DNSAudit.io vs is-website-vulnerable: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
DNSAudit.io is a free security scanning tool by DNSAudit.io. is-website-vulnerable is a free security scanning tool. Compare features, ratings, integrations, and community reviews side by side to find the best security scanning fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
DevSecOps teams managing frontend supply chain risk should use is-website-vulnerable because it catches known JavaScript library vulnerabilities that most web application scanners deprioritize, and it's free, which removes the friction of piloting before committing budget. The 2,021 GitHub stars reflect actual adoption by teams building CI/CD scanning into their pipelines rather than relying on manual assessments. Skip this if you need coverage beyond frontend dependencies or want detection across your entire application stack; is-website-vulnerable is deliberately narrow, scanning only what Snyk's database knows about, not unknown or server-side vulnerabilities.
Data verified May 2026
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DNSAudit.io
Free DNS security scanner that checks domains for misconfigs and exposure.
is-website-vulnerable
A command-line tool that scans websites to detect publicly known security vulnerabilities in frontend JavaScript libraries using Snyk's vulnerability database.
Side-by-Side Comparison
Feature
DNSAudit.io
is-website-vulnerable
Pricing Model
Free
Free
Category
Security Scanning
Security Scanning
Verified Vendor
Deployment & Fit
Deployment Type
Cloud
Company Size Fit
Startup, SMB, Mid-Market, Enterprise
Open Source
GitHub Stars
2,021
Last Commit
Sep 2025
Company Information
Company
DNSAudit.io
Headquarters
Founded, Size & Funding
Use Cases & Capabilities
DNS Security
Misconfiguration
DMARC
SPF
DKIM
Security Scanning
Reconnaissance
DNS Rebinding
Web Security
NIST CSF 2.0 Coverage
NIST CSF 2.0 Mapping
Access NIST CSF 2.0 data from thousands of security products via MCP to assess your stack coverage.
Access via MCPCore Features
- 40+ automated DNS security checks per domain scan
- DNS security score and letter grade (A+ to F)
- SPF, DMARC, and DKIM validation
- DNSSEC status check
- Zone transfer exposure detection
- Open resolver and DNS amplification vector detection
- DNS rebinding risk identification
- Passive DNS threat correlation (botnet/malware-linked IPs)
- No features listed
Community
Community Votes
2
0
Bookmarks
User Reviews
5.0/5(2 reviews)
Recent Reviews
5/5
I started using DNSAudit.io to do a quick sanity check on a client's domain before a migration. Ended up finding a wildcard DNS entry that had been sitting there for years, completely forgotten. The scan is fast and doesn't require an account, which matters when you're jumping between client environments. The scoring breakdown is actually useful, not just a traffic light. It tells you what's wrong and why. And I really love they also explain how to fix all the issues you find in the results!! Also i have started using its api as well and its works amazingly good for integrations
5/5
Solid free tool for a first pass on DNS security posture. Useful if you need to hand a non-technical stakeholder something with a score and clear findings. Checks zone transfer exposure, SPF/DMARC/DKIM, DNSSEC, and a bunch of other things I normally have to check manually with dig.
No reviews yet
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