{
"openapi": "3.0.1",
"info": {
"title": "Backlink Checker & Bulk Domain Authority",
"description": "Check backlinks and authority for up to 1,000 domains or URLs per run: authority score (0-100), backlinks, referring domains, dofollow share, spam score, new and lost links. Plus full backlink lists with anchors and source authority, and only-new-backlink alerts. No API key needed.",
"version": "1.0",
"x-build-id": "OkXTAXzqaMxGGWGYD"
},
"servers": [
{
"url": "https://api.apify.com/v2"
}
],
"paths": {
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"post": {
"operationId": "run-sync-get-dataset-items-vncntlabs-backlink-checker",
"x-openai-isConsequential": false,
"summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.",
"tags": [
"Run Actor"
],
"requestBody": {
"required": true,
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/inputSchema"
}
}
}
},
"parameters": [
{
"name": "token",
"in": "query",
"required": true,
"schema": {
"type": "string"
},
"description": "Enter your Apify token here"
}
],
"responses": {
"200": {
"description": "OK"
}
}
}
},
"/acts/vncntlabs~backlink-checker/runs": {
"post": {
"operationId": "runs-sync-vncntlabs-backlink-checker",
"x-openai-isConsequential": false,
"summary": "Executes an Actor and returns information about the initiated run in response.",
"tags": [
"Run Actor"
],
"requestBody": {
"required": true,
"content": {
"application/json": {
"schema": {
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}
}
},
"parameters": [
{
"name": "token",
"in": "query",
"required": true,
"schema": {
"type": "string"
},
"description": "Enter your Apify token here"
}
],
"responses": {
"200": {
"description": "OK",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/runsResponseSchema"
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},
"/acts/vncntlabs~backlink-checker/run-sync": {
"post": {
"operationId": "run-sync-vncntlabs-backlink-checker",
"x-openai-isConsequential": false,
"summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
"tags": [
"Run Actor"
],
"requestBody": {
"required": true,
"content": {
"application/json": {
"schema": {
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}
}
},
"parameters": [
{
"name": "token",
"in": "query",
"required": true,
"schema": {
"type": "string"
},
"description": "Enter your Apify token here"
}
],
"responses": {
"200": {
"description": "OK"
}
}
}
}
},
"components": {
"schemas": {
"inputSchema": {
"type": "object",
"required": [
"targets"
],
"properties": {
"targets": {
"title": "Domains or URLs",
"type": "array",
"description": "Up to 1,000 per run. A domain (example.com, subdomains included) or a page URL (https://example.com/blog/post) for page-level data.",
"items": {
"type": "string"
}
},
"includeMetrics": {
"title": "Authority and backlink metrics",
"type": "boolean",
"description": "One row per target: authority score (DataForSEO rank 0-100, not Moz DA / Ahrefs DR), backlinks, referring domains (dofollow and total), referring IPs and subnets, spam score, broken links, first seen, top TLDs, link types and countries.",
"default": true
},
"newLostDays": {
"title": "New and lost backlinks (days)",
"minimum": 0,
"maximum": 365,
"type": "integer",
"description": "Optional: also count backlinks gained and lost over the last N days (e.g. 30). 0 = off.",
"default": 0
},
"listType": {
"title": "Backlink list",
"enum": [
"backlinks",
"referring_domains",
"none"
],
"type": "string",
"description": "Lists are fetched for the first 50 targets of a run.",
"default": "backlinks"
},
"maxRowsPerTarget": {
"title": "Max rows per target",
"minimum": 1,
"maximum": 10000,
"type": "integer",
"description": "Backlinks or referring domains per target, up to 10,000.",
"default": 100
},
"sortBy": {
"title": "Sort by",
"enum": [
"strongest",
"newest"
],
"type": "string",
"description": "Strongest = highest source authority first.",
"default": "strongest"
},
"dofollowOnly": {
"title": "Dofollow links only",
"type": "boolean",
"description": "Backlinks list only.",
"default": false
},
"onePerDomain": {
"title": "One backlink per linking domain",
"type": "boolean",
"description": "Backlinks list only: keep the best link from each referring domain.",
"default": false
},
"maxSpamScore": {
"title": "Max spam score",
"minimum": 0,
"maximum": 100,
"type": "integer",
"description": "Optional: drop links (or referring domains) with a spam score above this, e.g. 30."
