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

# Parameters Overview

> Web Scraping API Parameters

## Parameters supported by Web Scraping API solution

<Danger>
  Core and Advanced plans are no longer available for purchase. Please consider migrating to the all-in-one Web Scraper API; check out the guide [here](https://help.decodo.com/docs/web-scraping-api-migration-guide).
</Danger>

<Note>
  Supported parameters differ for Core and Advanced plan users.

  Note that supported parameters may vary slightly depending on the target template. [Read more](https://help.decodo.com/docs/web-scraping-api-targets-deprecated).
</Note>

| Parameter                 | Default value                                                   | Description                                                                                                                                                                                                                                                                      | Example                                                                                                                       | Core                                                                      |
| ------------------------- | --------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------- |
| `url` or `query`          | `null`                                                          | Mandatory. Some [**target templates**](https://help.decodo.com/docs/web-scraping-api-targets) support `query` parameter, otherwise `url` is required.                                                                                                                            | `https://ip.decodo.com`                                                                                                       | ✅ Only `url`                                                              |
| `target`                  | `null`                                                          | Necessary for specific [**target templates**](https://help.decodo.com/docs/web-scraping-api-targets-deprecated)                                                                                                                                                                  | `google_search`                                                                                                               |                                                                           |
| `headless`                | `null`<br />Some target templates force JS rendering by default | `html` value enables JavaScript rendering. [Read more. ](https://help.decodo.com/docs/web-scraping-api-javascript-rendering-deprecated)<br />`png` value enables screenshot response. [Read more.](https://help.decodo.com/docs/web-scraping-api-screenshot-response-deprecated) | `html`                                                                                                                        |                                                                           |
| `geo`                     | auto-randomized                                                 | The geographical location on which the result depends. [**Read more**](https://help.decodo.com/docs/web-scraping-api-localisation-deprecated).                                                                                                                                   | `United States`                                                                                                               | ✅ Supported geo locations: `US`, `CA`, `GB`, `DE`, `FR`, `NL`, `JP`, `RO` |
| `domain`                  | `com`                                                           | Specify top-level domain: **com**, **co.uk**, **fr**, etc.                                                                                                                                                                                                                       | `com`                                                                                                                         |                                                                           |
| `locale`                  | Matched with `domain` parameter                                 | This will change the search page web interface language (not the results). <br />Example: – en-US – en-GB                                                                                                                                                                        | `en-gb`                                                                                                                       |                                                                           |
| `headers`                 | `null`                                                          | Adds request headers to the target request.                                                                                                                                                                                                                                      | `User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36` |                                                                           |
| `cookies`                 | `null`                                                          | Client cookie. Allows users to open up pages as if they are logged in.                                                                                                                                                                                                           | `Cookie: sessionid=8e1f3b56-7abc-47e6-b2e2-1d273b0a1c4d; logged_in=true; locale=en-US`                                        |                                                                           |
| `force_cookies`           | `false`                                                         | By default, user-provided cookies are not forwarded to the target. <br />Set this parameter to `true` to override this behaviour.                                                                                                                                                | `true`                                                                                                                        |                                                                           |
| `force_headers`           | `false`                                                         | By default, user-provided headers are not forwarded to the target. <br />Set this parameter to `true` to override this behaviour.                                                                                                                                                | `true`                                                                                                                        |                                                                           |
| `device_type`             | `desktop`                                                       | Device type and browser. [Read more.](https://help.decodo.com/docs/web-scraping-api-device-types-deprecated)                                                                                                                                                                     | `desktop`                                                                                                                     |                                                                           |
| `parse`                   | `false`                                                         | For certain target templates dedicated parsers are available. <br />To retrieve structured data, set `parse` parameter to `true`. [Read more.](https://help.decodo.com/update/docs/web-scraping-api-parsing-deprecated)                                                          | `true`                                                                                                                        |                                                                           |
| `session_id`              | `null`                                                          | Session to re-use the same IP for multiple requests for up to 10 minutes                                                                                                                                                                                                         | `1234`                                                                                                                        |                                                                           |
| `http_method`             | `GET`                                                           | Used to make a `POST` request instead of `GET`.                                                                                                                                                                                                                                  | `POST`                                                                                                                        | ✅                                                                         |
| `payload`                 | `null`                                                          | Base64 encoded `POST` request body. Used when `http_method` is `POST`.                                                                                                                                                                                                           | `{foo: bar}`                                                                                                                  | ✅                                                                         |
| `successful_status_codes` | `null`                                                          | Define one or more `HTTP` response codes you consider successful and want to get the content for.                                                                                                                                                                                | `401`, `404`                                                                                                                  | ✅                                                                         |
| `markdown`                | `false`                                                         | Parses HTML output into Markdown. Results in less tokens when feeding results into LLM models. [Read more.](https://help.decodo.com/docs/web-scraping-api-markdown-response-deprecated)                                                                                          | `true`                                                                                                                        |                                                                           |
| `xhr`                     | `false`                                                         | Retrieves a list of XHR and fetch requests. [Read more.](https://help.decodo.com/docs/web-scraping-api-fetch-and-xhr-deprecated)                                                                                                                                                 | `true`                                                                                                                        |                                                                           |

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