DNS Lookup Tool
Query DNS records for any domain. Check A, AAAA, MX, TXT, NS, CNAME, SOA records and email security (SPF, DKIM, DMARC).
Quick:
Querying DNS records...
About DNS Lookup
DNS (Domain Name System) translates human-readable domain names into IP addresses. This tool queries DNS servers to retrieve all record types associated with a domain.
DNS Record Types Explained
- A Record — Maps domain to IPv4 address (e.g., 192.168.1.1)
- AAAA Record — Maps domain to IPv6 address
- MX Record — Mail exchange servers with priority
- TXT Record — Text data including SPF, DKIM, DMARC
- NS Record — Authoritative name servers for the domain
- CNAME Record — Canonical name (alias) pointing to another domain
- SOA Record — Start of Authority with zone information
- PTR Record — Reverse DNS lookup (IP to domain)
- CAA Record — Certificate Authority Authorization
Email Security Records
- SPF (Sender Policy Framework) — Specifies which servers can send email for your domain
- DKIM (DomainKeys Identified Mail) — Adds digital signature to verify email authenticity
- DMARC (Domain-based Message Authentication) — Policy for handling failed SPF/DKIM checks
Common Use Cases
- Troubleshooting — Verify DNS propagation after changes
- Email Deliverability — Check SPF, DKIM, DMARC configuration
- Security Audits — Review CAA records and mail server setup
- Migration — Document existing DNS configuration