Lookalike Domains API

This endpoint returns lookalike domains detected for your organization. It supports two modes:

• Org-wide mode (when query is empty): return all lookalikes for your organization.

• Domain mode (when query is a domain): return lookalikes only if that domain exists in your org’s watchlist; otherwise, return an error with the list of allowed domains.

---

Endpoint

POST https://api.whiteintel.io/get_lookalike_domains.php
Content-Type: application/json

Auth: API key in the request body. Access: Enterprise (and higher) plans only.

Request Body

Field	Type	Required	Default	Constraints	Notes
apikey	string	✅	—	—	Your API key.
query	string	❌	""	domain or empty	If empty, returns all org results. If provided, must be in your org’s watchlist.
page	int	❌	1	>= 1	1-based page index.
limit	int	❌	500	1..5000	Page size.

Example Requests Org-wide (all lookalikes for your org):

curl -L 'https://api.whiteintel.io/get_lookalike_domains.php' \
  -H 'Content-Type: application/json' \
  --data '{"apikey":"<YOUR_KEY>","page":1,"limit":500}'
  

Single watchlist domain:

curl -L 'https://api.whiteintel.io/get_lookalike_domains.php' \
  -H 'Content-Type: application/json' \
  --data '{"apikey":"<YOUR_KEY>",query:"example.com","page":1,"limit":500}'
  

Behavior

1. Validate API key, plan eligibility, rate limit, and daily quota.

2. Normalize query (trim/lowercase).

3. If query is empty → return all lookalikes for the user’s organization_id (paginated).

4. If query is not empty:

   • Ensure the domain exists in the org’s watchlist (entry_type = 'domain').

   • If it doesn’t, return an error with allowed_queries (the user’s/org’s watchlist domains).

   • If it does, return lookalikes where original_entry = query (exact match; no LIKE).

Success Response

{
    "success": true,
    "remaining_daily_calls": 472,
    "results": [{
        "data_type": "lookalike",
        "original_entry": "example.com",
        "detected_domain": "examp1e.com",
        "detected_domain_ip": ["203.0.113.10", "2001:db8::10"],
        "detected_domain_ns": ["ns1.provider.net", "ns2.provider.net"],
        "whois_json": {
            "domain_name": "examp1e.com",
            "registrar": "Registrar LLC",
            "creation_date": "2023-06-01T00:00:00Z",
            "creation_date_iso": "2023-06-01T00:00:00Z"
        },
        "creation_date_iso": "2023-06-01 00:00:00",
        "discovered_at": "2025-09-06 11:28:53"
    }]
}

Validation Failure (200 with guidance)

{
  "success": false,
  "error": "Query must be empty or one of your watchlist domains.",
  "allowed_queries": ["example.com", "acme.org", "brand.io"]
}