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Explicit public-web check

DNS Lookup

Query public A, AAAA, CNAME, MX, TXT, or NS records with Google Public DNS over HTTPS.

Free to use Nothing is requested while you type. When you run the check, the entered hostname is sent to Google Public DNS, and to Cloudflare DNS for comparison tools, only after you click Check; Lucaden does not store the lookup.

Loading tool workspace…

How it works

Complete the job in three clear steps

  1. Enter a public URL or hostname and review the named external service.
  2. Click the check button to make the explicit request.
  3. Review the returned evidence and confirm important findings with the destination or another diagnostic source.

Important

Check the result before relying on it

Scan-test generated codes before printing or distribution. A generated barcode does not register identifier ownership, and decoded external links should be checked before opening.

Practical details

What this Lucaden tool does

Query public A, AAAA, CNAME, MX, TXT, or NS records with Google Public DNS over HTTPS.

The workspace separates returned evidence from interpretation and explains important browser or provider limitations.

Included capabilities

  • Six DNS record types
  • DNSSEC AD signal
  • TTL display
  • Raw JSON export

Useful for

  • Check a new record
  • Inspect mail routing
  • Review nameservers
  • Debug a hostname

Questions

About this tool

Does the check run while I type?

No. A public-web request starts only when you click the check button.

Is this a complete audit?

No. Results are a point-in-time diagnostic from the named browser or service and should be confirmed before making production decisions.

Keep going

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Open-source foundations

Built transparently

Lucaden documents its standards sources, architectural references, and permissive runtime dependencies while keeping this workspace consistent with the Lucaden interface.

Google Public DNS JSON APIPublic DNS-over-HTTPS service; called only after explicit action sourceCloudflare 1.1.1.1 DNS-over-HTTPSPublic DNS-over-HTTPS service; called only after explicit action sourceThird-party noticesLicenses and attribution