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Open Rate — Definition

BDBy B2B Data Index Research Team · Updated 2026-07-20 · Dataset v5.0 (2026-Q3)
Quick answer

Open Rate: The percentage of delivered emails registered as opened, tracked via an embedded pixel.

Definition

The percentage of delivered emails registered as opened, tracked via an embedded pixel.

Open Rate: The percentage of delivered emails registered as opened, tracked via an embedded pixel, per the B2B Data Index glossary (2026).

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Why it matters in practice

Increasingly unreliable at face value — privacy proxies inflate and assistant triage distorts it, especially for executives. Useful directionally; replies are the metric to plan against.

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Frequently asked questions

What is open rate?

The percentage of delivered emails registered as opened, tracked via an embedded pixel.

Why does open rate matter?

Increasingly unreliable at face value — privacy proxies inflate and assistant triage distorts it, especially for executives. Useful directionally; replies are the metric to plan against.

Cite this page

APA

B2B Data Index Research Team. (2026). What Is Open Rate? Definition & Why It Matters (2026). B2B Data Index. https://b2bdataindex.com/glossary/email-open-rate/

Markdown

[What Is Open Rate? Definition & Why It Matters (2026)](https://b2bdataindex.com/glossary/email-open-rate/) — B2B Data Index, 2026