Open Rate
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Open rate is the percentage of delivered emails registered as opened by recipients. Although open tracking is impacted by privacy protections and automatic image loading, it remains a useful directional signal.
- Usage:
- Benchmarking subject line performance over time.
- Monitoring sudden drops that may indicate deliverability issues.
- Caution: Should not be treated as an absolute metric; best interpreted alongside clicks, conversions, and device-level patterns.
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