Start a record import session
Auth: Authorization: Bearer nsin_… or X-Api-Key: nsin_… — see API keys.
Scans the domain's current nameservers — a zone transfer where they
allow one, otherwise a sweep of common names — into a staging session.
Nothing is written to the zone. Requires records.edit.
The scan runs in the background: the session comes back scanning with
an empty records list, and you poll
GET .../records/import-sessions/current until it turns ready.
Each staged row carries the proxy setting it would be imported with
(proxied): on for the website rows the edge can carry — a
proxyable type pointing at an address the edge accepts — and off for
what proxying would break: mail hosts and in-zone MX targets,
underscored names (_acme-challenge, DKIM keys) and labels that name
a non-HTTP service (ssh, vpn, ns1, …), each with a warning saying
why. A row that would overwrite an existing record mirrors that
record's setting, because an import never changes it. Change any of it
per row in the commit body.
This works before the domain is active, including an external-DNS domain that is not verified yet: the owner can review and commit its scan at once. Only the automatic commit waits for verification.
Idempotent. If the domain already has an open session it comes back
with 200 and no new scan is started, so a double click or a retry
cannot start a second sweep.
Path parameters
- domainstringrequiredpath
The domain name (for example
example.com) — not a numeric id.
Request body
Content type: application/json
- sourcestring
Recorded on the session so support can answer "where did this import come from" months later. An unrecognised value falls back to
manual_scan.One of:"manual_scan""domain_create""zone_file"Default:"manual_scan"
Responses
200An open session already existed and is returned unchanged. No new scan was started.
Content type: application/json
- idinteger
- domain_idinteger
- statusstring
scanning— the sweep is running.ready— waiting for a commit or a discard.committing— a commit is in flight and holds the claim.auto_committed— nobody answered beforeauto_commit_atand the records were written anyway, rather than leaving the zone empty.superseded— replaced by a rescan.One of:"scanning""ready""committing""committed""auto_committed""discarded""superseded""failed" - sourcestringOne of:
"manual_scan""domain_create""zone_file" - clientstring
What started the session. An API key has nowhere to show a review screen, so adding a domain with a key still imports automatically; staged review is the panel path.
One of:"panel""api" - methodstring
Which branch found the records — a full zone transfer, or a resolver sweep of common names. The first support question about a bad import is where the records came from.
One of:"axfr""scan" - source_nsarray of string
The nameservers this scan read. Stored because a rescan has to reuse them: once the domain is delegated to NSIN, resolving it again finds our own — still empty — zone.
- errorstring
Why the scan, or the last commit attempt, failed.
- started_atstring (date-time)
- finished_atstring (date-time)
When the scan finished and the session turned
ready. - committed_atstring (date-time)
- auto_commit_atstring (date-time)
When an unanswered
readysession commits itself. Cleared by a commit, a discard or a rescan. - countsImportSessionCounts
The header line of a review screen.
Fields
- totalinteger
- preselectedinteger
Rows a
mode "all"commit would write. - proxiedinteger
- warningsinteger
Rows carrying at least one warning.
- recordsarray of ImportSessionRecord
Empty while
statusisscanning.Item fields
- idinteger
Staging row id. It is not a record id — it exists only until the session is committed or discarded.
- namestring
- typestringOne of:
"A""AAAA""CNAME""ANAME""NS""TXT""MX""SRV""PTR""CAA""TLSA""SSHFP""URI" - destinationstring
- ttlinteger
- mx_priorityinteger
- proxiedboolean
Whether this row would be proxied — and, because a
mode: "all"commit (the unattendedauto_commit_atone included) writes exactly this flag, what happens to the row if nobody answers.It is
truefor the rows the edge can carry: a proxyable type on a routable origin. It isfalsewherever proxying would take a service away rather than accelerate it — a mail host, the target of an in-zoneMX, an underscored name (_acme-challenge,selector1._domainkey), or a label that names something that does not speak HTTP (ssh,vpn,mysql,ns1, …). Those rows carry amail_hostornon_web_servicewarning saying so.An
overwriterow mirrors the record it would replace: an import refreshes content and TTL and never changes an existing record's proxy setting. - statusstring
overwritemeans the domain already holds a record with this name and type and it would be replaced. TXT is neveroverwrite: many TXT records share one name.One of:"new""overwrite""unsupported" - existing_idinteger
The record that would be replaced. Set when
statusisoverwrite. - proxy_eligibleboolean
Whether this row could be proxied if you switched it on — a proxyable type pointing at an address the edge will accept.
