WHOIS protocol

E766425

The WHOIS protocol is an older internet service used to query databases for information about domain name registrations and IP address allocations.

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All labels observed (1)

Label Occurrences
WHOIS protocol canonical 2

Statements (54)

Predicate Object
instanceOf application layer protocol
internet protocol
network protocol
characterEncoding ASCII
dataFormat plain text
definedInRFC RFC 3912 NERFINISHED
governedBy ICANN policies
hasDesignLimitation lack of built-in access control
lack of privacy controls
lack of standardized output format
no query language standard
no support for structured data
hasFullName WHOIS NERFINISHED
introduced early 1980s
isBeingReplacedBy Registration Data Access Protocol NERFINISHED
operatesAtLayer application layer
originallyUsedFor querying ARPANET user contact information
originatedAt DARPA NERFINISHED
previouslyDefinedInRFC RFC 812 NERFINISHED
RFC 954 NERFINISHED
primaryUse query IP address allocation data
query autonomous system number registration data
query domain name registration data
queryModel simple text query
relatedConcept IP address allocation
autonomous system number registration
domain name registration
relatedStandard ICANN WHOIS policy NERFINISHED
responseModel unstructured text response
standardizedBy Internet Engineering Task Force
surface form: IETF
status legacy protocol
stillInUse yes
successorProtocol RDAP NERFINISHED
supportsAuthentication no
supportsEncryption no
supportsInternationalization limited
usedBy Regional Internet Registries NERFINISHED
domain name registrars
domain name registries
law enforcement agencies
network operators
security researchers
usedFor abuse reporting
cybersecurity investigations
intellectual property investigations
law enforcement investigations
network troubleshooting
retrieving IP address allocation records
retrieving domain creation and expiration dates
retrieving domain name server information
retrieving domain registrant contact information
retrieving domain registrar information
usesPort 43
usesTransportProtocol TCP

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

RDAP replaces WHOIS protocol