Domain Security Scanner vs DNSViz

Looking for a DNSViz alternative? Here's an honest, side-by-side comparison to help you choose the right domain security tool for your needs.

Quick Verdict

DNSViz is the definitive tool for DNSSEC chain of trust analysis and visualization, trusted by DNS experts worldwide. However, it only covers DNSSEC and produces complex output. Domain Security Scanner provides DNSSEC checking alongside five other security checks in a single, easy-to-understand scan result.

What is DNSViz?

DNSViz is a free, open-source tool that provides detailed visualization of the DNSSEC chain of trust for any domain. Developed as an academic project, it offers the most thorough DNSSEC analysis available, showing the complete delegation and signing chain with interactive diagrams.

DNSViz Strengths

  • Best-in-class DNSSEC chain of trust visualization
  • Detailed delegation and signing chain analysis
  • Completely free and open source
  • Academic-grade accuracy and thoroughness

DNSViz Limitations

  • DNSSEC only — no other security checks
  • No email authentication (SPF, DMARC, DKIM)
  • No SSL/TLS certificate analysis
  • Complex output that can be difficult for non-experts

Feature Comparison

FeatureDomain Security ScannerDNSViz
SPF Check
DMARC Check
DKIM Check
SSL/TLS Check
Security Headers
DNSSEC CheckDNSViz provides the most detailed DNSSEC visualization available
All-in-One Scan
DNSSEC VisualizationDNSViz creates interactive chain of trust diagrams
Chain of Trust Analysis
Basic
Free Tier
3 scans/day
Unlimited
No Account Required
Starting Price
Free
Free

Pricing Comparison

Domain Security Scanner

Free

3 scans/day, no account required

  • All 6 security checks included
  • No sign-up required
  • Pro plans from $29/mo

DNSViz

Free

Free, open source project

Visit https://dnsviz.net for current pricing.

Frequently Asked Questions

Is Domain Security Scanner a good DNSViz alternative?

For general domain security scanning, yes. DNSViz provides the most detailed DNSSEC analysis available, while Domain Security Scanner covers DNSSEC plus SPF, DMARC, DKIM, SSL, and security headers. If you need deep DNSSEC debugging, use DNSViz. For a broad domain security audit, use Domain Security Scanner.

Does DNSViz check SPF, DMARC, or SSL?

No. DNSViz focuses exclusively on DNSSEC chain of trust visualization and validation. It does not check email authentication records (SPF, DMARC, DKIM), SSL/TLS certificates, or HTTP security headers. Domain Security Scanner covers all of these.

Should I use DNSViz or Domain Security Scanner for DNSSEC?

For deep DNSSEC debugging and chain of trust visualization, DNSViz is unmatched. For a quick DNSSEC validation as part of a broader domain security audit, Domain Security Scanner is more practical. The two tools complement each other well.

Try Domain Security Scanner Free

See why thousands choose Domain Security Scanner over DNSViz. Run a comprehensive security scan in seconds — no account required.

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