DomainTools Lookups API
Endpoints for retrieving detailed information about domains and IPs, and for finding connections between domains and infrastructure.
Endpoints for retrieving detailed information about domains and IPs, and for finding connections between domains and infrastructure.
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openapi: 3.2.0
info:
title: DomainTools and Monitors Lookups API
version: 1.0.0
description: 'The OpenAPI spec for DomainTools Lookup, Reversing, and Monitoring endpoints.
'
contact:
name: DomainTools Support
url: https://www.domaintools.com/support
email: enterprisesupport@domaintools.com
license:
name: MIT
url: https://opensource.org/licenses/MIT
termsOfService: https://www.domaintools.com/company/terms-of-service/
servers:
- url: https://api.domaintools.com
description: DomainTools APIs
security:
- header_auth: []
- open_key_auth: []
- hmac_auth: []
tags:
- name: Lookups
description: 'Endpoints for retrieving detailed information about domains and IPs, and for finding connections between domains and infrastructure.
'
paths:
/v1/{domain}/:
get:
operationId: getDomainProfile
summary: Domain Profile
description: 'Basic registrant, server, and registration data for a domain name, plus preview data for other products.
'
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainPath'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/DomainProfileSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
/v1/{domain}/hosting-history/:
get:
operationId: getHostingHistory
summary: Hosting History
description: 'Provides the registrar, IP and name server history for a domain name.
'
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainPath'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/HostingHistorySuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/hosting-history/
/v1/{domain}/rdap/parsed/:
get:
operationId: getParsedDomainRdap
summary: Parsed Domain RDAP
description: Returns the most recent Domain-RDAP registration record.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainPath'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
responses:
'200':
$ref: '#/components/responses/ParsedDomainRdapSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/parsed-rdap/
/v1/{query}/whois/:
get:
operationId: getWhoisLookup
summary: WHOIS Lookup
description: WHOIS records for domain names and IP addresses.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainOrIpPath'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/WhoisLookupSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/whois-lookup/
/v1/{domain}/whois/history/:
get:
operationId: getWhoisHistory
summary: WHOIS History
description: Retrieve historical WHOIS records of a given domain name.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainPath'
- $ref: '#/components/parameters/whoisHistorySort'
- $ref: '#/components/parameters/resultsLimit'
- $ref: '#/components/parameters/resultsOffset'
- $ref: '#/components/parameters/whoisHistoryMode'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/WhoisHistorySuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/whois-history/
/v1/{query}/whois/parsed/:
get:
operationId: getParsedWhois
summary: Parsed WHOIS
description: Parsed results for WHOIS records for domain names and IP addresses.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainOrIpPath'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/ParsedWhoisSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/parsed-whois/
/v1/reputation/:
get:
operationId: getDomainReputation
summary: Domain Reputation
description: This functionality is superseded by the Domain Risk Score `/risk/` endpoint, which offers a more complete and robust evaluation and should be used for all new development.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainQueryRequired'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/DomainReputationSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/domain-reputation/
/v1/risk/:
get:
operationId: getDomainRiskScore
summary: Domain Risk Score
description: Provides risk scores and threat predictions based on DomainTools Proximity and Threat Profile algorithms.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainQueryRequired'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/DomainRiskScoreSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/domain-risk-score/
/v1/risk/evidence/:
get:
operationId: getRiskScoreEvidence
summary: Risk Score Evidence
description: Provides the reasons for a domain's risk score, categorized by evidence type.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainQueryRequired'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/RiskScoreEvidenceSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/domain-risk-score-evidence/
/v1/{ip}/host-domains/:
get:
operationId: getHostDomains
summary: Reverse IP
description: List of domains that share the same network host (IP Address).
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/ipAddressPath'
- $ref: '#/components/parameters/resultsLimit'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/ReverseIpSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/reverse-ip/
/v1/{nameServer}/name-server-domains/:
get:
operationId: getNameServerDomains
summary: Reverse Name Server
description: List of domains that share the same primary name server.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/nameServerPath'
- $ref: '#/components/parameters/resultsLimit'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/ReverseNameServerSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/reverse-nameserver/
/v1/{domain}/reverse-ip/:
get:
operationId: getReverseIpForDomain
summary: Reverse IP (from Domain)
description: List of domains that share the same IP address as the given domain.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainPath'
- $ref: '#/components/parameters/resultsLimit'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/ReverseIpSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/reverse-ip/
/v1/reverse-ip-whois/:
get:
operationId: getReverseIpWhois
summary: Reverse IP WHOIS
description: 'Provides a list of IP network ranges with WHOIS records that match a specific query.
NOTE: Either an `ip` or `query` parameter is required.
