🔍 DNS Lookup

Check domain DNS records: A, AAAA, MX, NS, TXT, CNAME, SOA

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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.

DNS Lookup and Analysis

Query DNS records for any domain: A, AAAA, CNAME, MX, NS, TXT, SOA, SRV, CAA, and PTR. Our DNS lookup tool queries authoritative nameservers and shows TTL values, propagation status, and record details. Essential for domain configuration, email deliverability troubleshooting, and DNS migration verification.

Common use cases include verifying MX records for email delivery, checking NS delegation after domain transfer, validating SPF/DKIM/DMARC TXT records, and monitoring A/AAAA records for IP changes. The tool supports both forward and reverse DNS lookups.

After checking DNS records, use our SSL checker to verify the certificate matches the domain, or WHOIS lookup to check domain registration details. For ongoing monitoring, set up uptime monitoring to get alerted when DNS changes affect your site's availability.

Frequently Asked Questions

What is DNS?

DNS (Domain Name System) is a system that translates domain names into IP addresses. When you type a website address into your browser, a DNS server finds the corresponding IP address to connect to.

What DNS record types exist?

Main types: A (IPv4 address), AAAA (IPv6), CNAME (alias), MX (mail servers), NS (name servers), TXT (text data, SPF, DKIM), SOA (zone parameters), SRV (services), CAA (certificate authorities).

How long do DNS changes take?

DNS propagation typically takes from a few minutes to 48 hours, depending on the TTL of old records and DNS resolver caching. Lowering TTL before changes speeds up the process.

What is TTL in DNS?

TTL (Time to Live) is the duration in seconds that a DNS record is cached by resolvers before they query the authoritative server again. Lower TTL means faster updates but more DNS queries.

How to check DNS records of a domain?

Enter the domain name in the form above, select the record types you want to check, and click Lookup. The tool will query DNS servers and display all matching records with their values and TTL.

What is an MX record and why is it needed?

An MX record (Mail Exchange) specifies mail servers for a domain. Without correct MX records, email will not be delivered. The priority number determines the order in which servers are used — lower value = higher priority.

How to set up SPF and DKIM?

SPF and DKIM are configured via DNS TXT records. SPF specifies which servers can send mail on behalf of the domain. DKIM adds a cryptographic signature to emails. Both mechanisms are critical for email deliverability and spoofing protection.