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ZeroBounce
zerobounce.net · Activity Data · scored Apr 2026ZeroBounce hits 96-97% accuracy, pricing climbs at scale.
Best forEmail marketers needing verified, engagement-scored lists with enterprise-grade compliance.
Email verification and engagement tool that tracks subscriber activity for up to 365+ days.
Upside
- 96-97% verified accuracy in tests
- SOC 2, ISO 27001, HIPAA certified
- Engagement tracking up to 365+ days
Catch
- Pricing scales steeply past 25k emails
- 2,000-credit minimum purchase required
- No public API listed
Editor's takeZeroBounce's Activity Data ranks first among 6 tools in this category at 9.2 overall. Its security certifications and independently verified 96-97 percent accuracy set it apart from lighter validation tools. The main tradeoff is cost, since pricing climbs fast for senders above 25,000 emails a month.
How accurate is ZeroBounce's email verification?
Independent testing found roughly 96 to 97 percent real-world accuracy, placing it among the top performers in the email verification market, according to a third-party review.
What compliance certifications does ZeroBounce hold?
ZeroBounce is ISO 27001:2022, SOC 2 Type 2, and HIPAA certified, and also states GDPR and CCPA compliance, according to its trust center.
The evidence: 6 criteria, 1 penalty (−0.05 points)
Score adjustments−0.05 points in total