'
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/ipQuery'
- $ref: '#/components/parameters/reverseIpWhoisQuery'
- $ref: '#/components/parameters/countryCode'
- $ref: '#/components/parameters/whoisServer'
- $ref: '#/components/parameters/includeTotalCount'
- $ref: '#/components/parameters/page'
- $ref: '#/components/parameters/ipVersion'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/ReverseIpWhoisSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/reverse-ip-whois/
/v1/reverse-whois/:
get:
operationId: getReverseWhois
summary: Reverse WHOIS
description: Provides a list of domain names with WHOIS records that match specific query terms.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/reverseWhoisTerms'
- $ref: '#/components/parameters/excludeTerms'
- $ref: '#/components/parameters/reverseWhoisScope'
- $ref: '#/components/parameters/reverseWhoisMode'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/ReverseWhoisSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/reverse-whois/
/v2/domain-search/:
get:
operationId: getDomainSearch
summary: Domain Search
description: Searches active and deleted domain names that match a query string.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainSearchQuery'
- $ref: '#/components/parameters/excludeQuery'
- $ref: '#/components/parameters/maxLength'
- $ref: '#/components/parameters/minLength'
- $ref: '#/components/parameters/hasHyphen'
- $ref: '#/components/parameters/hasNumber'
- $ref: '#/components/parameters/activeOnly'
- $ref: '#/components/parameters/deletedOnly'
- $ref: '#/components/parameters/anchorLeft'
- $ref: '#/components/parameters/anchorRight'
- $ref: '#/components/parameters/page'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
responses:
'200':
$ref: '#/components/responses/DomainSearchSuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/domain-search/
/v1/domain-history/:
summary: Domain History
description: '### Intent
Track the complete evolution of a domain''s history across its infrastructure, content, and ownership. Identify significant events such as infrastructure weaponization, service changes, or registration transfers.
### Capabilities
- **Retrieve Complete History**: Fetch the available historical record for a domain.
- **Customize Data Views**: Isolate specific events by including or excluding data fields (e.g., `A`, `NS`, `MX`, `SSL`). This focuses on critical signals while reducing noise.
- **Contextualize the Current Lifecycle**: Use `Active` events to differentiate changes occurring within a domain''s current registration period from its prior history.
### Use Cases
- **Detect Infrastructure Weaponization**: Pinpoint when a domain''s infrastructure was weaponized by isolating changes in IP addresses, name servers, or mail servers. Use the `Active` date to distinguish modifications made during the current registration from previous ones, helping to identify the exact day it was brought online for a malicious campaign.
- **Monitor Service Activation**: Determine when a domain likely launched a functional service by identifying the first issuance of an SSL certificate.
- **Identify Ownership Changes**: Reveal a transfer of domain ownership by comparing `registrar` and `registrant` data across distinct registration lifecycles.
'
get:
operationId: getDomainHistory
summary: Domain History
description: Retrieve the complete historical record of changes to a domain's infrastructure, registration, and content. Filter results by specific field types to focus on relevant events.
tags:
- Lookups
parameters:
- $ref: '#/components/parameters/domainQueryRequired'
- $ref: '#/components/parameters/appPartner'
- $ref: '#/components/parameters/appName'
- $ref: '#/components/parameters/appVersion'
- $ref: '#/components/parameters/responseFormat'
- $ref: '#/components/parameters/resultsPageSize'
- $ref: '#/components/parameters/resultsOffset'
- $ref: '#/components/parameters/parsedDomainRdapFlag'
- $ref: '#/components/parameters/parsedWhoisFlag'
- $ref: '#/components/parameters/includeFields'
- $ref: '#/components/parameters/excludeFields'
responses:
'200':
$ref: '#/components/responses/DomainHistorySuccess'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
'503':
$ref: '#/components/responses/ServiceUnavailable'
externalDocs:
url: https://docs.domaintools.com/api/lookups/domain-history/
components:
schemas:
IdentifierString:
type: string
minLength: 1
maxLength: 128
description: A short identifier, code, or handle.
ParsedWhoisContact:
type: object
description: Contact information from a WHOIS record.
properties:
name:
type: string
description: Contact name.
org:
type: string
description: Organization name.
street:
type: array
description: Street address lines.
items:
type: string
city:
type: string
description: City.
state:
type: string
description: State or region.
postal:
type: string
description: Postal code.
country:
type: string
description: Country code.
phone:
type: string
description: Phone number.
fax:
type: string
description: Fax number.
email:
type: string
description: Email address.
