> ## 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 

> Complete parameter reference: proxy pool, geo-targeting, JS rendering, headers, cookies, session IDs, POST requests, device types, and markdown output.

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

| Parameter | Default value | Description | Example |
| :- | :- | :- | :- |
| `proxy_pool` | `premium` | `standard` handles simple pages; <br />`Premium` resolves complex anti-bot measures and used for Target Templates | `standard` |
| `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` |
| `target` | `null` | Necessary for specific [**target templates**](https://help.decodo.com/docs/web-scraping-api-targets#/) | `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)<br />`png` value enables screenshot response. [Read more.](https://help.decodo.com/docs/web-scraping-api-screenshot-response) | `html` |
| `geo` | auto-randomized | The geographical location on which the result depends. [**Read more**](https://help.decodo.com/docs/web-scraping-api-localisation). | `United States` |
| `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/<IP_ADDRESS> 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) | `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/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) | `true` |
| `xhr` | `false` | Retrieves a list of XHR and fetch requests.[Read more.](https://help.decodo.com/docs/web-scraping-api-fetch-and-xhr) | `true` |

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