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DNS Lookup

A DNS (Domain Name System) lookup retrieves the DNS records associated with a given domain name. These records are stored as text-based entries on DNS servers and contain essential information about how a domain functions, including its IP address, alias names, mail servers, and other configuration details.

There are many different types of DNS records, each serving a specific purpose in directing internet traffic and managing domain behavior. This tool allows you to look up the most commonly used records, including A, AAAA, CNAME, NS, MX, SOA, and TXT. Together, these records help determine how visitors reach your website, how email is delivered, and how your domain is verified and managed.

To retrieve the DNS records for a domain, simply enter a valid domain name into the field below. The tool will query the appropriate DNS servers and display the results in a clear, easy-to-read format, making it simple to review and understand your domain’s DNS configuration.

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Enter Domain Name

You can leave off http:// or https:// and anything after the domain.

How to use it

The DNS Lookup online tool is handy to find out certain DNS records for a domain name.

  1. Enter a domainJust enter a domain name into the field above and click on ‘Lookup DNS’.
  2. Read the recordsYou will then be presented with a range of records that are associated with the entered domain name.
  3. Record typesCurrently the following records are displayed: A, AAAA, CNAME, NS, MX, SOA and TXT.
  4. Making changesIf you need to update a record, please login into the service provider that hosts the domain.
  5. Check worldwidePlease use our DNS Propagation Checker to check records across a variety of servers around the world.

What the records are for

A and AAAA

Say which IP address a name points to. A is for IPv4, AAAA is for IPv6.

MX

Say where email for the domain goes. The mail server with the lowest priority number is tried first.

TXT

Holds text such as SPF, DKIM and DMARC email settings, and codes that prove you own the domain.

Frequently asked questions

What is a DNS lookup?

It asks the Domain Name System for the records stored for a domain, such as the IP address of the website and the mail servers. It is what your browser does behind the scenes before it opens a page.

Why do I see “No records found”?

That record type is not set for this name. A website usually has an A record but no CNAME, and the other way around. The www name is often a CNAME while the bare domain is an A record.

What does TTL mean?

Time to live, in seconds. It says how long other servers may keep a copy of the record before asking again. A low TTL means changes spread faster.

I changed a record but it still shows the old value. Why?

The answer can come from a cache that has not expired yet. Wait for the TTL to pass, then check again, or use the DNS Propagation Checker to see how far the change has spread.

Can I look up a subdomain?

Yes. Enter the full name, such as mail.example.com or _dmarc.example.com.

Why can’t I look up some names?

Only public domain names can be looked up. IP addresses and private names such as .local or .internal are refused.

Related tools

DNS Propagation Checker

This tool will check a variety of different DNS records against a list of DNS servers located around the world.

Whois Lookup

Find out who registered a website and check a domain name with our Whois lookup tool.

HTTP Headers

View the headers of the site of your choice, exactly what your browser reads.

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Buy me a coffee