Off-site and on-site display ad spending will each more than double over the next fiveyears. On-site display ad spending—what we refer to as ecommerce channel display ad spending in our forecasts—will climb to $9.98 billion in 2024, then grow at least 24% YoY every year through 2028.
But off-sitedisplayad outlays will grow faster. Until now, retail media display ad spending has largely been concentrated on retailer sites. But off-site retail media display ad spending will grow 163.6% between 2024 and 2028, when it will reach $28.05 billion.
Third-party cookie deprecation will continue to fuel this spending. Google may have delayed its deprecation of support for third-party cookies again, but advertisers will nonetheless gravitate toward advertising partners that offer robust first-party data.