Hardenize review
Broad perimeter monitoring with DNS and DNSSEC coverage for security teams.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Hardenize is a cloud-managed Internet asset inventory and monitoring service for organizations that need visibility across domains, subdomains, hosts, certificates, and network assets. It is suited to security teams monitoring broad Internet exposure rather than teams looking only for a narrow DNS dashboard. Coverage spans DNS and DNSSEC, authoritative nameservers, TLS and PKI, application security, SMTP configuration, Certificate Transparency, and TCP and UDP ports.
The published plans are Business and Enterprise, with pricing handled through contact with sales. Both plans include host discovery, daily network and security configuration monitoring, certificate inventory and expiration monitoring, automated Certificate Transparency monitoring, REST APIs, two-factor authentication, and Single Sign-On. A 14-day free trial is available. Web and API access support both analyst workflows and programmatic monitoring, while integrations with AWS, Azure, and Google Cloud Platform help connect cloud environments to the wider asset view.
Hardenize’s main distinction is breadth: automated discovery and continuous perimeter monitoring extend DNS checks into certificates, TLS, application security, SMTP, ports, and cloud-linked assets. DNS and DNSSEC monitoring covers IPv4 and IPv6, with authoritative nameserver and zone inspection, resolution checks, and nameserver health monitoring. That scope can help organizations investigate related exposure instead of treating DNS in isolation. Teams seeking a focused DNS monitoring product may prefer a narrower tool, while security teams responsible for broad Internet-facing infrastructure should find Hardenize the closer fit.
Hardenize pros and cons
- Where it wins
- Automates domain, subdomain, host, certificate, and network asset discovery
- Monitors DNS and DNSSEC across IPv4 and IPv6, including nameserver health
- Adds REST APIs, event notifications, and AWS, Azure, and Google Cloud integrations
- Where it doesn't
- Business and Enterprise pricing requires contacting sales
- There is no free plan
- Its broad security coverage may exceed the needs of DNS-only teams
Hardenize fact sheet, pricing and score →
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