How to Look Up DNS Records with Claude
Look up DNS records with Claude and ToolRouter. Query A, MX, TXT, and all DNS record types.
ToolDNS DomainClaude turns DNS investigation into a deep, conversational security review where each finding leads naturally to the next check. Ask Claude to look up your records, chain that into an SSL verification, cross-reference with email authentication settings, and explain the security implications of every configuration detail it finds. Its analytical reasoning makes it ideal for thorough domain audits where understanding the "why" behind each record matters as much as seeing the data.
Connect ToolRouter to Claude
1Go to Settings → Connectors → Add custom connector
2Enter the details below and click Add
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Done — works on Claude chat, desktop, and mobile
Steps
Once connected (see setup above), use the DNS Domain tool:
- Ask Claude: "Look up all DNS records for example.com using dns-domain"
- Claude runs lookup_dns and returns the complete DNS record set
- Ask follow-up questions about specific records or potential issues
Example Prompt
Try this with Claude using the DNS Domain tool
Look up all DNS records for our domain example.com. Show me A, MX, TXT, CNAME, and NS records.
Tips
- Ask Claude to explain what each record does if you are unfamiliar with DNS
- Check MX records when troubleshooting email delivery issues
- Look at TXT records to verify SPF, DKIM, and domain ownership entries