Online tool

DNS Lookup Tool Online

Query common DNS record types for one domain or hostname.

Requires network requestNo sign-inWe only use your input to perform the requested lookup.
DNS Lookup online tool preview
DNS Lookup Tool Online Query common DNS record types for one domain or hostname.

DNS Lookup

Look up DNS records such as A, AAAA, CNAME, MX, TXT, and NS.

What this tool does

This online DNS lookup queries the selected record type for a hostname and returns the current resolver answer, TTL and priority when available.

What it measures or changes

  • A and AAAA address records
  • CNAME aliases and MX mail routing
  • TXT, NS, SOA and CAA records
  • TTL, priority and normalized hostname

Technical details

  • Enter a domain or hostname, not a complete URL; protocol, path and query are removed during normalization.
  • TTL controls caching. Different resolvers can temporarily return different answers.

Common errors

  • Looking up the root domain when the issue affects www.
  • Calling one resolver result a global propagation test.

Best practices

  • Query the exact hostname and record type.
  • Compare the answer with the DNS provider before changing production records.

Examples

Verify a web host or CDN change.

Input example
example.com — A
Output example
A 93.184.216.34

Enter a domain or hostname, not a complete URL; protocol, path and query are removed during normalization.

Check mail routing and SPF records.

Input example
www.example.com — CNAME
Output example
MX 10 mail.example.com

TTL controls caching. Different resolvers can temporarily return different answers.

Collect resolver evidence for a support ticket.

Input example
example.com — MX / TXT
Output example
TXT v=spf1 …

Enter a domain or hostname, not a complete URL; protocol, path and query are removed during normalization.

Privacy note

This lookup sends only the entered domain and selected record type to the LumaTool API. The result reflects the resolver used by that request, not a global propagation test.

How to use

  1. Step 1. Enter or choose a domain and record type.
  2. Step 2. Select the options required for this task.
  3. Step 3. Run Lookup DNS and review validation messages.
  4. Step 4. Copy or download the DNS records after checking the result.

Real-world examples

Verify a web host or CDN change

Verify a web host or CDN change.

Check mail routing and SPF records

Check mail routing and SPF records.

Collect resolver evidence for a support ticket

Collect resolver evidence for a support ticket.

FAQ

What input does DNS Lookup Tool Online accept?

example.com — A www.example.com — CNAME example.com — MX / TXT

How is the result produced?

Enter a domain or hostname, not a complete URL; protocol, path and query are removed during normalization. TTL controls caching. Different resolvers can temporarily return different answers.

Is my input uploaded?

This lookup sends only the entered domain and selected record type to the LumaTool API. The result reflects the resolver used by that request, not a global propagation test.

Which options should I choose?

Choose only the options needed to turn a domain and record type into the DNS records; the defaults preserve the least surprising behavior.

Can I use the result immediately?

Review validation messages and compare a representative sample before using the result in production.

Does it work on mobile?

Yes. The workspace and result controls adapt to desktop and mobile browsers.

What should I do when input is rejected?

Looking up the root domain when the issue affects www. Calling one resolver result a global propagation test.

Is processing private?

This lookup sends only the entered domain and selected record type to the LumaTool API. The result reflects the resolver used by that request, not a global propagation test.

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