DNSAudit.io
Track on RadarAcquired by SecurityTrails · 2020
Free DNS security scanner that audits domain configs for misconfigs and exposure risks.
- Total raised
- —
- Employees
- 1-10 employees
- Founded
- 2016
- Momentum
- —
Data updated August 2026
About
About DNSAudit.io
At a glance
DNSAudit.io is a cybersecurity company specializing in Threat & Vulnerability Management, founded in 2016 and headquartered in Orlando, United States. It was acquired by SecurityTrails in 2020.
DNSAudit.io is a free, web-based DNS security scanning and auditing tool that allows users to assess the external DNS exposure of any domain. The platform requires no sign-up and delivers results in under 30 seconds by running 40 or more automated security checks against a submitted domain name. The tool evaluates DNS configurations across three main categories: - Core DNS Configuration: Checks for correct setup of A, AAAA, MX, NS, SPF, DMARC, DKIM, CNAME, TXT records, and DNSSEC status. - Security and Exposure: Detects misconfigurations such as zone transfer exposure, wildcard DNS misconfiguration, open resolver detection, DNS rebinding risks, amplification vectors, and missing security headers in TXT records. - Attack Surface Insights: Identifies DNS signals that expand external attack surface, including AI infrastructure exposure patterns, IPs linked to botnets or malware, suspicious TXT record payloads, dangerous CDN configurations, cloud storage references, and passive DNS threat correlation. After scanning, users receive a graded security score (ranging from F to A+ along with a report detailing what is exposed and what should be remediated. The platform maintains public leaderboards showing recently scanned domains, top-scoring domains, and lowest-scoring domains. DNSAudit.io is designed for security practitioners, IT administrators, and anyone seeking to understand the DNS-level attack surface of a domain without requiring account creation or tooling setup.
Momentum
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FAQ
Frequently asked questions about DNSAudit.io
When was DNSAudit.io founded?▾
DNSAudit.io was founded in 2016.
Where is DNSAudit.io headquartered?▾
DNSAudit.io is headquartered in Orlando, United States.
Is DNSAudit.io public or private?▾
DNSAudit.io is a privately-held company.
What does DNSAudit.io do?▾
DNSAudit.io is a free, web-based DNS security scanning and auditing tool that allows users to assess the external DNS exposure of any domain. The platform requires no sign-up and delivers results in under 30 seconds by running 40 or more automated security checks against a submitted domain name. Th…
What category does DNSAudit.io operate in?▾
DNSAudit.io operates in the Threat & Vulnerability Management category of the cybersecurity market.