List Outbound Domains
List every domain a site links to, with its Site Strength, page by page or as one CSV or JSONL file.
GEThttps://rankfield.dev/v1/domains/{domain}/outbound-domains
The same list as List All Referring Domains, in the other direction: the domains that the site links to.
Parameters
Headers
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
Authorization | string | Yes | – | Bearer followed by your API key. See Authentication. |
Path parameters
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
domain | string | Yes | – | The domain, such as example.com. Case is ignored, a leading www. is removed, and a full URL is read as its host. URL-encode it in the path. |
Query parameters
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
limit | integer | No | 100 | Rows per page, 1–1,000. |
cursor | string | No | – | The nextCursor of the previous page. Leave it out for the first page. |
minSiteStrength | integer | No | 0 | Only domains with at least this Site Strength, 0–100. |
sort | string | No | strength_desc | strength_desc (strongest first) or strength_asc. |
format | string | No | json | json, or csv or jsonl to download the whole list in one answer (no cursor). |
Response
| Field | Type | Description |
|---|---|---|
domain | string | The domain you asked about. |
inGraph | boolean | Only when the domain isn't in our link graph yet: false, with an empty list. Absent otherwise. |
crawlRelease | string | The web graph release the list comes from, such as 2026-may-jun-jul. |
asOf | string | The release date (UTC). |
buildId | string | The index build. A cursor only works with the build it came from. |
siteStrengthVersion | string | The Site Strength scoring version. |
totalGraphRelationships | integer | How many domains are in the whole list, before minSiteStrength. |
evidenceCoverage | string | domain-graph: domain-to-domain links. Source page URLs and anchor text are not part of this list. |
sort | string | The order used. |
minSiteStrength | integer | The filter used. |
destinations | array | This page's domains, each {domain, siteStrength}. siteStrength is null when the domain has no score. |
nextCursor | string | null | Pass it as cursor for the next page. null on the last page. |
publishedSummaryCount and countReconciled are always null here: there is no separate outbound count to check against.
Paging, CSV and JSONL work as in List All Referring Domains. Over 50,000 rows, a file download becomes an export job.
Errors
| Status | When |
|---|---|
| 400 | The domain is not a valid domain name, or a parameter is out of range. |
| 401 | No valid API key. |
| 429 | Too many requests at once; wait for Retry-After. |
| 502 | The graph lookup behind the API failed. Retry later. |
| 503 | The graph index is unavailable for a moment. Retry after Retry-After. |
Limits
No per-key limits. When the server is busy you get 429 with Retry-After. File downloads over 50,000 rows become export jobs, one at a time per key.
MCP
On the MCP server, the tool for this is list_outbound_domains.