DNS Lookup (A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, SRV)

What Is the DNS Lookup Tool (A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, SRV) ?

DNS Lookup is a diagnostic utility that queries domain DNS records over DNS over HTTPS (DoH) using trusted resolvers like Google and Cloudflare.

Why DNS Record Analysis Matters

DNS controls how domains resolve and route traffic. Accurate record visibility is essential for uptime, email delivery, security posture, and infrastructure troubleshooting.

Who Should Use This Tool?

This tool is ideal for developers, network engineers, DevOps teams, security analysts, hosting administrators, and technical SEO professionals.

How to Run a DNS Lookup

Enter a domain, choose a resolver, select one or more record types, and run the query to receive structured DNS output in seconds.

Supports Major DNS Record Types

You can inspect A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, and SRV records for complete domain configuration analysis. For SRV, enter the full service name (for example _sip._tcp.example.com), not only the apex domain.

Secure Queries with DNS over HTTPS (DoH)

DoH encrypts DNS requests, improving privacy and reducing the risk of interception or manipulation during lookup operations.

TTL and DNSSEC Visibility for Better Diagnostics

Results include TTL values and DNSSEC-related indicators when available, helping assess cache behavior and trust validation signals.

Useful for Email, Web, and Certificate Checks

Review MX/TXT for mail authentication, CAA for certificate policy, and A/AAAA/CNAME chains for web routing and hosting verification.

Best Use Cases for Troubleshooting and Audits

Use it during DNS migrations, outage triage, domain onboarding, security reviews, and periodic infrastructure health checks.

Benefits for Reliability and Operational Control

Regular DNS lookups improve change validation, reduce misconfiguration risk, and support faster incident response across internet-facing services.