Compare current and historical website origins

Run a scoped HTTPS origin comparison for one owned domain host. The endpoint resolves current public DNS, probes the current public answer using the requested Host header and SNI, probes the current HostUp web-hosting origin from the DNS zone when available, and probes previous web origins from the latest pre-HostUp DNS snapshot. Use this before telling a customer that Cloudflare/CDN is the root cause: CDN edge IPs are traffic-path evidence, while origin HTTP status shows whether the HostUp origin has website content.

Domains & DNS DNS

Authentication

Required API scopes: read:dnsread:domains

Use Authorization: Bearer <token> for API keys. Dashboard sessions may also use hostup_session.

Context

Path Parameters

id string required Example: dom_01hxa3b4c5d6e7f8g9h0j1k2m3

Public domain ID from `GET /api/v2/domains`. Do not invent this value; use the exact ID returned by the referenced API response.

Query Parameters

host string · Example: example.se

Domain host to compare. Defaults to the domain apex. Must be the domain itself or one of its subdomains, for example `example.se` or `www.example.se`.

Headers

Accept Example
Content-Type Example

Responses

200 Current public, HostUp-origin, and previous-origin HTTPS comparison.
host string required
asciiHost string required
checkedAt string required
currentPublic object required
currentPublic.a array<string> required
currentPublic.aaaa array<string> required
currentPublic.cname array<string> required
currentPublic.probedIp stringnull required
currentPublic.appearsCdnEdge boolean required
currentPublic.edgeProvider stringnull required · Example: cloudflare
currentPublic.httpStatus integernull required
currentPublic.server stringnull required
currentPublic.bodyBytes integer required
currentPublic.title stringnull required
currentPublic.responseMs integer required
currentPublic.errorReason stringnull required
hostupOrigin null required
hostupOriginReason stringnull required
previousOrigins array<object> required
previousOrigins[].ip string required · Example: 185.113.11.10
previousOrigins[].recordName stringnull required · Example: @
previousOrigins[].recordType string · enum required · Example: A
A
AAAA
CNAME
ALIAS
previousOrigins[].target stringnull required · Example: null

CNAME/ALIAS target hostname when the probed IP came from resolving an alias.

previousOrigins[].source string required · Example: current_hostup_dns_record

Origin source, for example `current_hostup_dns_record` or the DNS snapshot source such as `pre_nameserver_change`.

previousOrigins[].snapshotId string · Example: dnss_01hxa3b4c5d6e7f8g9h0j1k2m3

Snapshot public ID when this origin came from DNS history.

previousOrigins[].capturedAt string · Example: 2026-05-19T09:55:00.000Z

Snapshot capture time when this origin came from DNS history.

previousOrigins[].providerHint stringnull · Example: ns1.old-provider.example (203.0.113.10)

Snapshot provider hint, usually the old authoritative nameserver.

previousOrigins[].httpStatus integernull required · Example: 404
previousOrigins[].server stringnull required · Example: LiteSpeed
previousOrigins[].bodyBytes integer required · Example: 1251
previousOrigins[].title stringnull required · Example: 404 Not Found
previousOrigins[].responseMs integer required · Example: 142
previousOrigins[].errorReason stringnull required · Example: null
previousOriginsReason stringnull required
diagnosis object required
diagnosis.summary string required
diagnosis.confidence string · enum required
high
medium
low
diagnosis.evidence array<string> required
400 Invalid host filter.
type string · Example: https://developer.hostup.se/errors/invalid_request
title string · Example: Validation failed
status integer · Example: 400
detail string · Example: The request body failed validation.
code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on `detail`.

instance string · Example: /api/v2/orders
requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3
timestamp string · Example: 2026-04-27T12:34:56.000Z
errors array<object>

Field-level validation errors when `code` is `invalid_request`.

errors[].pointer string required · Example: /items/0/eppCode
errors[].detail string required · Example: `eppCode` is required for this transfer.
errors[].code string required · Example: missing_required
extensions object
401 Unauthorized. Authentication is required.
type string · Example: https://developer.hostup.se/errors/invalid_request
title string · Example: Validation failed
status integer · Example: 400
detail string · Example: The request body failed validation.
code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on `detail`.

instance string · Example: /api/v2/orders
requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3
timestamp string · Example: 2026-04-27T12:34:56.000Z
errors array<object>

Field-level validation errors when `code` is `invalid_request`.

errors[].pointer string required · Example: /items/0/eppCode
errors[].detail string required · Example: `eppCode` is required for this transfer.
errors[].code string required · Example: missing_required
extensions object
403 Forbidden. The caller lacks a required scope or does not own the resource.
type string · Example: https://developer.hostup.se/errors/invalid_request
title string · Example: Validation failed
status integer · Example: 400
detail string · Example: The request body failed validation.
code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on `detail`.

