WHOIS Lookup

WHOIS Lookup - Check Domain Registration Information

A powerful WHOIS lookup tool that retrieves domain registration information using the modern RDAP protocol. Check registrar details, expiry dates, nameservers, and domain status instantly. Free, accurate, and no registration required.

What is WHOIS Lookup?

WHOIS is a protocol for querying databases that store registration information about domain names. It provides:

- Domain registrar and registry information
- Registration, update, and expiry dates
- Nameserver configuration
- Domain status flags (transfer lock, delete prohibition, etc.)
- DNSSEC signing status

This tool uses RDAP (Registration Data Access Protocol), the modern replacement for traditional WHOIS, which provides structured JSON responses for better accuracy.

How do I use this tool?

Using the WHOIS Lookup tool:

1. Enter a domain name (e.g., example.com)
2. Click 'Lookup' or press Enter
3. View the domain registration information

The tool will display:
- Domain and registry information
- Registrar details and IANA ID
- Important dates (created, updated, expiry)
- Nameserver list
- Domain status and DNSSEC info

You can also view the raw RDAP response data by clicking 'Show Raw Data'.

What is RDAP?

RDAP (Registration Data Access Protocol) is the modern replacement for the legacy WHOIS protocol. Benefits include:

- Structured JSON responses (easier to parse)
- Standardized across all registries
- Better internationalization support (Unicode)
- Secure access via HTTPS
- More consistent data format
- Support for authentication and access control

RDAP is now the recommended protocol by ICANN for domain registration data queries.

What do domain status codes mean?

Common domain status codes:

Protection statuses:
- clientTransferProhibited: Transfer locked by registrar
- clientDeleteProhibited: Delete locked by registrar
- serverTransferProhibited: Transfer locked by registry
- serverDeleteProhibited: Delete locked by registry

Pending statuses:
- pendingCreate: Domain being created
- pendingDelete: Domain being deleted
- pendingTransfer: Transfer in progress
- redemptionPeriod: Domain in grace period after expiry

These statuses help protect domains from unauthorized changes.

Why is some information hidden?

Due to privacy regulations like GDPR, registrars now redact personal information:

Commonly hidden data:
- Registrant name and organization
- Contact email addresses
- Phone numbers
- Physical addresses

Still available:
- Domain name and status
- Registrar information
- Registration and expiry dates
- Nameservers
- DNSSEC status

To contact a domain owner, use the registrar's contact form or WHOIS privacy service.

Which TLDs are supported?

This tool supports most major TLDs via RDAP:

Generic TLDs: .com, .net, .org, .info, .biz, .dev, .app, .xyz, .online, .site, .shop, .tech, .blog, .cloud, and more

Country code TLDs: .io, .co, .me, .tv, .ai, .us, .uk, .de, .fr, .nl, .eu, .au, .ca, .br, .jp, .kr, .in, and more

If a specific TLD is not directly supported, the tool falls back to the RDAP.org bootstrap service which covers most registered domains.

Key Features

• Modern RDAP protocol for accurate data
• Domain registration and expiry dates
• Registrar and registry information
• IANA registrar ID lookup
• Nameserver configuration
• Domain status flags
• DNSSEC signing status
• Support for 50+ TLDs
• Raw JSON data view
• No API key required
• Free and unlimited lookups
• Dark mode support
• Mobile-friendly design