Home Online Advertising Ads.txt Study Shows Huge Publisher Losses To Domain Fraud

Ads.txt Study Shows Huge Publisher Losses To Domain Fraud

SHARE:

Ads.txt research released Tuesday shines a new light on the extent of the harm done to major publishers by inventory resellers and lax supply chain standards.

A joint study from Google, Amobee and Quantcast that examined Ads.txt data found rampant counterfeit inventory available to DSPs that seemingly came from 16 media companies, including Turner, The New York Times, Business Insider and The Washington Post.

The study cataloged inventory callouts allegedly from the 16 publishers available across three participating DSPs, then cross-checked those callouts against the legitimate inventory on programmatic exchanges. There were four times more display callouts than legitimate inventory, and 57 times more video ad callouts.

“Multiplied across publishers in the ecosystem you get a sense of how vast the problem is,” said Pooja Kapoor, Google’s head of global strategy, programmatic and ecosystem health. “If we all adopt and enforce Ads.txt in a uniform way, and everyone is filtering inventory, we can redirect billions of dollars into publisher pockets.”

And publishers need the demand side’s help to enforce Ads.txt.

Business Insider has taken an aggressive approach, testing its own ad supply chain and asking exchange vendors to shut down unauthorized accounts ostensibly reselling its inventory, said Jana Meron, the publisher’s VP of programmatic and data strategy.

“This goes back to exchange technology companies needing to be the sheriffs and not just the pipes,” she said.

Aside from dragging down CPMs and broadly siphoning off advertiser interest in buying a certain publisher property, counterfeit inventory throws a wrench in the brand and attribution efforts for top news media companies.

CNN, one of the most spoofed sites, deals with second-order effects when readers or marketers are fooled by fraudulent CNN pages, said Nick Johnson, senior VP of digital ad sales strategy at CNN parent company Turner. Readers get a bad experience – or even outright scammed – while marketers run attribution for bot-viewed inventory on a hoax site thinking it’s a CNN campaign.

Video advertising in particular could see CPM boosts for reputable publishers if the study results are consistent in the market and Ads.txt cuts out most of the unauthorized media.

“One thing that stood out to me in this study is that video inventory is overstated by more than 50 times,” Johnson said. “There’s way less quality video available than the market thinks.”

 

Must Read

DOJ v. Google: During Opening Arguments, The DOJ And Google Battle Over An AdX Divestiture

Court is back in session. And the fate of  the open internet is in the balance.

Chris Mufarrige, director, Bureau of Consumer Protection, FTC

FTC Consumer Protection Chief: No Easy Answers On Privacy, ‘Only Trade-Offs’

Privacy isn’t black-and-white, says the FTC’s Chris Mufarrige, promising evidence-driven consumer protection cases under the Trump administration.

How Encryption Keys Could Resolve The TID Furor

Rather than sharing universal TIDs that any DSP or curator can access, Raptive says publishers should instead share encrypted TIDs with an encryption key provided only to trusted demand-side partners.

Privacy! Commerce! Connected TV! Read all about it. Subscribe to AdExchanger Newsletters

Clear Channel Brings Mid-Flight Measurement To Its OOH Network

Clear Channel will provide advertisers weekly, mid-flight reports on outcomes driven by its inventory in order to bring OOH measurement closer to the speed of digital.

FTC Commissioner Mark Meador speaking at the NAD's annual conference in Washington, DC on Sept. 16, 2025. (Photo: Brian O'Doherty)

FTC Commissioner Mark Meador: ‘No Human Society Can Long Survive Without Consumer Trust’

Keeping American kids safe in what FTC Commissioner Mark Meador calls “an increasingly complex and fast-paced technological environment” is a top priority for the agency.

Comic: "Deal ID, please."

Amazon Expands Its Programmatic Integration With SiriusXM

On Tuesday, Amazon DSP announced an expanded integration with satellite radio company SiriusXM.