Consulta WHOISWHOIS
What is a WHOIS domain query?
A public network query protocol (RFC 3912) accessing registrar databases to surface ownership records, registration dates, and delegated nameservers.
DOMAIN REGISTRATION & RDAP
Lookup WHOIS & Domain Diagnostic
WHOIS, DNS records, mail security and SSL certificate for any domain, in a single lookup.
WHOIS & RDAP Protocol Architecture
Domain lifecycle, GDPR privacy, EPP status codes, and RESTful modernization.
From Legacy WHOIS to Modern RDAP
Legacy WHOIS relied on unformatted text over TCP port 43. RDAP standardizes structured JSON payloads over HTTPS with full i18n support.
Domain Lifecycle & Expiration Phases
After expiry, domains transition from Grace Period (standard price) to Redemption Period (30 days with penalty fee) and 5-day Pending Delete.
GDPR Privacy & Contact Redaction
Since GDPR in 2018, ICANN mandates masking personal registrant details as 'REDACTED FOR PRIVACY' to prevent harvesting and spam.
EPP Status Codes & Domain Locks
EPP status codes like `clientTransferProhibited` safeguard against unauthorized transfers. The `ok` status indicates nominal operational health.
Domain, Lock & Transfer Troubleshooting
Step-by-step fixes for suspended domains, transfer roadblocks, and redemption fees.
Issue 1
Domain in 'serverHold' or 'clientHold' Status
⚡ Quick Fix:Check the registrant email inbox for an unconfirmed ICANN contact verification link or abuse notice.
🔧 Technical Fix:Contact the registrar support to trigger a new ICANN verification email and reactivate authoritative zone delegation.
Issue 2
Domain Transfer Failed: 'Domain is Locked' / Bad AuthCode
⚡ Quick Fix:Unlock the domain in your registrar control panel and request a fresh EPP/Auth-Info code.
🔧 Technical Fix:ICANN imposes a mandatory 60-day transfer lock following initial registration or registrant contact modifications.
Issue 3
Domain in Redemption Period / High Restore Fee
⚡ Quick Fix:Pay the registrar restore penalty fee immediately before the 30-day redemption window lapses into public auction.
🔧 Technical Fix:Enable Auto-Renewal with secondary backup payment methods and calendar alerts 45 days prior to expiration.
Issue 4
Nameservers in WHOIS Mismatched with DNS Host
⚡ Quick Fix:Update authoritative nameservers at the DOMAIN REGISTRAR rather than inside a local cPanel.
🔧 Technical Fix:Disable DS records (DNSSEC) at the registrar prior to nameserver migration to prevent validation failure.
Did You Know? WHOIS & Domain Trivia
Historical trivia about ARPANET 1982 WHOIS, multimillion sales, and Google's $12 slip.
📜
WHOIS Originated as a People Directory in 1982
Published in RFC 812 by Ken Harrenstien, WHOIS was created to look up real names, physical office rooms, and phone numbers of ARPANET engineers.
💰
cars.com & voice.com: Multi-Million Domain Records
`cars.com` was valued at $872 million USD in corporate filings. In single direct cash sales, `voice.com` sold for $30 million USD in 2019.
⚡
When an Ex-Googler Bought google.com for $12 in 2015
Sanmay Ved noticed `google.com` listed as available on Google Domains for $12 USD. He owned it for one minute before Google revoked the purchase and awarded a $12,000 bug bounty.
🔤
Extinction of 2- and 3-Letter .com Domains in 1997
All 676 two-letter .com domains and 17,576 three-letter .com combinations were completely sold out by 1997, making them high-value digital real estate.
Domain Registration & ICANN Governance Glossary
Learn the fundamental concepts, protocols, and technical terminology of this tool.
Registrador Acreditado (Registrar)ICANN
What is an ICANN-accredited registrar?
A certified commercial registry authority authorized by ICANN to provision and administer domain names across global Top-Level Domains (TLDs).
Código de Estado EPP (Domain Status)Seguridad
What are EPP domain status codes?
Standardized Extensible Provisioning Protocol status codes indicating whether a domain is transfer-locked, resolving actively, or suspended.
Privacidad de Dominio (WHOIS Privacy)Privacidad
How does WHOIS privacy protection work?
A proxy service masking private registrant identity data (name, phone, physical address) with generic privacy agent details to prevent spam.