Tool overview
What is a DNS Lookup Tool?
A DNS lookup tool resolves hostname records (A, AAAA, MX, TXT, NS, and more) so you can verify DNS configuration from the browser.
Why use this DNS Lookup?
Check propagation, mail records, and SPF/DMARC-related TXT data with structured tables—without installing dig or trusting opaque web dig clones blindly.
Key Features
Multi-record lookup via DNS over HTTPS, structured tables, shareable hostname links, and clear TTL/health cues.
How to Use
Follow these steps to get accurate results from the tool interface above.
- Enter a hostname (example.com). The page URL updates to ?hostname=… so you can share the lookup.
- Leave record type on All (A, AAAA, CNAME, MX, TXT, NS, CAA, SOA, SRV) or pick one type; PTR is a separate option.
- Watch sections load as each type returns. Review typed tables—TTL shows a short label plus exact seconds (e.g. 5m | 300s)—and the DNS health strip (A, AAAA, NS, MX with provider, SPF, DMARC, CAA).
- Copy a row or Copy all; expand Raw JSON if needed; open WHOIS Lookup from Related tools for registrar context.
DNS Record Guide
Structured answers for addresses, mail, text auth (including DMARC at _dmarc), zone authority, SRV, optional PTR, plus a DNS health strip and shareable hostname URLs.
A / AAAA
IPv4 and IPv6 address records for direct connectivity.
CNAME
Alias record—chains to another hostname.
MX
Mail exchanger priority and target hosts, with known provider hints when possible.
TXT / SPF / DMARC
Text records including SPF at the apex and DMARC at _dmarc.<domain>.
SOA / NS / CAA
Zone authority, nameservers, and certificate issuance policy.
SRV
Service location records: priority, weight, port, and target host.
PTR
Reverse DNS (pointer) lookups—selectable separately; not included in All mode.
TTL display
Each TTL column shows a short duration label and exact seconds side by side (for example 5m and 300s).
DNS health
Presence checks for A, AAAA, NS, MX (with provider hint), SPF, DMARC, and CAA.
Frequently Asked Questions
Expandable answers for common debugging bottlenecks and data privacy questions.
Related tools
Explore other related utilities that complement this tool.
Official Documentation & References
Authoritative specifications and platform documentation for this utility.