GET /v1/compute/servers/{serverId}/reverse-dns

Authentication

Send an API key as a bearer token. The key must carry the sites.view permission; a key without it is refused with 403, not 404.

This endpoint takes no organisation id. Your key already identifies the organisation it belongs to, and the response is scoped to it.

Try it

Replace anything in angle brackets with your own values, and the key placeholder with a key from your dashboard.

curl -X GET https://api.zinndigital.com/v1/compute/servers/{serverId}/reverse-dns \
  -H "Authorization: Bearer zdk_live_…"

Signed in? The API console in your dashboard fills in your real organisation id and your own key, and runs the request against the live API so you can see the actual response. Open this endpoint in the API console

Details

⭐ **The highest-value control on a machine we source ourselves**, and the platform had none anywhere before it. A freshly built machine's IPv4 PTR is the *supplier's* own hostname, which does two things at once: it **names our supplier** to anyone who runs `dig -x`, and it **breaks outbound mail**, because every receiving mail server of consequence checks forward-confirmed reverse DNS. ⛔⛔ **A blank `hostname` means the address has NO PTR at all — it does not mean "the default".** Measured across every machine on our own account: each IPv4 carries a supplier default and each IPv6 carries nothing. Render the two differently, or you tell a customer their IPv6 leaks when it does not, and hide the address that does. Read live on every request and never cached: a PTR can be changed at the provider, and a cached one is a claim about the past presented as the present. Requires `sites.view`.

Parameters

Response

Errors this endpoint can return

401 · 403 · 404 · 422 · 429 · 503