# Semrush Sensor Winners & Losers

Returns the domains with the largest ranking movement for one database, category, and day, including each domain's 7-day movement series and the category averages.

- **Documentation:** [https://scrappa.co/docs/semrush-api/semrush_sensor_movers](https://scrappa.co/docs/semrush-api/semrush_sensor_movers)
- **API group:** Semrush API
- **Endpoint:** `GET https://scrappa.co/api/semrush/sensor/movers`

## Authentication

Send your Scrappa API key in the `X-API-KEY` request header. Paid endpoints also support accountless x402 payments when called without an API key.

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `db` | string | Yes | Sensor database, e.g. US, UK, DE, or a MOBILE-* variant such as MOBILE-US. See the facets endpoint for the full list. |
| `category` | integer | Yes | Sensor category id (1-25). See the facets endpoint for the full list. |
| `date` | string | Yes | Day in YYYY-MM-DD format (rolling 31-day window). |

## Example request

```bash
#!/bin/bash

curl -X GET \
    -H "x-api-key: YOUR_API_KEY_HERE" \
    "https://scrappa.co/api/semrush/sensor/movers?db=US&category=1&date=2026-07-28"
```

## Example response

```json
{
    "search_parameters": {
        "engine": "semrush_sensor_movers",
        "db": "US",
        "category": 1,
        "date": "2026-07-28"
    },
    "date": "2026-07-28",
    "db": "US",
    "category": 1,
    "domains": [
        {
            "domain": "example.com",
            "diff": 12.4,
            "keywords": 18400,
            "new_keywords": 1200,
            "lost_keywords": 800
        }
    ],
    "categories": {
        "1": {
            "avg_drop": -2.1,
            "avg_raise": 2.4
        }
    }
}
```

## Errors

| Status | Error | Description |
| --- | --- | --- |
| 422 | Validation Error | A parameter failed validation. |
| 503 | Semrush Upstream Unavailable | Semrush could not be fetched through the configured proxy pool after the full attempt budget. Never charged. |

## More Scrappa resources

- [API documentation](https://scrappa.co/docs)
- [Full LLM-readable API reference](https://scrappa.co/llms-full.txt)
- [OpenAPI specification](https://scrappa.co/docs/api.json)
- [Pricing](https://scrappa.co/pricing)