Ad Relevance Diagnostics
Meta's system that rates ad quality across three dimensions: quality ranking, engagement rate ranking, and conversion rate ranking.
What Ad Relevance Diagnostics means
Ad Relevance Diagnostics is Meta's framework for evaluating ad performance quality across three dimensions: Quality Ranking (perceived quality compared to ads targeting the same audience), Engagement Rate Ranking (expected engagement rate compared to competitors), and Conversion Rate Ranking (expected conversion rate compared to similar ads). Each dimension is rated as above average, average, or below average. These diagnostics replaced the single Relevance Score metric in 2019. For compliance professionals, low quality rankings can indicate issues — ads with low quality rankings may contain content that generates negative feedback, below-average engagement may suggest misleading headlines or poor audience match, and low conversion rankings may indicate landing page problems. Monitoring these diagnostics helps identify potential compliance issues before they trigger formal policy enforcement.
Related terms
Relevance Score
A platform-assigned quality metric that rates how well an ad resonates with its target audience, affecting delivery and costs.
Quality Score
Google Ads' 1-10 rating of keyword, ad, and landing page quality that affects ad ranking and cost-per-click.
Ad Auction
The real-time bidding process where platforms determine which ad to show to a specific user based on bid, quality, and relevance.
Account Health
A platform's assessment of an advertiser's overall compliance track record, affecting ad review speed and account privileges.