List referring domains pointing to a target

Return the domains that link to a target domain, subdomain, or page, each with backlink, referring-domain, and spam-score counters for referring-domain analysis.

Pricing — $$ · min $0.05

Minimum 50 credits ($0.05) per call. Records returned above the minimum bill 1 credit ($0.001) each.

Authorization

bearerAuth

AuthorizationBearer <token>

UnifAPI API key. Provider credentials are managed by UnifAPI.

In: header

Pin the API version an integration was built against (date-based, e.g. 2026-07-01). Omit to use the current version. Public URL paths stay stable and unversioned; breaking changes ship under a new dated version and are announced with Deprecation and Sunset response headers. The served version is echoed in every response's Unifapi-Version header. Policy: https://unifapi.com/versioning.md

Idempotency-Key?string

Client-supplied unique key that makes a write request safe to retry. If a request with the same key was already processed, the original response is replayed (with Idempotency-Replayed: true) instead of executing — and billing — again. Send a fresh UUID per logical operation. Best-effort with a 24h window.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

target*string

Domain, subdomain, or page to analyze. A domain or subdomain is specified without https:// and www. (example.com); a page is specified as an absolute URL (https://example.com/blog/).

backlinks_status_type?SeoBacklinksStatusType

Which backlinks to count: live (found on the last check, default), all, or lost.

include_subdomains?boolean

Include backlinks pointing to the target's subdomains. Defaults to true.

include_indirect_links?boolean

Include indirect links (via redirects or canonicals) to the target. Defaults to true.

exclude_internal_backlinks?boolean

Exclude internal backlinks from the target's own subdomains. Defaults to true.

internal_list_limit?integer

Maximum number of entries kept in each referring_links_* breakdown map. Defaults to 10.

rank_scale?SeoBacklinksRankScale

Scale for rank values: one_thousand (0-1000, default) or one_hundred (0-100).

filters?||

Filter the returned referring domains. Provide a single condition {"field","op","value"} or an {"and":[…]} / {"or":[…]} group of conditions (nest groups for mixed logic), up to 8 conditions. Operators: =, <>, <, <=, >, >=, in, not_in, like, not_like, ilike, not_ilike, match, not_match (use an array value with in / not_in). Filterable fields: domain (referring domain); rank (backlink rank, 0-1000); backlinks (number of backlinks); backlinks_spam_score (average spam score, 0-100); referring_domains (referring domains count); referring_main_domains (referring root domains count); referring_pages (referring pages count); referring_ips (referring IPs count); referring_subnets (referring subnets count); broken_backlinks (backlinks to broken pages); broken_pages (broken pages still receiving backlinks); first_seen (ISO date the first backlink was found); lost_date (ISO date the last backlink was lost). Example: {"and":[{"field":"rank","op":">","value":200},{"field":"backlinks","op":">","value":10}]}

order_by?array<>

Sort the returned referring domains. Each rule is {"field","dir"} with dir asc or desc; up to 3 rules, applied in order. Sortable fields: domain, rank, backlinks, backlinks_spam_score, referring_domains, referring_main_domains, referring_pages, referring_ips, referring_subnets, broken_backlinks, broken_pages, first_seen, lost_date.

limit?integer

Maximum number of records to return. Defaults to 100.

offset?integer

Number of records to skip from the start of the results.

view?string

Response Body

`application/json`

curl -X POST "https://example.com/seo/backlinks/referring-domains" \  -H "Content-Type: application/json" \  -d '{    "target": "string"  }'

{  "request_id": "string",  "data": {    "target": "string",    "view": "summary",    "total_count": 0,    "results": [      {        "domain": "string",        "rank": 0,        "backlinks": 0,        "backlinks_spam_score": 0,        "first_seen": "string",        "lost_date": "string",        "broken_backlinks": 0,        "broken_pages": 0,        "referring_domains": 0,        "referring_main_domains": 0,        "referring_pages": 0,        "referring_ips": 0,        "referring_subnets": 0,        "referring_domains_nofollow": 0,        "referring_main_domains_nofollow": 0,        "referring_pages_nofollow": 0,        "referring_links_tld": {          "property1": 0,          "property2": 0        },        "referring_links_types": {          "property1": 0,          "property2": 0        },        "referring_links_attributes": {          "property1": 0,          "property2": 0        },        "referring_links_platform_types": {          "property1": 0,          "property2": 0        },        "referring_links_semantic_locations": {          "property1": 0,          "property2": 0        },        "referring_links_countries": {          "property1": 0,          "property2": 0        }      }    ]  },  "billing": {    "credits_charged": 0,    "records_charged": 0,    "balance_remaining": 0,    "truncated_due_to_balance": true  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

{  "error": {    "type": "validation_error",    "message": "string",    "request_id": "string",    "issues": [      null    ],    "billing": {      "credits_required": 0,      "credits_charged": 0,      "records_charged": 0,      "balance_remaining": 0,      "truncated_due_to_balance": true    }  }}

List referring domains pointing to a target

Authorization

Header Parameters

Request Body

Response Body

200application/json

400application/json

401application/json

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404application/json

429application/json

500application/json

502application/json

503application/json

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