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DNS Lookup Tool

dns-lookup

Look up records for any domain using a public DNS-over-HTTPS resolver. Fast, free, and no login required.

Enter a target and run the tool.

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About DNS Lookup

A DNS lookup queries the global Domain Name System to translate a human-readable domain name (like example.com) into the technical records that route traffic, deliver email, and verify ownership. Our free DNS lookup tool runs queries through a public DNS-over-HTTPS resolver directly from your browser, so results reflect the live, currently published records — not stale cached data. You can pull A and AAAA records to see which IPv4 and IPv6 addresses a hostname points to, MX records to inspect mail server routing and priorities, NS records to identify authoritative nameservers, TXT records to verify SPF, DKIM, and platform ownership tokens, CNAME records to trace aliases used for CDNs and SaaS hostnames, SOA records to read zone serials and refresh policy, and CAA records to confirm which certificate authorities are allowed to issue TLS certificates. The tool is free, requires no signup, works on any device, and is designed for developers, sysadmins, SEO specialists, and IT operators who need accurate DNS data quickly without installing dig, nslookup, or a desktop client.

Common use cases

  • Verify a recent DNS change has taken effect on the authoritative nameservers.
  • Diagnose why a domain is not resolving for users or breaking deliverability.
  • Inspect mail routing configuration before migrating an email provider.
  • Audit a domain for missing security records (SPF, DKIM, CAA).
  • Confirm CDN, SaaS, or load-balancer hostname targets behind a CNAME.

How to use this tool

  1. Enter the domain name you want to inspect (for example, example.com).
  2. Choose the DNS record type you want to query from the dropdown.
  3. Click "Run lookup" to run a live query against a public DNS-over-HTTPS resolver.
  4. Review the records returned, including TTL and the resolved value for each entry.

Frequently asked questions

Is this DNS lookup free to use?

Yes. Every query is free, requires no account, and has no usage limits for normal use.

Where do the DNS results come from?

We query a public DNS-over-HTTPS resolver in real time, so the results match what the live authoritative servers currently publish.

Why do I see different results than my computer?

Your local machine, router, or ISP often caches DNS responses for the TTL period. This tool bypasses local caches and asks a public resolver fresh.

Can I look up subdomains?

Yes. Enter the full hostname such as mail.example.com or api.example.com — any valid name with at least one dot is supported.

Which record types can I query?

A, AAAA, MX, TXT, CNAME, NS, SOA, and CAA. Use the type selector above the input field to switch between them.