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DoubleVerify and IAS Often Fail to Protect Brand Safety: Adalytics

Last year, then-Twitter tried to address advertisers’ brand safety concerns by partnering with DoubleVerify and IAS, which promise to stop ads from appearing near objectionable content.   But industry gadfly Adalytics has just found that those services often fail to block ads when they should.  The study didn’t focus on X although the same problems probably apply.