- preselectedboolean
Whether the row is included when you commit with
mode: "all". Rows carrying anerrorwarning arrive unticked. - warningsarray of ImportWarning
Item fields
- codestringOne of:
"unsupported""not_proxyable_type""private_address""points_at_nsin""proxy_ineligible_origin""mail_host""non_web_service""overwrite""wildcard" - severitystring
Only
errorrows arrive unticked (preselected: false) — they are the ones NSIN cannot import at all.One of:"info""warning""error" - messagestring
- reasonstring
The first warning's message, kept for clients written against the flat scan preview.
{
"id": 0,
"domain_id": 0,
"status": "scanning",
"source": "manual_scan",
"client": "panel",
"method": "axfr",
"source_ns": [
"string"
],
"error": "string",
"started_at": "2026-01-01T00:00:00Z",
"finished_at": "2026-01-01T00:00:00Z",
"committed_at": "2026-01-01T00:00:00Z",
"auto_commit_at": "2026-01-01T00:00:00Z",
"counts": {
"total": 0,
"preselected": 0,
"proxied": 0,
"warnings": 0
},
"records": [
{
"id": 0,
"name": "string",
"type": "A",
"destination": "string",
"ttl": 0,
"mx_priority": 0,
"proxied": true,
"status": "new",
"existing_id": 0,
"proxy_eligible": true,
"preselected": true,
"warnings": [
{
"code": "unsupported",
"severity": "info",
"message": "string"
}
],
"reason": "string"
}
]
}202A new session was created and its scan is running. status is
scanning and records stays empty until it finishes.
Content type: application/json
- idinteger
- domain_idinteger
- statusstring
scanning— the sweep is running.ready— waiting for a commit or a discard.committing— a commit is in flight and holds the claim.auto_committed— nobody answered beforeauto_commit_atand the records were written anyway, rather than leaving the zone empty.superseded— replaced by a rescan.One of:"scanning""ready""committing""committed""auto_committed""discarded""superseded""failed" - sourcestringOne of:
"manual_scan""domain_create""zone_file" - clientstring
What started the session. An API key has nowhere to show a review screen, so adding a domain with a key still imports automatically; staged review is the panel path.
One of:"panel""api" - methodstring
Which branch found the records — a full zone transfer, or a resolver sweep of common names. The first support question about a bad import is where the records came from.
One of:"axfr""scan" - source_nsarray of string
The nameservers this scan read. Stored because a rescan has to reuse them: once the domain is delegated to NSIN, resolving it again finds our own — still empty — zone.
- errorstring
Why the scan, or the last commit attempt, failed.
- started_atstring (date-time)
- finished_atstring (date-time)
When the scan finished and the session turned
ready. - committed_atstring (date-time)
- auto_commit_atstring (date-time)
When an unanswered
readysession commits itself. Cleared by a commit, a discard or a rescan. - countsImportSessionCounts
The header line of a review screen.
Fields
- totalinteger
- preselectedinteger
Rows a
mode "all"commit would write. - proxiedinteger
- warningsinteger
Rows carrying at least one warning.
- recordsarray of ImportSessionRecord
Empty while
statusisscanning.Item fields
- idinteger
Staging row id. It is not a record id — it exists only until the session is committed or discarded.