ParsedWhoisIpContact:
type: object
description: Contact information from IP WHOIS record.
properties:
id:
type: string
description: Contact identifier/handle.
example: NFSNI-1
type:
type: string
description: Contact type.
enum:
- organization
- person
example: organization
name:
type: string
description: Contact name.
example: NearlyFreeSpeech.NET
address:
type: array
description: Postal address lines.
items:
type: string
example:
- 1540 INTERNATIONAL PKWY STE 2000
- LAKE MARY
- FL
- '32746'
country:
type: string
description: Country code (lowercase).
example: us
phone:
type: array
description: Phone numbers.
items:
type: string
example:
- '18887414678'
fax:
type: array
description: Fax numbers.
items:
type: string
email:
type: array
description: Email addresses.
items:
type: string
example:
- noc@nearlyfreespeech.net
descr:
type: array
description: Description or comments.
items:
type: string
contact_keys:
type: object
description: References to other contact IDs by role.
additionalProperties:
type: array
items:
type: string
remarks:
type: array
description: Additional remarks.
items:
type: string
notify_email:
type: array
description: Notification email addresses.
items:
type: string
abuse_mailbox:
type: array
description: Abuse reporting email addresses.
items:
type: string
mnt_keys:
type: object
description: Maintainer keys.
additionalProperties: true
created_date:
type: string
format: date-time
description: Date the contact was created.
example: '2008-02-01T00:00:00'
updated_date:
type: string
format: date-time
description: Date the contact was last updated.
example: '2018-05-22T00:00:00'
changed_by:
type: array
description: Change history.
items:
type: string
source:
type: string
description: Data source.
ref:
type: string
format: uri
description: Reference URL for this contact.
example: https://rdap.arin.net/registry/entity/NFSNI-1
other:
type: object
description: Additional properties.
additionalProperties: true
RiskScoreValue:
type: integer
minimum: 0
maximum: 100
description: A domain risk score value ranging from 0 (lowest risk) to 100 (highest risk).
BasicString:
type: string
minLength: 1
maxLength: 255
description: A non-empty string with a standard length limit.
ReverseIp:
type: object
description: Response for the Reverse IP endpoint.
properties:
response:
type: object
properties:
ip_addresses:
type: array
items:
type: object
properties:
domain_count:
type: integer
domain_names:
type: array
items:
type: string
ip_address:
type: string
ParsedDomainRdapResponse:
type: object
description: Response for the Parsed Domain RDAP endpoint.
properties:
response:
type: object
required:
- domain_rdap
- parsed_domain_rdap
- record_source
properties:
domain_rdap:
type: array
description: Raw RDAP records from registry and/or registrar sources.
items:
type: object
required:
- source
- timestamp
- link
- record
properties:
source:
type: string
description: The source of the RDAP record.
enum:
- registry
- registrar
example: registry
timestamp:
type: string
format: date-time
description: ISO 8601 timestamp when the RDAP record was retrieved.
example: '2025-10-21T11:42:11Z'
link:
type: string
format: uri
description: URL of the RDAP server that provided the record.
example: https://rdap.verisign.com/com/v1/domain/domaintools.com
record:
type: string
description: The raw RDAP record as a JSON string.
parsed_domain_rdap:
type: object
description: Parsed and normalized RDAP data.
required:
- domain
properties:
domain:
type: string
description: The domain name.
example: domaintools.com
handle:
type: string
description: The registry-assigned unique identifier for this domain.
example: 1697312_DOMAIN_COM-VRSN
domain_statuses:
type: array
description: Current status codes for the domain.
items:
type: string
example:
- client transfer prohibited
creation_date:
type: string
format: date-time
description: ISO 8601 timestamp of when the domain was registered.
example: '1998-08-02T04:00:00+00:00'
last_changed_date:
type: string
format: date-time
description: ISO 8601 timestamp of the last modification to the domain record.
example: '2020-01-09T23:06:29+00:00'
expiration_date:
type: string
format: date-time
description: ISO 8601 timestamp when the domain registration expires.
example: '2027-08-01T04:00:00+00:00'
registrar:
type: object
description: Information about the domain registrar.
properties:
name:
type: string
description: Name of the registrar.
example: eNom, LLC
iana_id:
type: string
description: IANA-assigned registrar ID.
example: '48'
contacts:
type: array
description: Registrar contact information.
items:
type: object
properties:
name:
type: string
description: Contact name.
org:
type: string
description: Organization name.
email:
type: string
description: Contact email address.
phone:
type: string
description: Contact phone number.
roles:
type: array
description: The roles this contact performs.
items:
type: string
enum:
- abuse
- technical
- administrative
- billing
example:
- abuse
contacts:
type: array
description: Domain contact information from RDAP.
items:
type: object
properties:
handle:
type: string
description: Unique identifier for this contact.
name:
type: string
description: Contact name. May be redacted for privacy.
org:
type: string
description: Organization name.
email:
type: string
description: Contact email address. May be redacted or a privacy service URL.
phone:
type: string
description: Contact phone number.
fax:
type: string
description: Contact fax number.
street:
type: string
description: Street address.
city:
type: string
description: City.
postal:
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# Full source: https://raw.githubusercontent.com/api-evangelist/domaintools/refs/heads/main/openapi/domaintools-lookups-api-openapi.yml