Viewability has become one of the most important signals in programmatic advertising. Advertisers increasingly weigh not just how many impressions a site delivers, but how many of those impressions are actually seen — and inventory that falls short of industry benchmarks is valued accordingly. As the digital advertising landscape continues to evolve, viewability is only becoming more central to how sites are assessed and monetised.

We saw this play out with one of our publisher partners. Several placements were sitting well below industry viewability benchmarks, quietly limiting how much of the site's inventory advertisers were willing to pay for. We recommended a leaner approach: removing the weakest-performing placements and introducing ad refresh on the ones that remained. The results were immediate. Average viewability rose by almost 37%, moving the site from well below industry benchmark to comfortably above it.

That shift had a compounding effect. Because refresh only generates value on inventory that's actually being seen, the jump in viewability unlocked a 137% increase in impressions — not from adding more ad slots, but from existing placements becoming eligible to refresh far more often. In turn, overall ad revenue more than doubled, up 112% over the same period.