curl --request GET \
  --url https://api.hubapi.com/cms/v3/domains/{domainId} \
  --header 'Authorization: Bearer <token>'

{
  "domain": "<string>",
  "id": "<string>",
  "isResolving": true,
  "isUsedForBlogPost": true,
  "isUsedForEmail": true,
  "isUsedForKnowledge": true,
  "isUsedForLandingPage": true,
  "isUsedForSitePage": true,
  "correctCname": "<string>",
  "created": "2023-11-07T05:31:56Z",
  "isSslEnabled": true,
  "isSslOnly": true,
  "manuallyMarkedAsResolving": true,
  "primaryBlogPost": true,
  "primaryEmail": true,
  "primaryKnowledge": true,
  "primaryLandingPage": true,
  "primarySitePage": true,
  "secondaryToDomain": "<string>",
  "updated": "2023-11-07T05:31:56Z"
}