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WHOIS Lookup
Look up registration info for any domain or IP address — owner, registrar, dates, DNS servers, geolocation.
Domains
IP Addresses
Geolocation
DNS & Registrar
e.g.
google.com
github.com
8.8.8.8
1.1.1.1
wikipedia.org
Querying WHOIS server…
What is WHOIS used for?
Check availability
Find out if a domain is available or already registered before buying.
Identify the owner
Find the registrar and contact details of the domain holder.
Detect fraud
Verify a site's age and authenticity before trusting it.
Monitor expiry
Check when a domain expires to plan renewal or acquisition.
What is WHOIS used for?
Check availability
Find out if a domain is available or already registered before buying. Essential before any domain name purchase.
Identify the owner
Find the registrar and contact details of the domain holder for legal or commercial purposes.
Detect fraud
Verify a site's age and authenticity before trusting it. A domain registered yesterday is a red flag.
Monitor expiry
Check when a domain expires to plan renewal or acquisition at expiry.
FAQ
WHOIS data comes directly from registrars and domain registries. However, since GDPR (2018), much personal information is masked or replaced with proxy data. Dates and DNS servers generally remain reliable.
Domain WHOIS queries domain name registries (ICANN) for owner and registration info. IP WHOIS queries Regional Internet Registries (ARIN, RIPE, APNIC…) for network block and operator information.
GDPR forced European registrars to mask personal data since 2018. Additionally, many owners use a WHOIS privacy service (proxy) that replaces their contact details with proxy service details.