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Censys vs GreyNoise

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CensysAttack Surface Management
GreyNoiseThreat Intelligence Platforms
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Attack Surface Management

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Attack Surface Management

Overview
Focus
Attack Surface Management
Threat Intelligence Platforms
Product
Attack surface management platform providing continuous internet-wide scanning and discovery to map and monitor external-facing assets and exposures.
Internet-wide background noise analysis platform helping security teams reduce alert fatigue by contextualizing internet scanning activity.
Headquarters
Ann Arbor, Michigan
Washington, DC
Company size
201-500 employees
51-200 employees
Founded
2017
2017
Pricing details
Published rate
Free
Free options
Free plan
Free plan, Free trial
Source updated
Oct 29, 2026
Oct 29, 2026

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Attack Surface Management