Registry Data Access Protocol Help

For more information on Verisign’s Registration Data Access Protocol (RDAP) service.

Verisign’s Registration Data Access Protocol (RDAP) service allows users to look up records in the registry database for all registered .com, .net, .name, .cc and .tv domain names. It also supports Internationalized Domain Names (IDNs) such as .コム, .닷컴, .닷넷 and .كوم.


Verisign RDAP Server


The Verisign RDAP Server supports the RDAP RFCs (7480, 7481, 7482, 7483, 7484), following the Internet Corporation for Assigned Names and Numbers (ICANN) gTLD RDAP Profile that consists of the two documents:

  1. RDAP Technical Implementation Guide (TIG)
  2. RDAP Response Profile (RP)

The Verisign RDAP Server supports the following Bootstrap Service URLs, registered in the Bootstrap Service Registry for Domain Name Space:

The Bootstrap Service URL is referred to as $BOOTSTRAP in the queries below, with the trailing ‘/’ removed from the Query Syntax definitions.

The Verisign RDAP Server supports the following RDAP queries, as defined in RFC 7482:


Help Lookups

Provides a link to this page. The query is defined in the section 3.1.6 of RFC 7482.

Query Syntax:

$BOOTSTRAP/help

Example Query:

https://rdap.verisign.com/com/v1/help


Domain Lookups

Lookup for domain information. The lookup is defined in the section 3.1.3 of RFC 7482.

Query Syntax:

$BOOTSTRAP/domain/<domain name>

Example Query:

https://rdap.verisign.com/com/v1/domain/example.com


Nameserver Lookups

Lookup for nameserver information. The lookup is defined in the section 3.1.4 of RFC 7482.

Query Syntax:

$BOOTSTRAP/nameserver/<nameserver name>

Example Query:

https://rdap.verisign.com/com/v1/nameserver/ns1.example.com



Nameserver Search by IP


Searches for nameserver information by nameserver IP address. The search is defined in the section 3.2.2 of RFC 7482.

Example Query:

$BOOTSTRAP/nameservers?ip=<ip address>


Registrar Lookups

Lookup for registrar information using a handle of either the registrar name or the registrar Internet Assigned Numbers Authority (IANA) identifier, as defined in the Registrar IDs IANA Registry. The entity lookup is defined in the section 3.1.5 of RFC 7482.

Example Query:

$BOOTSTRAP/entity/<handle>
<handle> = registrar name or registrar IANA identifier

Example Query:

Lookup by registrar name:
https://rdap.verisign.com/com/v1/entity/Example,%20Inc.

Lookup by registrar IANA identifier:
https://rdap.verisign.com/com/v1/entity/12345


Contact Lookups

Lookup for contact information using a handle of the contact Registry Object Identifier (ROID), as defined in the EPP Contact RFC 5733. The entity lookup is defined in the section 3.1.5 of RFC 7482.

Query Syntax:

$BOOTSTRAP/entity/<handle>
<handle> = contact ROID

Example Query:

https://tld-rdap.verisign.com/name/v1/entity/123456789_CONTACT_NAME-VRSN

Rev.20190730DA