Ad Fatigue.
Learn what Ad Fatigue means in modern search and SEO.
The decline in ad performance that occurs when the same audience sees the same creative too frequently, reducing engagement and CTR.
Ad fatigue occurs when a target audience has seen a specific ad creative so many times that engagement drops—CTR falls, conversion rates decline, and cost-per-result rises. It is a natural consequence of finite audience sizes combined with high impression frequency in retargeting and narrow lookalike campaigns.
Diagnosing Ad Fatigue
Key signals include: frequency metrics exceeding 3–7 exposures per user per week, declining CTR despite stable audience composition, rising CPM as the platform's relevance score degrades, and increased negative feedback (hide ad, report ad) from the audience.
Combating Ad Fatigue
Rotating creative assets every 2–4 weeks before fatigue sets in is the primary prevention strategy. Dynamic Creative Optimisation (DCO) automatically tests headline, image, and copy combinations, extending effective creative lifespan. Broadening audience targeting, using campaign budget optimisation, and pausing high-frequency ad sets also help manage exposure.
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