},
"onlyNewBacklinks": {
"title": "Only new backlinks (monitoring)",
"type": "boolean",
"description": "For scheduled runs: returns only backlinks not delivered by earlier runs. One bulk lookup per run checks which targets gained links; lists are fetched only for those. History is kept in your Apify account (key-value store 'backlink-monitor').",
"default": false
},
"monitorId": {
"title": "Monitor name",
"type": "string",
"description": "Optional. Keeps this monitor's history separate, e.g. client-acme."
}
}
},
"runsResponseSchema": {
"type": "object",
"properties": {
"data": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"actId": {
"type": "string"
},
"userId": {
"type": "string"
},
"startedAt": {
"type": "string",
"format": "date-time",
"example": "2025-01-08T00:00:00.000Z"
},
"finishedAt": {
"type": "string",
"format": "date-time",
"example": "2025-01-08T00:00:00.000Z"
},
"status": {
"type": "string",
"example": "READY"
},
"meta": {
"type": "object",
"properties": {
"origin": {
"type": "string",
"example": "API"
},
"userAgent": {
"type": "string"
}
}
},
"stats": {
"type": "object",
"properties": {
"inputBodyLen": {
"type": "integer",
"example": 2000
},
"rebootCount": {
"type": "integer",
"example": 0
},
"restartCount": {
"type": "integer",
"example": 0
},
"resurrectCount": {
"type": "integer",
"example": 0
},
"computeUnits": {
"type": "integer",
"example": 0
}
}
},
"options": {
"type": "object",
"properties": {
"build": {
"type": "string",
"example": "latest"
},
"timeoutSecs": {
"type": "integer",
"example": 300
},
"memoryMbytes": {
"type": "integer",
"example": 1024
},
"diskMbytes": {
"type": "integer",
"example": 2048
}
}
},
"buildId": {
"type": "string"
},
"defaultKeyValueStoreId": {
"type": "string"
},
"defaultDatasetId": {
"type": "string"
},
"defaultRequestQueueId": {
"type": "string"
},
"buildNumber": {
"type": "string",
"example": "1.0.0"
},
"containerUrl": {
"type": "string"
},
"usage": {
"type": "object",
"properties": {
"ACTOR_COMPUTE_UNITS": {
"type": "integer",
"example": 0
},
"DATASET_READS": {
"type": "integer",
"example": 0
},
"DATASET_WRITES": {
"type": "integer",
"example": 0
},
"KEY_VALUE_STORE_READS": {
"type": "integer",
"example": 0
},
"KEY_VALUE_STORE_WRITES": {
"type": "integer",
"example": 1
},
"KEY_VALUE_STORE_LISTS": {
"type": "integer",
"example": 0
},
"REQUEST_QUEUE_READS": {
"type": "integer",
"example": 0
},
"REQUEST_QUEUE_WRITES": {
"type": "integer",
"example": 0
},
"DATA_TRANSFER_INTERNAL_GBYTES": {
"type": "integer",
"example": 0
},
"DATA_TRANSFER_EXTERNAL_GBYTES": {
"type": "integer",
"example": 0
},
"PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
"type": "integer",
"example": 0
},
"PROXY_SERPS": {
"type": "integer",
"example": 0
},
"PROXY_UNBLOCKER_UNITS": {
"type": "integer",
"example": 0
}
}
},
"usageTotalUsd": {
"type": "number",
"example": 0.00005
},
"usageUsd": {
"type": "object",
"properties": {
"ACTOR_COMPUTE_UNITS": {
"type": "integer",
"example": 0
},
"DATASET_READS": {
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},
"DATASET_WRITES": {
"type": "integer",
"example": 0
},
"KEY_VALUE_STORE_READS": {
"type": "integer",
"example": 0
},
"KEY_VALUE_STORE_WRITES": {
"type": "number",
"example": 0.00005
},
"KEY_VALUE_STORE_LISTS": {
"type": "integer",
"example": 0
},
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"type": "integer",
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},
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},
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"DATA_TRANSFER_EXTERNAL_GBYTES": {
"type": "integer",
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}