintiffs
could include the forced breakup of Google’s advertising operations. Advocacy
groups have hailed the decision as a victory for consumers, with some calling
for more drastic action, such as a structural break-up of the company.
