WHOIS Lookup

Enter any domain to instantly retrieve its registration details, DNS records, SSL certificate, nameservers, and hosting information — directly from official sources.

What is WHOIS?

WHOIS is a protocol that allows you to look up information about a domain name's registration. It provides details about who registered the domain, when it was created, when it expires, and which nameservers it uses. This data is maintained by domain registries and registrars, and is publicly accessible for most domains. Our tool queries the official RDAP (Registration Data Access Protocol) servers — the modern replacement for the legacy WHOIS protocol — ensuring you always get accurate, up-to-date information directly from the authoritative source.

What data can you find?

  • Registration dates — when the domain was created, last updated, and when it expires
  • Registrar information — the company managing the domain registration and their abuse contact
  • Nameservers — the DNS servers resolving the domain, revealing the DNS provider
  • DNS records — A, AAAA, MX, TXT, NS, SOA, and CAA records for the domain
  • SSL/TLS certificate — the issuer, validity period, and Subject Alternative Names
  • Hosting provider — IP address, network name, ASN organization, and server country

Why use a WHOIS lookup?

WHOIS lookups are essential for investigating domain ownership, verifying a website's legitimacy, identifying the hosting provider behind a site for DMCA takedown requests, checking domain expiry dates, and auditing DNS configurations. Content creators use WHOIS data to find the registrar or hosting abuse contact when they need to report leaked content. Law enforcement and cybersecurity professionals use it to investigate phishing, fraud, and other online threats.

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