DNS Lookup Tool

DNS Record Checker

Run instant DNS lookups across A, AAAA, MX, TXT, CNAME, NS, SOA, and SRV records. Troubleshoot domain issues, validate configurations, and export results for documentation.

Lookup DNS Records
Enter a domain, choose record types, and run your DNS check instantly.
Select the DNS record types you want to query. All records are selected by default.
Daily limit: 0 of 3 lookups used. Resets at midnight.
What You Can Check
Understand the purpose of each record type.
A & AAAA Records

Resolve the IPv4 and IPv6 addresses that point visitors to your web server. Verify hosting changes and propagation.

MX Records

Confirm mail routing, priorities, and hostnames to prevent email delivery issues.

TXT Records

Validate SPF, DKIM, DMARC, and verification tokens for services like Google Search Console or Microsoft 365.

CNAME & NS Records

Inspect alias records and authoritative name servers to ensure correct routing to third-party services and registrars.

SOA & SRV Records

Review zone ownership, TTL strategy, and service discovery records for advanced configurations.

DNS Troubleshooting Tips
Propagation

DNS changes can take up to 48 hours to propagate globally. Use the tool to monitor updates across record types.

TTL Optimization

Lower TTLs help when making frequent changes, while higher values reduce query load once records stabilize.

Email Delivery

Incorrect MX, SPF, or DMARC syntax can block messages. Double-check values and priorities after updates.

Security

Monitor TXT records for unauthorized changes and enable DNSSEC where supported to guard against tampering.

Helpful Resources
DNS Records Explained

Learn what each DNS record type does, when to use it, and best practices for managing your zone files.

Email Authentication Checklist

Validate SPF, DKIM, and DMARC records to improve inbox placement and safeguard your brand identity.