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DNS Lookup: Check A, AAAA, MX, TXT, CNAME & NS Records

Click DNS lookup Check DNS records for a domain or subdomain, confirm website and email setup, and review TTL values for troubleshooting.

DNS lookup

DNS record lookup

Query common DNS records for any hostname.

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This lookup uses DNS-over-HTTPS and may differ from your local resolver.

Lookup results

Run the lookup to see results.

Results will appear here after a lookup.

Why run a DNS lookup online

A DNS lookup online helps you confirm what records a resolver is currently returning for a domain or subdomain. It is useful before migrations, after nameserver changes, during mail setup, when a subdomain does not open, or when SPF, DKIM, DMARC, verification, and other TXT-based configurations do not seem to work yet.

How the test runs

The tool sends a DNS query for the hostname and record type you choose, then shows the returned values and TTL in your browser. You can switch between A, AAAA, CNAME, MX, TXT, and NS to compare how different parts of the setup look right now. Each lookup is a fresh query for the selected hostname and record type.

How to interpret results

Compare the returned records with what you expect from your DNS provider, hosting platform, or mail service. If the expected record is missing, points to the wrong destination, or has an old TTL, that often explains why a website, subdomain, or email flow is failing. TXT records are especially important for SPF, DKIM, DMARC, domain verification, and other ownership or delivery checks.

  • A and AAAA records map a hostname to IPv4 or IPv6 addresses.
  • CNAME records point one hostname to another hostname.
  • MX records show which servers should receive email for the domain.
  • TXT records often hold SPF, DKIM, DMARC, verification, or service configuration values.
  • NS records show the authoritative nameservers for the zone or delegated hostname.

This lookup reports what the selected query returns at lookup time. It does not edit DNS, it does not guarantee global propagation across every resolver, and it does not replace provider-side zone management or a full DNS propagation checker.

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Frequently Asked Questions

What does this DNS lookup check?

This DNS lookup checks the records returned for the hostname and record type you choose. It helps confirm whether a domain, subdomain, or mail setup is pointing where you expect right now.

How does the DNS lookup work?

The tool sends a DNS query for the hostname and selected record type, then shows the returned values and TTL. You can run repeated lookups with different record types to inspect the same domain from several angles.

What record types can I check here?

This page supports A, AAAA, CNAME, MX, TXT, and NS lookups. Those cover the most common web, email, verification, and delegation checks for a domain or subdomain.

How do I use DNS lookup for website troubleshooting?

Check whether the hostname resolves to the expected A, AAAA, or CNAME destination. If the returned value is missing or points to the wrong target, that usually explains why the site or subdomain is not opening correctly.

Can I use this DNS lookup for email setup?

Yes. MX records help confirm mail routing, and TXT records help verify SPF, DKIM, DMARC, and provider verification values. If mail delivery or authentication is failing, these are often the first records to compare.

Why are my DNS records missing or different from what I configured?

The zone may not be updated correctly yet, you may be querying the wrong hostname, or caches and propagation may still be in play. Compare the expected value from your provider with the exact hostname and record type you are testing.

What does TTL mean in DNS lookup results?

TTL is the cache lifetime for the record returned by the resolver. A higher TTL can mean old values remain cached longer after a DNS change, so it helps explain why updates may not appear instantly everywhere.

Why do DNS lookup results differ between tools?

Different tools can use different resolvers, caches, or query paths. That is why one lookup tool may still show an old value while another already shows the new record.

Does this DNS lookup show global propagation everywhere?

No. It shows the result returned for the lookup at that moment, not a worldwide propagation map. For resolver-by-resolver comparisons across regions, you need a dedicated propagation checker.

Can this DNS lookup change or fix my records?

No. It is a read-only lookup tool that shows the records returned by the query. Any actual DNS change has to be made in your DNS provider or hosting control panel.

Is this DNS lookup safe to use?

Yes. It only performs a DNS query for the hostname you enter and displays the returned records. It does not need access to your files, server, or registrar account.

When should I run a DNS lookup online?

Use it before and after DNS changes, during migrations, when email authentication is failing, when a subdomain points to the wrong place, or when support asks you to confirm live records. It is one of the fastest first checks for domain configuration issues.