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DNS Tool • Free Online • No Signup

DNS Lookup Tool Online

Check DNS records such as A, AAAA, MX, TXT, CNAME, and NS directly in your browser. This tool is useful for DNS troubleshooting, email record checks, hosting verification, propagation review, and confirming that domain configuration matches your expected setup.

Last updated: March 2026
Ready to look up DNS records.
Fast • Free • Browser-Based

Inspect DNS records for domains, hosting, and email setup

DNS records control how a domain connects to websites, mail servers, verification systems, and other services. A quick DNS lookup helps you understand where a domain points, whether records are present, and whether the returned values match the configuration you intended. This makes DNS checks useful for developers, sysadmins, IT teams, hosting users, and domain owners.

✅ A records
✅ AAAA records
✅ MX and TXT
✅ DNS over HTTPS

This tool uses an external DNS API

This page performs lookups using a DNS over HTTPS endpoint. That means your requested domain and record type are sent to an external DNS resolver service in order to return results in the browser. This is different from tools that perform everything locally.

For more detail about site usage and privacy, read our Privacy Policy.

How to use this DNS Lookup Tool

Enter the domain name you want to inspect, choose a DNS record type, and click Lookup DNS. The tool will query a DNS over HTTPS endpoint and display the returned response so you can review the record values and related metadata.

  1. Enter a domain such as example.com.
  2. Select the DNS record type you want to inspect.
  3. Click Lookup DNS.
  4. Review the returned data in the result area.

Common record types

  • A: maps a domain to an IPv4 address
  • AAAA: maps a domain to an IPv6 address
  • CNAME: points one hostname to another
  • MX: defines mail routing servers
  • TXT: stores verification and text records
  • NS: shows authoritative name servers

Typical use cases

  • Check website DNS setup
  • Verify email-related records
  • Inspect domain pointing changes
  • Review DNS propagation results
  • Troubleshoot hosting configuration

What is a DNS lookup tool?

A DNS lookup tool checks the Domain Name System records for a domain and returns the values associated with a selected record type. These records tell browsers, mail services, and network infrastructure how to route requests and identify services connected to the domain.

DNS lookup tools are commonly used to verify configuration, inspect domain connections, troubleshoot website or email issues, and confirm whether DNS changes have taken effect.

Why check DNS records?

DNS records are at the center of how domains function. When something is misconfigured, websites may not load correctly, email may fail, or verification systems may not work. Looking up the records directly helps confirm what the domain is currently returning.

  • Website setup: verify where the domain points.
  • Email troubleshooting: inspect MX and TXT records.
  • Hosting checks: confirm IP or hostname targets.
  • Propagation review: compare expected and actual DNS results.

What can each DNS record tell you?

Different DNS record types serve different purposes. Looking up the right one depends on the problem you are trying to solve.

  • A / AAAA: where the website or hostname resolves.
  • CNAME: whether a hostname aliases another hostname.
  • MX: which servers handle inbound email.
  • TXT: SPF, verification tokens, and other text-based settings.
  • NS: which name servers are authoritative for the domain.

What is DNS over HTTPS?

DNS over HTTPS, often abbreviated as DoH, is a way to perform DNS queries over HTTPS instead of using traditional DNS transport alone. In browser-based tools, DoH makes it possible to query a resolver endpoint and receive DNS answers in a web-friendly format.

This tool uses a DNS over HTTPS request so that lookup results can be retrieved directly in the browser.

Why might a DNS lookup fail?

A lookup can fail for several reasons. The domain may be invalid, the queried record may not exist, the external resolver may not respond, or the network or browser may block the request. In some cases the DNS response may also be empty even though the domain itself exists, because that specific record type is not configured.

Frequently Asked Questions

What record types does this DNS lookup tool support?

This version supports A, AAAA, CNAME, MX, TXT, and NS record lookups.

Can I use this tool to check email DNS records?

Yes. MX and TXT lookups can help you inspect email-related DNS configuration.

Is this DNS lookup tool free to use?

Yes. This tool is free to use online.

Why might a lookup fail?

A lookup may fail because of network restrictions, browser blocking, invalid domains, unavailable DNS responses, or issues with the DNS over HTTPS endpoint.

Who can use this tool?

Developers, system administrators, hosting users, IT teams, marketers, and website owners can all use this tool.

Does this tool work entirely locally?

No. This page sends the lookup request to an external DNS over HTTPS service so it can return the DNS response in the browser.