DNS Security Monitoring and Compliance

Prevent DNS outages, expired certificates, and domain takeovers before they cost you revenue or an audit finding. Continuous monitoring across every domain you own, with a daily security score and the exact fix for everything failing.

DNS SecurityDNS Security

dns-security-compliance

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Trusted by 2,000+ MSPs

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What is DNS Security Compliance?

DNS Security Compliance is an automated, continuous monitoring capability native to PowerDMARC. It evaluates your domains across several live security checks, including tracking dangling CNAMEs, nameserver health, certificate lifecycles, registration integrity, and brand impersonation, and provides a daily security score with step-by-step troubleshooting guidance.

Why DNS Security Is Critical to Your Business

Protect revenue and customer trust by avoiding website blackouts

When an SSL certificate or a domain registration expires, your public-facing services go offline instantly.

Stop brand hijacking through your own infrastructure

A dangling CNAME record lets an attacker serve malicious content from your own trusted subdomain, under your name in the URL.

Shut down phishing campaigns aimed at your brand and customers

Prevent attackers from registering look-alike domains and switching on mail servers before launching spear-phishing attacks.

Get through security audits and vendor reviews faster

Get instant exportable evidence for DNSSEC, CAA policies, transfer locks, and certificate hygiene that come up in SOC 2, ISO 27001, and PCI DSS reviews.

Fix the Right Things First

Most teams already know something's wrong somewhere in their DNS. The harder question is what to fix first — and that's exactly what DNS Security Monitoring answers.

Know what to fix first

Every failing check is ranked by severity, with step-by-step instructions to resolve it — so your team works the highest-risk issues first instead of guessing through a flat list.

Cut through alert noise

Alerts are prioritized by real risk, so your team only hears about what matters. Reviewed and accepted items can be ignored in one click — and restored anytime — keeping your score honest.

See every DNS change

Every record change is logged continuously with before-and-after values, so anything unauthorized or unexpected surfaces immediately — not at your next audit.

Align with NIST SP 800-81r3 DNS Security Guidelines

Stay aligned with the National Institute of Standards and Technology's framework for DNS infrastructure security. NIST SP 800-81r3, the Secure DNS Deployment Guide, sets out detailed recommendations for protecting DNS components — and DNS Security Compliance delivers the continuous monitoring these guidelines call for.

Align with NIST SP 800-81r3 DNS Security Guidelines

Achieve and maintain alignment with the National Institute of Standards and Technology’s framework for DNS infrastructure security. The NIST SP 800-81r3: Secure DNS Deployment Guide provides detailed recommendations for protecting DNS components, and our DNS Security Compliance feature delivers the continuous monitoring capabilities required to meet these guidelines.

NIST Compliance Mapping

NIST Section NIST Recommendation How PowerDMARC DNS Security Compliance Helps
3.6.1 Dangling CNAME Exploitation DNS Health Checks automatically identify and flag dangling CNAME records vulnerable to subdomain takeover.
3.6.2 Lame Delegation Exploitation DNS Health Checks monitor nameserver availability and delegation integrity to prevent hijacking.
3.6.3 Look-Alike Domain Exploitation Look-Alike Domain Monitoring identifies and alerts on impersonating domains used for phishing.
3.1 Zone Transfer Threats DNS Record Monitoring detects unauthorized record changes and alerts on AXFR zone transfer exposure.
2.2.3 DNS Hygiene and Best Practices Unified Certificate Expiry Calendar tracks all upcoming SSL/TLS and domain registration renewals in one view.
3.8 DNSSEC Signing Considerations Automated DNSSEC health checks continuously validate the integrity of your DNSSEC chain of trust.

One DNS Health Check Score for Every Domain

Get a clear 0–100 security score and A–F grade based on live checks. Automated daily scans keep your score up to date, while our built-in Security Score Trend helps you track improvements and spot configuration changes over time.

