Unknown Trackers Still Run Rampant on a Wide Range of Websites

An average of 20 trackers per site transfer user data, often secretly

The rallying cry for transparency in ad tech has been intensifying across the industry, but it looks like the programmatic stacks deployed by many publishers are more opaque than many would hope.

A recent report by Canadian security firm Feroot looked at monitoring software on more than 1 million webpages and found that in many instances, audience data was passed on to third parties, often without the publisher’s knowledge.

The study examined the data transfer of roughly 270,000 web trackers and tracking pixels across 1.1

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