DNS Lookup — Check DNS Records Online

Instant DNS record lookup for any domain. Supports all record types: A, AAAA, MX, TXT, NS, CNAME, SOA, PTR, SRV. DNS propagation check across 15+ resolvers worldwide.

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DNS record types

A / AAAA — Server IP address (IPv4/IPv6)
MX — Mail servers
TXT — SPF, DKIM, verification
NS — Authoritative nameservers
CNAME — Aliases

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A / AAAAIPv4 and IPv6 host addresses

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MX RecordsDomain mail servers

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TXT / SPFVerification & anti-spoofing

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NS / SOAName servers & zone authority

What are DNS Records?

DNS (Domain Name System) translates domain names into IP addresses. DNS records are instructions that define where to route traffic, email, and how to verify domain ownership.

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Complete Lookup

Query all record types — A, AAAA, MX, NS, TXT, CNAME, SOA — in a single request.

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Instant Results

Direct queries to authoritative servers. Results in milliseconds, no caching.

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Security Checks

SPF, DKIM, and DMARC analysis to evaluate email protection against spoofing and phishing.

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Export & History

Save check results. Compare DNS records before and after registrar changes.

Common Mistakes

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Missing SPF recordWithout SPF, emails may land in spam. Add a v=spf1 TXT record.

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Single NS serverIf the only NS fails, the domain becomes unreachable. Use at least 2 NS servers.

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CNAME conflicting with other recordsCNAME cannot coexist with MX or TXT on the same name — this violates RFC.

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TTL set too highWith 86400s TTL, DNS changes take a full day. Lower TTL to 300 before migrations.

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Missing PTR recordMail servers check PTR. Without it, emails may be rejected.

Best Practices

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Set up SPF + DKIM + DMARCThe trio of records that protects your email from spoofing and improves deliverability.

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Use 2+ NS serversDistribute NS servers across different networks for redundancy.

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Lower TTL before migrationSet TTL to 300 at least 24-48 hours before an IP change for fast propagation.

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Verify DNS after changesAfter updating records, confirm changes propagated correctly and no errors remain.

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Add a CAA recordCAA restricts which Certificate Authorities can issue SSL certificates for your domain.

Frequently Asked Questions

How long does DNS propagation take?

Usually from a few minutes to 48 hours, depending on the TTL and DNS provider.

Is DNS lookup free?

Yes, completely free with no registration.