As ads.txt adoption grows, so too does enforcement

On Jan. 8, MediaMath kicked a handful of publishers out of its “curated market,” an exclusive programmatic marketplace that the demand-side platform created last year for more than 7,000 advertisers and 500 publishers to automate the buying and selling of high-end inventory. The reason: Those publishers had failed to upload to their sites an ads.txt file listing which companies were authorized to programmatically sell or resell their inventory.

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