Domain WHOIS Lookup - Check Domain Ownership, Registrar & Expiration Dates

Perform instant WHOIS and modern ICANN RDAP lookups for any domain name. Check domain registration status, sponsoring registrar, creation and expiry dates, authoritative nameservers, DNSSEC security, and live DNS records.

What is a Domain WHOIS Lookup?

WHOIS (pronounced "who is") is a globally standardized protocol used for querying databases that store the registered users or assignees of an Internet domain name. Every time a domain name is registered through an ICANN-accredited registrar (such as GoDaddy, Namecheap, Cloudflare, or Google Domains), record details are logged in authoritative registry databases.

Modern domain queries utilize RDAP (Registration Data Access Protocol), the next-generation, JSON-powered successor to traditional WHOIS that provides structured, cryptographically verifiable registration data.

Why Use the Domain WHOIS Lookup Tool?

Whether you are a webmaster, cybersecurity analyst, domain investor, or business owner, our WHOIS lookup provides mission-critical insights:

• Domain Availability & Acquisition: Discover if a desired domain is currently registered or free to purchase.
• Expiration Date & Renewal Tracking: Track exact expiry dates with automated day countdowns to prevent losing your domain or catch expiring domains before they drop.
• Domain Age Calculation: Determine domain trust and authority for SEO auditing by viewing the exact creation date and calculated domain age.
• Registrar Identification: Find where a domain is registered and get official abuse contact emails and phone numbers for reporting trademark infringement, phishing, or malware.
• Authoritative Name Server (DNS) Inspection: Verify active nameservers and confirm proper DNS routing.
• DNSSEC Security Validation: Verify whether Domain Name System Security Extensions (DNSSEC) are cryptographically signed to guard against DNS spoofing.
• Live DNS Records Inspector: Instantly fetch live IPv4 (A), IPv6 (AAAA), Mail Exchanger (MX), and verification (TXT) records.

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Key Information Provided by Domain WHOIS

1. Registration Dates & Lifecycle

• Creation / Registered Date: The exact date and timestamp when the domain was first registered.
• Registry Expiry Date: The deadline when the current domain registration term ends.
• Updated Date: The last time changes were made to the domain's registrar or nameservers.
• Domain Age: Total operational age (years, months, and days) of the domain name.
• Days Remaining: A visual countdown showing how many days remain before the domain enters the renewal grace period.

2. Registrar Details

• Sponsoring Registrar: The company through which the domain owner registered the name (e.g. Cloudflare, Namecheap, GoDaddy, MarkMonitor).
• IANA Registrar ID: The unique ICANN-assigned identifier for the registrar.
• Registrar URL & Abuse Contacts: Direct links and verified contact methods for reporting security or legal concerns.

3. Name Servers & DNS Records

• Authoritative Nameservers: The primary and secondary DNS hosts responsible for routing traffic.
• DNSSEC Status: Shows whether DNSSEC is signed, protecting users against cache poisoning.
• Resolved IP Addresses: Live IPv4 (A) and IPv6 (AAAA) root server addresses.
• Mail Exchanger (MX) Records: Destination mail servers configured to handle emails for the domain.
• TXT Records: Domain verification tokens (SPF, DKIM, Google/Microsoft verification tags).

4. EPP Domain Status Codes

Our tool automatically decodes all ICANN EPP status codes into plain English:

• clientTransferProhibited / serverTransferProhibited: Domain transfer lock is enabled to protect against domain hijacking.
• clientDeleteProhibited / serverDeleteProhibited: Deletion lock is active to prevent accidental release.
• clientUpdateProhibited / serverUpdateProhibited: Modification lock prevents unauthorized nameserver or contact changes.
• clientHold / serverHold: The domain has been temporarily suspended from the DNS.
• redemptionPeriod: The domain has expired and is in the final grace period before permanent public release.

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How to Use the Domain WHOIS Tool

1. Enter Domain Name: Type in any domain (e.g., google.com, github.com, apple.com). Protocol prefixes like https:// are automatically stripped.
2. Click "Lookup WHOIS": Our backend queries authoritative RDAP endpoints, fallback WHOIS servers, and live DNS resolvers.
3. Explore Interactive Tabs:
   • Overview: View high-level cards with registrar details, registration timeline, and EPP status codes.
   • Live DNS Records: Examine live IP addresses, MX mail servers, and TXT verification tags.
   • Raw Output: Search and copy the raw registry output or download the full report in JSON/Text format.

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Frequently Asked Questions (FAQ)

What is the difference between WHOIS and RDAP?

WHOIS is the legacy text-based protocol operating on port 43, while RDAP (Registration Data Access Protocol) is the modern RESTful JSON protocol standardized by ICANN and the IETF. RDAP provides standardized formatting, internationalized domain name support, and robust privacy compliance.

Why is the registrant contact information "Redacted for Privacy"?

Due to international privacy regulations such as the European Union's General Data Protection Regulation (GDPR) and registrar WHOIS privacy protection services (e.g. WhoisGuard, Domains By Proxy), personal names, physical addresses, and personal email addresses of domain owners are shielded from public databases to prevent spam, stalking, and identity theft.

How do I report a malicious domain (phishing/malware)?

In the Registrar Information section of the lookup report, copy the Abuse Contact Email or phone number and submit a report with evidence (URLs, screenshots, headers) directly to the sponsoring registrar.

What happens when a domain expires?

When a domain reaches its expiration date, it typically undergoes a multi-stage lifecycle:

1. Auto-Renew / Grace Period (0 to 45 days): The registrar holds the domain, and the owner can renew at standard rates.
2. Redemption Period (30 days): The domain stops working in DNS, and restoration requires an additional penalty fee.
3. Pending Delete (5 days): The domain cannot be recovered and will be permanently dropped and released for public registration.

Can I look up country-code top-level domains (ccTLDs)?

Yes! Our hybrid lookup engine supports global generic TLDs (.com, .net, .org, .io, .ai, .dev, .app) as well as international ccTLDs (.in, .co.uk, .de, .ca, .au, .jp, etc.).

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