Look Up DNS Records
Query DNS records for any domain to inspect A, AAAA, MX, CNAME, TXT, and NS configurations.
Audit DNS Security
Review DNS configuration for security issues including missing records, open resolvers, and misconfigured entries.
ToolDNS misconfigurations are a common attack vector. Missing SPF records let anyone spoof your email. Dangling CNAME records pointing to decommissioned services can be hijacked. Wildcard records can expose internal subdomains. These issues are easy to miss and expensive to exploit.
Using lookup_dns and check_ssl together, you can audit your domain for common security issues. Check for missing or misconfigured records, verify that SSL certificates are valid and properly chained, and identify entries that could be exploited by attackers.
Agent Guides
Claude
- Connect ToolRouter: claude mcp add toolrouter -- npx -y toolrouter-mcp
- Ask Claude: "Audit the DNS security for example.com using dns-domain -- check for misconfigurations and vulnerabilities"
- Claude checks DNS records and SSL certificates, flagging issues
ChatGPT
- Configure ToolRouter in ChatGPT
- Ask: "Audit the DNS security configuration for example.com"
- ChatGPT examines records and certificates, reporting any issues
Copilot
- Add ToolRouter to Copilot MCP config
- In Copilot Chat: "Run a DNS security audit on our production domain"
- Copilot checks records and SSL, reporting security issues
OpenClaw
- Connect ToolRouter: openclaw mcp add toolrouter -- npx -y toolrouter-mcp
- Ask OpenClaw: "Audit DNS security for example.com"
- OpenClaw checks records and certificates for security issues
Related Use Cases
Check DNS Propagation Status
Verify whether recent DNS changes have propagated and the new records are live.
Verify SPF and DKIM Records
Check that email authentication records are correctly configured to prevent spoofing and improve deliverability.
Monitor DNS Changes
Check DNS records and WHOIS data to detect unauthorized or unexpected changes to your domain configuration.