- namestring
- typestringOne of:
"A""AAAA""CNAME""ANAME""NS""TXT""MX""SRV""PTR""CAA""TLSA""SSHFP""URI" - destinationstring
- ttlinteger
- mx_priorityinteger
- proxiedboolean
Whether this row would be proxied — and, because a
mode: "all"commit (the unattendedauto_commit_atone included) writes exactly this flag, what happens to the row if nobody answers.It is
truefor the rows the edge can carry: a proxyable type on a routable origin. It isfalsewherever proxying would take a service away rather than accelerate it — a mail host, the target of an in-zoneMX, an underscored name (_acme-challenge,selector1._domainkey), or a label that names something that does not speak HTTP (ssh,vpn,mysql,ns1, …). Those rows carry amail_hostornon_web_servicewarning saying so.An
overwriterow mirrors the record it would replace: an import refreshes content and TTL and never changes an existing record's proxy setting. - statusstring
overwritemeans the domain already holds a record with this name and type and it would be replaced. TXT is neveroverwrite: many TXT records share one name.One of:"new""overwrite""unsupported" - existing_idinteger
The record that would be replaced. Set when
statusisoverwrite. - proxy_eligibleboolean
Whether this row could be proxied if you switched it on — a proxyable type pointing at an address the edge will accept.
- preselectedboolean
Whether the row is included when you commit with
mode: "all". Rows carrying anerrorwarning arrive unticked. - warningsarray of ImportWarning
Item fields
- codestringOne of:
"unsupported""not_proxyable_type""private_address""points_at_nsin""proxy_ineligible_origin""mail_host""non_web_service""overwrite""wildcard" - severitystring
Only
errorrows arrive unticked (preselected: false) — they are the ones NSIN cannot import at all.One of:"info""warning""error" - messagestring
- reasonstring
The first warning's message, kept for clients written against the flat scan preview.
{
"id": 0,
"domain_id": 0,
"status": "scanning",
"source": "manual_scan",
"client": "panel",
"method": "axfr",
"source_ns": [
"string"
],
"error": "string",
"started_at": "2026-01-01T00:00:00Z",
"finished_at": "2026-01-01T00:00:00Z",
"committed_at": "2026-01-01T00:00:00Z",
"auto_commit_at": "2026-01-01T00:00:00Z",
"counts": {
"total": 0,
"preselected": 0,
"proxied": 0,
"warnings": 0
},
"records": [
{
"id": 0,
"name": "string",
"type": "A",
"destination": "string",
"ttl": 0,
"mx_priority": 0,
"proxied": true,
"status": "new",
"existing_id": 0,
"proxy_eligible": true,
"preselected": true,
"warnings": [
{
"code": "unsupported",
"severity": "info",
"message": "string"
}
],
"reason": "string"
}
]
}401Missing, malformed, revoked or expired API key. (A valid key whose
account has been deactivated gets 403 account is inactive instead.)
Content type: application/json
- errorstringrequired
Human-readable description of what went wrong.
{
"error": "invalid API key"
}403The key is read-only, your role on the domain lacks the required permission, or the domain's plan does not include the feature.
Content type: application/json
- errorstringrequired
Human-readable description of what went wrong.
{
"error": "read-only API key"
}404No such domain, or it is not visible to this account. Domains you cannot access are reported as not found rather than forbidden.
Content type: application/json
- errorstringrequired
Human-readable description of what went wrong.
{
"error": "read-only API key"
}409The domain is disabled or banned.
Content type: application/json
- errorstringrequired
Human-readable description of what went wrong.
{
"error": "domain is disabled"
}429A scan for this domain ran less than five minutes ago. One scan is up to
roughly 1100 outbound DNS queries, so it is throttled per domain — this
is separate from, and additional to, the per-key rate limit. Wait
retry_after_seconds and retry.
Content type: application/json
- errorstringrequired
Human-readable description of what went wrong.
- retry_after_secondsinteger
Seconds left on this domain's five-minute scan window.
{
"error": "a scan for this domain ran a moment ago; please wait before scanning again",
"retry_after_seconds": 173
}Example request
curl -X POST "https://api.nsin.ir/domains/example.com/records/import-sessions" \
-H "Authorization: Bearer $NSIN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"source": "manual_scan"
}'