ToolPatch

One page. One job. Done.

← Back to all tools
Network

DNS Lookup

Query DNS records by type for a host.

Last validated: 2026-02-14

DNS Lookup queries live DNS records for a hostname and selected record type. DNS resolution is a distributed lookup process in which recursive resolvers ask authoritative nameservers for records such as A, AAAA, CNAME, MX, TXT, NS, or CAA. Different record types answer different operational questions: address records route web traffic, MX records route mail, TXT records often prove ownership or define email policy, and NS records identify the authoritative servers for a zone. Results can differ by resolver because of caching, TTL, split-horizon DNS, or recent changes. This tool is useful for troubleshooting and documentation, but authoritative nameserver checks are best when confirming production truth.

Permalink

Input Pattern

Enter values in the left panel, keep units explicit, run the calculation, then copy or share the result. Invalid fields are highlighted immediately.

DNS Lookup

Result

Enter a host like example.com, then choose the record type you want to query.

How to use this tool

  1. Enter Host, Record Type for the dns lookup, keeping units, dates, or text format consistent with the form labels.
  2. Choose the relevant mode, unit, or option values before running so the output answers the right version of the question.
  3. Click "Run the tool" and review Result for the primary output.
  4. Compare the output with device, provider, or DNS authority settings before applying a live network change.

Worked Example

Auto-generated from the tool's current default or entered inputs.

Example Inputs

  • Host:
  • Record type: A

Expected Outputs

Interpretation

Formula References

Assumptions

Explore more versions

Tailored guides for specific audiences, regions, and scenarios.

core

DNS Lookup

 geo

DNS Lookup for Germany

 geo

DNS Lookup for United Kingdom

 geo

DNS Lookup for United States

DNS and domain tools

Promote managed DNS, uptime checks, and domain monitoring products.

Sponsored