A DNS lookup answers one question: what does this name publish for this record type? Start with A or AAAA for addresses, CNAME to follow an alias, MX for mail routing, TXT for SPF and verification strings, and NS for the authoritative name servers. Read the TTL with the answer, because it tells you how long resolvers may cache it.
01Step by step
Enter the bare hostname (no scheme, path or port) and choose the record type.
Read the returned records and their TTLs; MX records also carry a preference.
If you changed a record, run a propagation check across resolvers before assuming the change failed.
For a domain owner, look up WHOIS/RDAP registration data; for an address, look up its ASN and announced prefixes.
Re-check after the TTL expires if a resolver still shows the previous answer.
The Gampangin lookup tools are server-backed because a browser cannot open a raw DNS, WHOIS or BGP connection. Only the validated target is sent, the response is never stored or logged, and private or internal targets are refused.
Frequently asked questions
When should I use a propagation check instead of a lookup?
Use a single lookup to read the current answer; use the propagation check when you have changed a record and want to know whether resolvers around the network agree yet.
Can I look up a private IP?
No. Private, loopback, link-local, reserved and internal targets are refused before any lookup so the service cannot be used to probe an internal network.
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