DNS Security

What DNS Security Monitoring Covers

Category Coverage
DNS security health checks Nameserver availability, DNSSEC, CAA records, resilience, performance, SOA config, dangling CNAMEs
SSL certificate monitoring Expiry, hostname mismatch, weak keys, deprecated TLS, chain validation, self-signed certs
Domain registration monitoring Domain expiry, registrar/registrant changes, transfer lock, EPP status
Look-alike domain monitoring New registrations, active MX detection, threat scoring, infrastructure changes
DNS record monitoring Record change detection, nameserver sync, AXFR exposure
Security grade Composite A–F score with trend tracking

Domain Security Monitoring Features

Ranked failing checks with fix guidance

Every failing check is prioritized by criticality with step-by-step remediation guidance and a direct, one-click link to the relevant Knowledge Base article.

Dangling CNAME Detection High
DNSSEC Validation (Full Chain) High

Look-alike domain detection with MX alerting

Identifies newly registered typosquatted domains targeting your brand and alerts instantly when an impersonating domain provisions active MX records for phishing.

shop-0xample.com MX Active
examp1e-secure.io MX Active

SSL certificate expiry monitoring calendar

Consolidates upcoming SSL/TLS certificate and domain registration expiries for the next 90 days into a single, color-coded calendar based on urgency.

Urgent Upcoming Healthy

Additional Core Capabilities

Security score and grade

Continuous 0–100 score and A–F grade updated daily from 46 live checks.

Real-time DNS event feed

Chronological audit log showing record modifications, AXFR leaks, and nameserver changes with before/after values.

Ignore and restore checks

One-click suppression of accepted false positives, automatically recalculating your score while remaining fully restorable.

Events by category and severity

Interactive donut chart by event category paired with weekly stacked bar charts by severity level.

Analyzer report export

On-demand, branded PDF summaries and flat CSV exports for executive updates and compliance audits.

CSV event export

Complete filtered DNS event logs available for full data export and incident response workflows.

How DNS Security Compliance works

1

Configure

Add domains via a 4-step wizard, choose from 34+ event types, and set notification groups.

2

Monitor

Daily automated scans refresh scores, failing checks, expiry timelines, and look-alike tracking.

3

Review

Review prioritized fixes on the Summary dashboard and follow step-by-step remediation.

4

Track

Follow configuration history using the Security Score Trend and before/after event feed.

5

Report

Run on-demand Analyzer assessments and export shareable PDF or CSV reports.

More than a DNS Monitoring Tool

Live checks across DNS health, certificates, and registration in one score

Actionable fix guidance per failing check - a clear remedy, not just an alert

Ignore workflow for known false positives - keeps scores accurate to real risk

Unified expiry calendar merging SSL certificates and domain registrations

Look-alike domain detection with MX activation alerting

Change-level detail with before → after values for every DNS modification

Shareable PDF/CSV reporting without granting platform access

Native PowerDMARC integration - no separate tools or logins

DNS Security Monitoring FAQs

What is DNS security monitoring?
DNS security monitoring is the continuous verification of DNS configurations, cryptographic records (DNSSEC, CAA), nameserver health, and registration status to catch vulnerabilities, dangling CNAMEs, expiring certificates, and look-alike threats before outages or breaches occur.
How often does PowerDMARC scan my DNS?
Scans run on a daily automated cadence. Administrators can also trigger on-demand Analyzer scans anytime to verify recent changes.
What are the DNS security checks?
The checks cover DNS health parameters, SSL certificate checks, domain registration checks, look-alike domain detection, DNS record changes, and overall security grading.
Does it include SSL certificate expiry monitoring?
Yes. It continuously verifies TLS protocols, cryptographic strength, and chain integrity while placing all upcoming certificate expiries into a forward-looking 90-day calendar.
How does look-alike domain monitoring work?
It scans global registries for permutations of your brand and alerts your team immediately if an impersonating domain activates MX records to stage a phishing attack.
Can I exclude false positives from my score?
Yes. The one-click ignore workflow removes accepted exceptions from score computations. Ignored items can be reviewed and restored at any time.
Can I export a DNS security report?
Yes. You can export complete domain assessments, category summary tiles, and granular check results as branded PDFs or flat CSVs.
How is this different from a DNS monitoring tool?
Standard DNS tools only track server uptime and network latency. PowerDMARC unifies DNS health, cryptographic certificates, registration integrity, and brand protection into a single actionable score.

Secure Your Entire DNS Attack Surface Today

Track DNS health, dangling DNS records, certificate expiries, domain registrations, and brand impersonation in one unified score.