instance string · Example: /api/v2/orders
requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3
timestamp string · Example: 2026-04-27T12:34:56.000Z
errors array<object>

Field-level validation errors when `code` is `invalid_request`.

errors[].pointer string required · Example: /items/0/eppCode
errors[].detail string required · Example: `eppCode` is required for this transfer.
errors[].code string required · Example: missing_required
extensions object
404 Not found. The resource does not exist or is not owned by the caller.
type string · Example: https://developer.hostup.se/errors/invalid_request
title string · Example: Validation failed
status integer · Example: 400
detail string · Example: The request body failed validation.
code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on `detail`.

instance string · Example: /api/v2/orders
requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3
timestamp string · Example: 2026-04-27T12:34:56.000Z
errors array<object>

Field-level validation errors when `code` is `invalid_request`.

errors[].pointer string required · Example: /items/0/eppCode
errors[].detail string required · Example: `eppCode` is required for this transfer.
errors[].code string required · Example: missing_required
extensions object
429 Rate limited. Retry after the limit resets. 429 responses include `Retry-After` seconds plus `X-RateLimit-*` headers.
type string · Example: https://developer.hostup.se/errors/invalid_request
title string · Example: Validation failed
status integer · Example: 400
detail string · Example: The request body failed validation.
code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on `detail`.

instance string · Example: /api/v2/orders
requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3
timestamp string · Example: 2026-04-27T12:34:56.000Z
errors array<object>

Field-level validation errors when `code` is `invalid_request`.

errors[].pointer string required · Example: /items/0/eppCode
errors[].detail string required · Example: `eppCode` is required for this transfer.
errors[].code string required · Example: missing_required
extensions object
500 Internal error. Retry later or contact support if the issue persists.
type string · Example: https://developer.hostup.se/errors/invalid_request
title string · Example: Validation failed
status integer · Example: 400
detail string · Example: The request body failed validation.
code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on `detail`.

instance string · Example: /api/v2/orders
requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3
timestamp string · Example: 2026-04-27T12:34:56.000Z
errors array<object>

Field-level validation errors when `code` is `invalid_request`.

errors[].pointer string required · Example: /items/0/eppCode
errors[].detail string required · Example: `eppCode` is required for this transfer.
errors[].code string required · Example: missing_required
extensions object
GET https://cloud.hostup.se/api/v2/domains/{id}/dns/diagnostics/origin-compare
For AI assistants
View as Markdown
cURL 
curl -X GET "https://cloud.hostup.se/api/v2/domains/dom_01hxa3b4c5d6e7f8g9h0j1k2m3/dns/diagnostics/origin-compare" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Accept: application/json"
Response 
{
  "host": "example.se",
  "asciiHost": "example.se",
  "checkedAt": "2026-05-19T10:30:00.000Z",
  "currentPublic": {
    "a": [
      "104.21.82.230",
      "172.67.207.236"
    ],
    "aaaa": [],
    "cname": [],
    "probedIp": "104.21.82.230",
    "appearsCdnEdge": true,
    "edgeProvider": "cloudflare",
    "httpStatus": 404,
    "server": "cloudflare",
    "bodyBytes": 1251,
    "title": "404 Not Found",
    "responseMs": 188,
    "errorReason": null
  },
  "hostupOrigin": {
    "ip": "185.113.11.10",
    "recordName": "@",
    "recordType": "A",
    "target": null,
    "source": "current_hostup_dns_record",
    "httpStatus": 404,
    "server": "LiteSpeed",
    "bodyBytes": 1251,
    "title": "404 Not Found",
    "responseMs": 142,
    "errorReason": null
  },
  "hostupOriginReason": null,
  "previousOrigins": [
    {
      "ip": "18.208.88.157",
      "recordName": "@",
      "recordType": "A",
      "target": null,
      "source": "pre_nameserver_change",
      "snapshotId": "dnss_01hxa3b4c5d6e7f8g9h0j1k2m3",
      "capturedAt": "2026-05-19T09:55:00.000Z",
      "providerHint": "ns1.old-provider.example (203.0.113.10)",
      "httpStatus": 200,
      "server": "Netlify",
      "bodyBytes": 56057,
      "title": "Example website",
      "responseMs": 210,
      "errorReason": null
    }
  ],
  "previousOriginsReason": null,
  "diagnosis": {
    "summary": "Public DNS appears to use a CDN edge, but the stronger signal is that the HostUp origin returns 404 while a previous origin still returns a working site.",
    "confidence": "high",
    "evidence": [
      "Current public HTTPS response appears to be served through cloudflare.",
      "HostUp origin 185.113.11.10 returned HTTP 404.",
      "Previous origin 18.208.88.157 returned HTTP 200."
    ]
  }
}