After a analysis report final week discovered that YouTube’s promoting practices had the potential to undercut the privateness of kids watching kids’s movies, the corporate stated it restricted the gathering of viewer information and didn’t serve focused adverts on such movies.

Some of these customized adverts, which use information to tailor advertising to customers’ on-line actions and pursuits, might be efficient for locating the appropriate customers. Beneath a federal privateness legislation, nevertheless, kids’s on-line providers should get hold of parental consent earlier than accumulating private info from customers below 13 to focus on them with adverts — a dedication YouTube prolonged to anybody watching a kids’s video.

Now Fairplay, a outstanding kids’s group, is difficult the corporate’s privateness statements. The group stated it had used promoting placement instruments from YouTube’s guardian firm, Google, to run a $10 advert marketing campaign this month focused at totally different teams of adults, completely on kids’s video channels.

The adverts had been proven to customers in shopper segments chosen by the youngsters’s group — together with motorbike lovers, high-end laptop aficionados and avid buyers — on widespread channels together with “Cocomelon Nursery Rhymes,” “Speaking Tom” and “Like Nastya,” in accordance with a placement report Fairplay acquired from Google. In whole, the group’s adverts had been positioned 1,446 instances on YouTube kids’s video channels.

Adalytics, the corporate that printed the analysis first reported on by The New York Occasions final week, stated it had analyzed related advert campaigns on kids’s channels from a number of different media patrons.

On Wednesday morning, Fairplay, the Middle for Digital Democracy and two different nonprofit teams lodged a grievance with the Federal Commerce Fee, asking the company to research Google and YouTube’s information and promoting practices on movies made for youngsters.

In a letter to Lina M. Khan, the F.T.C. chair, the teams stated the brand new analysis “raises severe questions” about whether or not Google had violated federal kids’s privateness guidelines.

Michael Aciman, a Google spokesman, stated: “The conclusions on this report level to a basic misunderstanding of how promoting works on made-for-kids content material. We don’t enable adverts personalization on made-for-kids content material, and we don’t enable advertisers to focus on kids with adverts throughout any of our merchandise.”

Google stated it continued to abide by baby privateness commitments it made to the F.T.C. It added that some YouTube channels function a mixture of movies for youngsters and adults and that, consequently, it was doable that Fairplay had acquired viewers section experiences for adverts showing on movies that weren’t made for youngsters.

This isn’t the primary time that Fairplay and the Middle for Digital Democracy have pressed the F.T.C. to research Google and YouTube over kids’s privateness. In a grievance to the company in 2018, the 2 organizations, together with 21 different teams, accused the corporate of improperly accumulating information from kids who watched kids’s movies.

In 2019, the Federal Commerce Fee and the State of New York discovered that the corporate had illegally collected private info from kids watching kids’s channels. Regulators stated the corporate had profited from utilizing kids’s information to focus on them with adverts.

Google and YouTube agreed to pay a document $170 million to settle regulators’ accusations.

“There are only a few authorized protections for youngsters on-line,” stated Josh Golin, the manager director of Fairplay. “One of many few obligations that platforms like YouTube have is to not use kids’s private info to trace them or serve customized adverts.”