DNS Lookup — free online tool

Inspect A, AAAA, MX, NS, and TXT records for a hostname through our own DNS API—no terminal dig required for one-off checks.

When to use DNS Lookup

Inspect A/AAAA/MX/TXT records when email or a subdomain fails to resolve.

Saves opening a terminal or a separate DNS client for one-off checks.

What DNS Lookup does not do

Lookups via our API. Not a zone-file editor, DNSSEC auditor, or WHOIS replacement.

How to use DNS Lookup

Enter a hostname on DNS Lookup (example.com without path).
Choose record type A, AAAA, MX, NS, or TXT as offered.
Run lookup via Cloudflare or Google DNS JSON in the browser.
Copy answers into ticket notes or compare MX priorities for mail debugging.

Practical tips

Check A/AAAA for hosting, MX for email, and TXT for SPF/DKIM when debugging delivery.
Recent DNS changes may be cached—results can lag the authoritative record by minutes to hours.
Compare against a second resolver if a record looks stale or wrong.

Example

Query A and MX for your domain after changing nameservers.

Related tools on Webtoolshop

WHOIS / Domain Hints — Registrar/NS hints plus ICANN after DNS looks wrong.
HTTP Status Checker — Confirm the site still responds after DNS changes.

Limitations

Record types offered on the card (A/AAAA/MX/NS/TXT, etc.). DNSSEC chain validation is not a full auditor.

Privacy & data

Requests go from your browser to Webtoolshop’s own API (or self-hosted datasets). We do not sell that input. Still avoid secrets and internal-only hostnames.

Frequently asked questions about DNS Lookup

Does DNS Lookup use Google or Cloudflare from my browser?

No. Your browser talks only to Webtoolshop’s /api/dns-lookup. The server resolves records and returns JSON.

Who sees what I type into the DNS Lookup?

Requests go from your browser to Webtoolshop’s own API (or self-hosted datasets). We do not sell that input. Still avoid secrets and internal-only hostnames.