Developer Reference

DNS History

Explore DNS History API documentation, request parameters, response fields, code examples, and error handling for DomScan integrations.

DNS History

Review day-level DNS values observed by prior successful DomScan lookups. Beta coverage is not an internet-wide passive DNS archive.

GET /v1/dns/history

Query Parameters

Parameter	Type	required
domain	string	required
type	string	optional
from	string	optional
to	string	optional
limit	integer	optional

Response Fields

Field	Type
`domain`	string
`history[]`	object[]
`history[]`	object
`history[].date`	string
`history[].record_type`	string
`history[].changes[]`	object[]
`history[].changes[]`	object
`history[].changes[].action`	string
`history[].changes[].value`	string
`history[].changes[].ttl`	integer \| null
`current_records`	object
`first_seen`	string \| null
`last_seen`	string \| null
`total_changes`	integer
`record_types_tracked[]`	string[]
`beta_notice`	string
`meta`	object
`meta.note`	string
`meta.data_source`	string
`meta.history_limit`	integer
`meta.history_rows_evaluated`	integer
`meta.history_rows_truncated`	boolean
`meta.current_records_scope`	string

Example Request

curl -H "X-API-Key: $DOMSCAN_API_KEY" "https://domscan.net/v1/dns/history?domain=example.com&type=A&from=2026-01-01&to=2026-04-15&limit=10"

Example Response

{
  "domain": "example.com",
  "history": [
    {
      "date": "2026-04-13",
      "record_type": "A",
      "changes": [
        {
          "action": "added",
          "value": "104.20.23.154"
        },
        {
          "action": "added",
          "value": "172.66.147.243"
        },
        {
          "action": "removed",
          "value": "104.18.26.120"
        }
      ]
    }
  ],
  "current_records": {
    "A": [
      "104.20.23.154",
      "172.66.147.243"
    ]
  },
  "first_seen": "2026-01-01",
  "last_seen": "2026-04-13",
  "total_changes": 3,
  "record_types_tracked": [
    "A"
  ],
  "beta_notice": "Beta observation log. Coverage comes only from successful DomScan DNS lookups. Dates are day-level, changes between lookups can be missed, and no external passive DNS sources are included.",
  "meta": {
    "note": "Lookup-driven DomScan observations only. Dates are day-level, gaps can miss changes, and no external passive DNS sources are included.",
    "data_source": "internal",
    "history_limit": 100,
    "history_rows_evaluated": 3,
    "history_rows_truncated": false,
    "current_records_scope": "all_stored_current_records"
  }
}