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Ezoic's Viewability Fix Should Make You Question Every Display CPM

September 20, 2026

Ezoic, a publisher ad-tech platform, just threw out 25% of its display impressions on purpose to push viewability up to 87%. The result, according to PPC Land, was roughly a 54% jump in prebid win CPM starting August 4. Fewer impressions counted, the ones left looked better, and the price per thousand went up accordingly.

Here's why that should matter to you even though you've probably never heard of Ezoic. Your programmatic display buys for prospect ads, remarketing, awareness, whatever the agency calls it this quarter, run through exchanges that touch publishers exactly like this one. When a publisher decides to stop counting the impressions that never actually loaded on screen, your reported viewability rate goes up and your CPM goes up with it. Nobody built you a better ad. They just stopped billing you for ads nobody saw. That's a real improvement, but it's also a reset of the baseline your agency has been comparing performance against all year.

Now stack Google's stricter viewability counting standard, arriving February 2027, on top of that. If the industry moves toward a tighter definition of "viewable," the numbers your team is looking at right now, the ones in this month's QBR, may not survive the transition. A campaign that looks efficient today could look mediocre under the new count, not because performance changed, but because the ruler changed. If your agency can't explain which ruler they're using, you don't actually know what you're paying for.

Ask these on the next call, and don't accept a shrug for an answer:

Here's the split between a real answer and a stall. A vendor who's paying attention will tell you exactly which viewability standard they report against today, name the vendor or exchange, and say plainly whether that standard is changing under Google's February 2027 update. They'll be able to show you a viewability percentage next to a CPM and explain the relationship between the two without blaming "the algorithm." An evasive answer sounds like "we're keeping an eye on industry changes" or "our reporting is in line with best practices," which means they either don't know or don't want to say. If they can't tell you what counts as a viewable impression on your account right now, they can't tell you what you're actually buying.

Source: PPC Land, September 18, 2026