Quick link: Want to see what these look like? Check out the MyIPNow WHOIS Lookup.

Domain WHOIS - Registration Fields

Here's the stuff related to domain registration, who owns it, and what happens over its lifetime.

Field	Description	Source	Notes
Domain Name	The registered domain name	WHOIS	Your main identifier
Registrar	The company handling the registration	ICANN	This changes if you transfer it
Registrant	The actual owner of the domain	WHOIS	Usually hidden, honestly
Creation Date	When the domain was first registered	WHOIS	Tells you how old the domain is
Expiration Date	When the domain runs out	WHOIS	You've gotta renew it before this
Updated Date	Last time the WHOIS record changed	WHOIS	Doesn't mean the website changed
Status	Current status codes for the domain	ICANN	Things like clientHold, etc

Domain WHOIS - DNS & Security

DNS setup and the security-related stuff you'll find in WHOIS records.

Field	Description	Source
Name Servers	The DNS servers handling the domain	DNS/WHOIS
DNSSEC	Whether DNSSEC is turned on or off	DNS
DS Record	The DNSSEC delegation signer record	DNSSEC

These fields tell you about IP address blocks, how traffic routes, and who actually owns them.

Field	Description	Source	Notes
IP Range	The block of IPs that were allocated	RIR	Shows in CIDR notation
ASN	Autonomous System Number	RIR/BGP	Honestly, this is your most reliable ownership indicator
Organization	The organization that owns the IPs	RIR	Better than just going by ISP
NetName	What the registry calls the network	RIR	It's an internal label
Country	Which country the IPs were assigned to	RIR	Not necessarily where the server actually sits

Where to reach out if there are technical problems or you need to report abuse.

Field	Description	Source
Abuse Contact	Email for reporting abuse	RIR/ICANN
Registrar Abuse Email	The domain registrar's abuse contact	ICANN
Tech Contact	Who to contact for tech issues	WHOIS
Admin Contact	Administrative contact for the domain	WHOIS