More than Twice the Passive DNS of Known Competitors

What will our Security Feed help you find lurking in your network?

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Service Offering Flexible terms and budget cycle coordination for service change-over

Massive Passive DNS Search API API or GUI, search by email, domain, name server, CIDR, malware hash, more


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Security Feed Network protection indicators your other feeds don't have, minuscule false positive rate backed by SLA, clearly tagged.


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Specialized Training Increase skills, develop security think, build fu with tools


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Unique Analysis Tools Mal4s, ZoneCruncher, Maltego Transforms, Malware DNS Activity Explorer


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Our Focus: data and tools you won't find anywhere else
  • We find significant malicious domains and IPs before criminals use them
  • Strengthen your network protection using your existing equipment + our data
  • Protect your network with Zetalytics malicious host data
We aim to help you protect your network against malicious DNS-based infrastructure from the first use of a nefarious domain in the wild, minimize false positives, and increase your team's skills with investigative tools and specialized knowledge.

Hunt Malicious Domains, Pivot on IPs, Nameservers, Email addresses, MD5 Hashes

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Pricing: API / Automated Access Request Enterprise API Access Quote

ZETAlytics Massive Passive DNS API

  • Queries: 4000
  • Results per query: 10k
  • Max CIDR block size: 22
  • Hundreds of billions of records
  • Access by API, Maltego, or ZoneCruncher

ZETAlytics Massive Passive DNS API

  • Queries: 22,000
  • Results per query: 50k
  • Max CIDR block size: 16
  • Hundreds of billions of records
  • Access by API, Maltego, or ZoneCruncher
  • Wildcard* queries

ZETAlytics LLC

5600 Post Road #244
East Greenwich RI

+1(401) 227-4112

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Massive Passive DNS

More than twice the passive DNS
of known competitors

Get Started Free

Get Started Free

About the Company

Founder April Lorenzen
Zetalytics serves the enterprise, government, law enforcement, and security industries. We offer unrivalled geographic diversity and exclusive global network visibility in searchable datasets for use by cyber security analysts. Our team has grown over the years by mentoring youth while cultivating age and wisdom, selecting only a certain kind of person - perhaps best described as dedicated, DNS-obsessed oddballs. As a result, our threat intel feeds are unlike any other and consistently protect customer networks from stealthy malicious domains on first sight. Zetalytics Security Feeds integrate easily into existing network protection hardware such as firewalls and SEIM, pushing extra protection near real time. Forensics, incident response and threat intel teams will benefit from the massive historical search API as well as the use of Zetalytics data tools. Advanced trainings are conveniently located between New York and Boston.
You guys definitely have IOCs/malicious resources that others do not have :)
D.B. (Sr Threat Analyst)
Flat out impressive.
Kevin K. (CEO)
I remember you - your [darkweb] presentation at [REDACTED] last year was riveting.
Steve J, (Sr Systems Engineer)
Great tools and training offered by Zetalytics.
You should be charging us more! (D8s service user)
Matt Jonkman, Emerging Threats
ZoneCruncher has been an extremely valuable tool in our anti-spam investigations, allowing us to proactively scan for and block related malicious resources before they even enter our network. Our team is able to more efficiently - and effectively - do their jobs.
RSG Labs
I frequently credit you as the creator of "NS reputation" analysis. (read more)
David Dagon, post-doc research scientist at Georgia Tech
Thanks again for the awesome webex!!
Matt (a different Matt)
Actually thanks to Zone Cruncher and the insight it has already given I have found multiple security issues.
ZoneCruncher User, August 2017