Registration Data Access Protocol (RDAP) 2023-11-09 2025-06-04 Specification Required Scott Hollenbeck, Andrew Newton, Mario Loffredo, Pawel Kowalik, Jasdip Singh domainNameControl Tasks within the scope of this purpose include, for a registrant's own domain name, creating the domain name, updating information about the domain name, transferring the domain name, renewing the domain name, deleting the domain name, maintaining a domain name portfolio, and detecting fraudulent use of the registrant's own contact information. personalDataProtection Tasks within the scope of this purpose include identifying the accredited privacy or proxy provider associated with a domain name, reporting abuse, requesting reveal, or otherwise contacting the provider. technicalIssueResolution Tasks within the scope of this purpose include (but are not limited to) working to resolve technical issues, including email delivery issues, DNS resolution failures, and website functionality issues. domainNameCertification Tasks within the scope of this purpose include a Certification Authority (CA) issuing an X.509 certificate to a subject identified by a domain name. individualInternetUse Tasks within the scope of this purpose include identifying the organization using a domain name to instill consumer trust or contacting that organization to raise a customer complaint to them or file a complaint about them. businessDomainNamePurchaseOrSale Tasks within the scope of this purpose include making purchase queries about a domain name, acquiring a domain name from a registrant, and enabling due diligence research. academicPublicInterestDNSResearch Tasks within the scope of this purpose include academic public interest research studies about domain names published in the registration data service, including public information about the registrant and designated contacts, the domain name's history and status, and domain names registered by a given registrant (reverse query). legalActions Tasks within the scope of this purpose include investigating possible fraudulent use of a registrant's name or address by other domain names, investigating possible trademark infringement, contacting a registrant's or licensee's legal representative prior to taking legal action, and then taking a legal action if the concern is not satisfactorily addressed. regulatoryAndContractEnforcement Tasks within the scope of this purpose include investigating the tax authority of businesses with online presences, investigating Uniform Domain-Name Dispute-Resolution Policy (UDRP), investigating contractual compliance, and registering data escrow audits. criminalInvestigationAndDNSAbuseMitigation Tasks within the scope of this purpose include reporting abuse to someone who can investigate and address that abuse or contacting entities associated with a domain name during an offline criminal investigation. dnsTransparency Tasks within the scope of this purpose involve querying the registration data made public by registrants to satisfy a wide variety of use cases around informing the public.