开发者参考

反向 MX 查询（已弃用） API 文档

反向 MX 查询（已弃用） API 文档: 已弃用：此端点只查询 DomScan 先前 API 查询产生的被动缓存，不是全网反向 MX 数据集。

反向 MX 查询（已弃用）

已弃用：此端点只查询 DomScan 先前 API 查询产生的被动缓存，不是全网反向 MX 数据集。

GET /v1/reverse/mx

查询参数

参数	类型	说明
mx 必需	string	Mail server hostname to check in the deprecated DomScan passive cache (e.g., "aspmx.l.google.com")
limit 可选	number	Maximum cached results to return. Default: 100, max: 1000

使用场景

Check cached DomScan observations for an MX host
Review prior API lookup context for mail infrastructure
Confirm whether DomScan has seen matching domains before
Use as a limited legacy signal, not a full dataset

请求示例

# Deprecated limited cache lookup for prior DomScan DNS observations
curl "https://domscan.net/v1/reverse/mx?mx=aspmx.l.google.com&limit=100"

# Deprecated limited cache lookup for another MX hostname
curl "https://domscan.net/v1/reverse/mx?mx=outlook.protection.outlook.com"

响应示例

{
  "query": {
    "mx": "aspmx.l.google.com",
    "match": "hostname"
  },
  "deprecated": true,
  "deprecation_notice": "This endpoint is deprecated. It only searches DomScan passive cache entries from prior API lookups and is not an internet-wide reverse DNS dataset.",
  "results": [],
  "summary": {
    "total_found": 0,
    "returned": 0
  },
  "page": {
    "limit": 100,
    "next_cursor": null
  },
  "meta": {
    "source": "passive_dns",
    "note": "Results limited to domains previously queried through this API"
  }
}

响应字段

字段	类型
`query`	object
`query.mx`	string
`query.match`	string
`deprecated`	boolean
`deprecation_notice`	string
`results[]`	object[]
`results[]`	object
`summary`	object
`summary.total_found`	integer
`summary.returned`	integer
`page`	object
`page.limit`	integer
`page.next_cursor`	string \| null
`meta`	object
`meta.generated_at`	string
`meta.source`	string
`meta.query_time_ms`	integer
`meta.note`	string
`cache`	object
`cache.hit`	boolean
`cache.age_s`	integer
`cache.ttl_s`	integer
`cache.key`	string