Unif API Docs

Find keywords two domains both rank for

Return the keywords for which two domains both rank, with each domain's position and URL, to find shared keywords or keyword gaps between competitors.

Pricing — $$ · min $0.05

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

POST
/seo/competitors/domain-intersection

Authorization

bearerAuth
AuthorizationBearer <token>

UnifAPI API key. Provider credentials are managed by UnifAPI.

In: header

Header Parameters

Unifapi-Version?string

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.

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

application/json

curl -X POST "https://example.com/seo/competitors/domain-intersection" \  -H "Content-Type: application/json" \  -d '{    "target1": "string",    "target2": "string"  }'
{  "request_id": "string",  "data": {    "target1": "string",    "target2": "string",    "location": "string",    "language": "string",    "view": "summary",    "total_count": 0,    "results": [      {        "keyword": "string",        "search_volume": 0,        "cpc": 0,        "competition": 0,        "competition_level": "string",        "keyword_difficulty": 0,        "search_intent": "string",        "search_intent_alternatives": [          "string"        ],        "low_top_of_page_bid": 0,        "high_top_of_page_bid": 0,        "words_count": 0,        "detected_language": "string",        "search_volume_trend": {          "monthly": 0,          "quarterly": 0,          "yearly": 0        },        "serp_item_types": [          "string"        ],        "serp_results_count": 0,        "monthly_searches": [          {            "year": 0,            "month": 0,            "search_volume": 0          }        ],        "last_updated_at": "string",        "first_domain": {          "rank_group": 0,          "rank_absolute": 0,          "position": "string",          "domain": "string",          "title": "string",          "url": "string",          "etv": 0,          "estimated_paid_traffic_cost": 0        },        "second_domain": {          "rank_group": 0,          "rank_absolute": 0,          "position": "string",          "domain": "string",          "title": "string",          "url": "string",          "etv": 0,          "estimated_paid_traffic_cost": 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    }  }}