What it is
An ad rotator lets one ad spot “take turns.” Each page view (or refresh) shows a different creative from a set, so the same space can test ideas, share inventory, and feel fresh to visitors.
Why use it
-
Keep pages from feeling repetitive
-
A/B test headlines, images, and calls-to-action
-
Share impressions fairly across partners or campaigns
How it works
-
The page or ad server picks from a creative pool using rules (weights, frequency caps).
-
It renders that ad and logs the impression/click.
-
On the next view or refresh, it selects another eligible creative.
Good to know
-
Rotation ≠ personalization; consent may be needed for any tracking.
-
Too many variants can slow pages and muddy results.
-
Avoid swaps after load that cause layout shifts (CLS).
Quick tips
-
Limit variants to what you can meaningfully test.
-
Set weights and frequency caps to keep delivery fair.
-
Track viewability and CTR—don’t judge on clicks alone.
-
Refresh filter lists and check for broken tags regularly.