Ad refresh on a 30s timer (active-tab gated)

Ad refresh on a 30s timer (active-tab gated)

What it does: re-requests an ad slot after a fixed interval, billing a fresh impression each cycle. The cheap-and-dirty version is a naked setInterval — that's the mistake.

Setup effort: 3/5 if you gate it properly (viewability + active tab + user activity), 1/5 if you do it wrong.

RPM lift seen: +15 to +30% on session RPM for sticky/anchor units where dwell is high. Almost nothing on units users scroll past in 4 seconds.

Pros
— Monetizes long dwell without adding slots
— Compounds with sticky placements

Cons
— Refreshing non-viewable or background-tab ads tanks viewability and burns advertiser trust
— Some demand partners forbid