Google has lost a major antitrust case after a judge found it illegally built 'monopoly power' to control online advertising.
US District Judge Leonie Brinkema made the ruling on Thursday in a significant victory for online news publishers.
The decision vindicates dozens of companies that were disadvantaged by Google's practices worldwide.
Daily Mail's Chief Digital Officer Matthew Wheatland was a key witness in the case, fought by the Department of Justice, which proved the tech giant promotes anti-competitive practices in two key markets.
These two markets - the publisher ad server and ad exchange markets for open-web display advertising - were illegally controlled by Google's monopoly for the last decade, the judge ruled on Thursday.