Fraudulent website signalPrivate preview

The fraudulent website signal evaluates whether a connected accounts website is deceptive or violates policy. This includes websites for accounts that dont exist yet on Stripe.

Request an evaluation

Use the Account Evaluations API to trigger a fraudulent website evaluation on demand. You can evaluate an existing connected account or provide account data directly.

Evaluate an existing account

You can evaluate a website for an existing account.

curl -X POST https://api.stripe.com/v2/signals/account_evaluations \
  -H "Authorization: Bearer sk_test_wU7nrJCZspk1NPDxiQgAF05q" \
  -H "Stripe-Version: 2026-07-29.preview" \
  --json '{
    "account_details": {
        "account": 
"{{CONNECTED_ACCOUNT_ID}}"
    },
    "requested_signals": [
        "fraudulent_website"
    ]
  }'

Evaluate without an existing account

You can evaluate a website before creating a connected account by providing account_details.data with the business URL. The business_url field is the only required field for an entity-less evaluation. You can provide other fields to improve the accuracy of the assessment.

curl -X POST https://api.stripe.com/v2/signals/account_evaluations \
  -H "Authorization: Bearer sk_test_wU7nrJCZspk1NPDxiQgAF05q" \
  -H "Stripe-Version: 2026-07-29.preview" \
  --json '{
    "account_details": {
        "data": {
            "defaults": {
                "profile": {
                    "business_url": "https://example.com"
                }
            }
        }
    },
    "requested_signals": [
        "fraudulent_website"
    ]
  }'

Webhook events

The evaluation is asynchronous. Listen for:

• v2.signals.account_signal.fraudulent_website_ready when you request a fraudulent website evaluation.
• v2.signals.account_evaluation.complete when you request multiple signals and want one notification after all results are ready.

These are thin events: data is always {}. Use related_object.id to fetch the related signal or evaluation.

curl https://api.stripe.com/v2/signals/account_signals/acctsig_61UDQe5wRb3w1JgCP16UDQb80xSQmM6vEqeUAlKES \
  -H "Authorization: Bearer sk_test_wU7nrJCZspk1NPDxiQgAF05q" \
  -H "Stripe-Version: 2026-07-29.preview"

{
  "id": "acctsig_61UDQe5wRb3w1JgCP16UDQb80xSQmM6vEqeUAlKES",
  "object": "v2.signals.account_signal",
  "type": "fraudulent_website",
  "account_details": {
    "account": "acct_1T42eHAZTJIN1MEb"
  },
  "account_evaluation": "acctevl_61UDQe5wRb3w1JgCP16UDQb80xSQmM6vEqeUAlKES",
  "created": "2026-02-26T00:43:28.000Z",
  "fraudulent_website": {
    "risk_level": "elevated",
    "details": "The website contains several indicators of potential fraud: product listings use vague descriptions inconsistent with industry norms, the contact page lacks a verifiable address, and images appear to be stock photos presented as original product photos."
  }
}

Alternatively, if you received a v2.signals.account_evaluation.complete event, use related_object.id to fetch the full evaluation, which includes the signal result in evaluated_signals:

curl https://api.stripe.com/v2/signals/account_evaluations/acctevl_61UDQe5wRb3w1JgCP16UDQb80xSQmM6vEqeUAlKES \
  -H "Authorization: Bearer sk_test_wU7nrJCZspk1NPDxiQgAF05q" \
  -H "Stripe-Version: 2026-07-29.preview"

{
  "id": "acctevl_61UDQe5wRb3w1JgCP16UDQb80xSQmM6vEqeUAlKES",
  "object": "v2.signals.account_evaluation",
  "account_details": {
    "account": "acct_1T42eHAZTJIN1MEb"
  },
  "requested_signals": ["fraudulent_website"],
  "pending_signals": [],
  "evaluated_signals": {
    "fraudulent_website": {
      "signal": "acctsig_61UDQe5wRb3w1JgCP16UDQb80xSQmM6vEqeUAlKES",
      "evaluated_at": "2026-02-26T00:43:28.000Z",
      "risk_level": "elevated",
      "details": "The website contains several indicators of potential fraud: product listings use vague descriptions inconsistent with industry norms, the contact page lacks a verifiable address, and images appear to be stock photos presented as original product photos."
    }
  }
}

The signal includes the following information:

Test in a sandbox

You can trigger a fraudulent_website evaluation in a sandbox and receive a deterministic result without waiting for a real website crawl. Use one of the reserved test URLs as the business_url in your evaluation request.

Test with an existing account

In a sandbox, update your connected accounts business URL to a reserved test URL, then trigger the evaluation.

curl -X POST https://api.stripe.com/v2/core/accounts/
{{CONNECTED_ACCOUNT_ID}} \
  -H "Authorization: Bearer sk_test_wU7nrJCZspk1NPDxiQgAF05q" \
  -H "Stripe-Version: 2026-07-29.preview" \
  --json '{
    "defaults": {
        "profile": {
            "business_url": "https://fraudulent-website.test/elevated"
        }
    }
  }'

curl -X POST https://api.stripe.com/v2/signals/account_evaluations \
  -H "Authorization: Bearer sk_test_wU7nrJCZspk1NPDxiQgAF05q" \
  -H "Stripe-Version: 2026-07-29.preview" \
  --json '{
    "account_details": {
        "account": 
"{{CONNECTED_ACCOUNT_ID}}"
    },
    "requested_signals": [
        "fraudulent_website"
    ]
  }'

Test with an entity-less evaluation

Pass a reserved test URL as business_url in account_details.data:

curl -X POST https://api.stripe.com/v2/signals/account_evaluations \
  -H "Authorization: Bearer sk_test_wU7nrJCZspk1NPDxiQgAF05q" \
  -H "Stripe-Version: 2026-07-29.preview" \
  --json '{
    "account_details": {
        "data": {
            "defaults": {
                "profile": {
                    "business_url": "https://fraudulent-website.test/highest"
                }
            }
        }
    },
    "requested_signals": [
        "fraudulent_website"
    ]
  }'

Take action on connected accounts

You can respond to the fraudulent website signals that you receive for a connected account using the Radar tools. See the list of available actions.