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OpenAPI Specification

openapi: 3.2.0
info:
  title: Domain Lab Domain Status API
  version: 1.0.0
  description: 'REST API for Domain Lab, a domain-monitoring service. Query monitored domains, plan limits and usage, per-domain alert settings, AI reviews, registrar connections, WHOIS/registration data, SSL certificates, DNS records, email security (SPF, DKIM, DMARC, MTA-STS, TLS reporting, BIMI, DNSSEC) with grades and history, change events, and alert history; add, update, and remove monitored domains. Requires an active subscription or trial. Limits: 120 requests/minute, 50,000 requests/month (adding a domain, rescanning, running an AI review and syncing a registrar connection each count as 5). Every response carries X-RateLimit-Remaining-Minute and X-RateLimit-Remaining-Month headers.'
  contact:
    url: https://www.domainlab.app/help
servers:
- url: https://www.domainlab.app/api/v1
security:
- apiKey: []
tags:
- name: Domain Status
paths:
  /domain-status:
    get:
      operationId: checkDomainStatus
      summary: Check the live status of ANY domain (not just monitored ones)
      description: 'One-shot verdict combining registry (RDAP), DNS, and website signals: available, parked, for-sale, dead, active, or an expiry-lifecycle state (releasing, expiring, expired-grace) with an estimated release date. The same engine that powers Domain Lab''s site-status change alerts.'
      parameters:
      - name: domain
        in: query
        required: true
        schema:
          type: string
        description: Domain name to check, e.g. example.com
      responses:
        '200':
          description: Status verdict
          content:
            application/json:
              schema:
                type: object
                properties:
                  domain:
                    type: string
                  verdict:
                    type: string
                    enum:
                    - available
                    - releasing
                    - expiring
                    - expired-grace
                    - for-sale
                    - parked
                    - dead
                    - active
                  confidence:
                    type: string
                    enum:
                    - high
                    - medium
                    - low
                  headline:
                    type: string
                    description: Plain-English one-line verdict
                  signals:
                    type: array
                    items:
                      type: string
                    description: Human-readable evidence for the verdict
                  registered:
                    type: boolean
                  registrar:
                    type:
                    - string
                    - 'null'
                  expires_at:
                    type:
                    - string
                    - 'null'
                    format: date-time
                  epp_statuses:
                    type: array
                    items:
                      type: string
                  nameservers:
                    type: array
                    items:
                      type: string
                  has_dns:
                    type: boolean
                  http_reachable:
                    type:
                    - boolean
                    - 'null'
                  estimated_release_date:
                    type:
                    - string
                    - 'null'
                    format: date-time
                    description: 'For expiry-lifecycle verdicts: when the domain is likely to become available to register'
                  release_note:
                    type:
                    - string
                    - 'null'
        '400':
          description: Invalid domain name
        '401':
          description: Missing or invalid API key
        '403':
          description: Account lacks API access (no active subscription or trial)
        '429':
          description: Rate limit or monthly quota exceeded. Respect the Retry-After header. code is RATE_LIMITED (short-lived) or MONTHLY_QUOTA_EXCEEDED (resets next period).
      tags:
      - Domain Status
components:
  securitySchemes:
    apiKey:
      type: http
      scheme: bearer
      description: 'Domain Lab API key (dlb_...), created in Preferences → API. Send as: Authorization: Bearer dlb_...'