> ## Documentation Index
> Fetch the complete documentation index at: https://docs.categorization.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Website Categorization

> This endpoint allows for categorizing websites based on NAICS (North American Industry Classification System) codes or a taxonomy classification.

### Header

<ParamField header="x-api-key" type="string" required={true}>
  This parameter specifies the private key you'll need for Categorization.dev access.
</ParamField>

### Parameters

<ParamField query="query" type="string" required={true} placeholder="https://airbus.com">
  A website url with `http://` or `https://` protocol.
</ParamField>

<ParamField query="classification" type="string" required={true} placeholder="naics">
  The classification parameter specifies the type of categorization to be used. It can be either `taxonomy_v3` or `naics`.
</ParamField>

### Supported classifications

* `taxonomy_v3`: A hierarchical taxonomy that categorizes websites into a set of categories and subcategories : [with 703 categories](/api-reference/website_taxonomy_v3)
* `naics`: A classification system used by the United States, Canada, and Mexico to classify businesses by industry sector : [census.gov naics](https://www.census.gov/naics/)

<ResponseExample>
  ```json Taxonomy v3 Response Example theme={null}
  {
      "taxonomy_v3": [
          {
              "value": "Business and Finance > Industries > Aviation Industry",
              "confidence": 0.9
          },
          {
              "value": "Science and Technology > Aerospace",
              "confidence": 0.9
          },
          {
              "value": "Automotive > Auto Type > Concept Cars",
              "confidence": 0.8
          },
          {
              "value": "Business and Finance > Industries > Defense Industry",
              "confidence": 0.8
          },
          {
              "value": "Business and Finance > Industries > Space Industry",
              "confidence": 0.8
          },
          {
              "value": "Automotive > Auto Technology > Auto Safety Technologies",
              "confidence": 0.7
          },
          {
              "value": "Automotive > Auto Technology > Auto Infotainment Technologies",
              "confidence": 0.7
          },
          {
              "value": "Automotive > Auto Technology > Auto Navigation Systems",
              "confidence": 0.7
          },
          {
              "value": "Automotive > Auto Type > Green Vehicles",
              "confidence": 0.7
          },
          {
              "value": "Business and Finance > Industries > Technology Industry",
              "confidence": 0.7
          },
          {
              "value": "Business and Finance > Industries > Telecommunications Industry",
              "confidence": 0.7
          },
          {
              "value": "Automotive > Auto Type > Driverless Cars",
              "confidence": 0.6
          },
          {
              "value": "Science and Technology > Robotics",
              "confidence": 0.6
          },
          {
              "value": "Science and Technology > Artificial Intelligence",
              "confidence": 0.6
          },
          {
              "value": "Science and Technology > Quantum Computing",
              "confidence": 0.5
          }
      ]
  }
  ```

  ```json NAICS Response Example theme={null}
  {
      "naics": [
          {
              "title": "Aircraft Manufacturing",
              "value": "336411",
              "confidence": 0.95
          }
      ]
  }
  ```
</ResponseExample>