Guide
This free WHOIS lookup shows who a domain is registered with and how healthy the registration is: the registrar, registration and expiration dates, lock statuses explained in plain language, nameservers, and DNSSEC. Data comes live from the registry's public RDAP service — the structured successor to WHOIS — queried straight from your browser.
How to look up domain ownership
- Paste a domain or URL (e.g.
example.com— the domain is extracted automatically). - Click "Look up". The registry's RDAP record is fetched and parsed.
- Read the summary: registrar, dates with a days-until-expiry badge, and each domain status with what it actually means.
What the fields mean
| Field | What it tells you |
|---|---|
| Registrar | The company the domain is registered through (GoDaddy, Cloudflare, Onamae.com…) |
| Registered on | When the domain was first created — a proxy for how established the site is |
| Expires on | When the registration lapses; an expired domain can be lost or hijacked |
| Domain status | Lock and lifecycle flags — clientTransferProhibited is a healthy anti-hijack lock, serverHold means suspended |
| Nameservers | Where the DNS zone is delegated |
| DNSSEC | Whether the delegation is cryptographically signed |
Example
Looking up example.com shows it registered in 1995 through its registrar, expiring next year with a green "in 300+ days" badge, transfer/delete locks on (normal), and nameservers at a.iana-servers.net — a stable, healthy registration. A domain showing redemptionPeriod instead has expired and is days away from being released.
Why owner names are redacted
Since GDPR (2018), registries redact personal names, emails, and addresses from public WHOIS/RDAP. Ownership questions are answered indirectly: the registrar, registration age, statuses, and nameservers tell you who operates the domain and how seriously.
Related lookups
- Where does the domain point right now? → DNS lookup
- Is its SSL certificate valid? → SSL certificate checker
Limitations
- ccTLDs that have not adopted RDAP (including
.jp) cannot be queried from a browser; use the registry's own WHOIS (JPRS WHOIS for.jp). - Contact details are redacted by registries under privacy rules — no tool can show them from public data.
