# 計費說明

## 一、計費模式

**計費條件**：僅當單次請求返回 `200` 狀態碼時計費，其他狀態碼均不計費。

## 二、常見範例

範例1：成功解鎖網站

A. 當請求成功返回狀態碼 `200` 時，正常計費。

B. 即使**目標網站**本身存在`4xx`錯誤，我們仍會按狀態碼`200`計費。

範例2：請求失敗不計費

以下列舉情況均不計費，其他情況詳見狀態碼參照表：

* 請求超過併發限制，返回狀態碼 `429`（Too many requests），不計費
* 伺服器內部錯誤，返回狀態碼 `500`（Internal Server Error），不計費
* 伺服器逾時未回應，返回狀態碼 `504`（TimeoutError），不計費等

## 三、狀態碼對照表

<table><thead><tr><th width="100">狀態碼</th><th width="151">回應內容</th><th width="367">說明</th><th>是否扣費</th></tr></thead><tbody><tr><td>200</td><td>Success</td><td>請求成功</td><td>Yes</td></tr><tr><td>300</td><td>Not collected</td><td>未採集到有效數據</td><td>No</td></tr><tr><td>400</td><td>Bad Request</td><td>傳參錯誤</td><td>No</td></tr><tr><td>401</td><td>Unauthorized</td><td>認證權限失效，需檢查 token 有效性</td><td>No</td></tr><tr><td>429</td><td>429 Too many requests</td><td>短時間內發送過多請求</td><td>No</td></tr><tr><td>500</td><td>500 Internal Server Error</td><td>伺服器內部錯誤，伺服器收到無效回應</td><td>No</td></tr><tr><td>504</td><td>504 Timeout Error</td><td>伺服器未回應/中轉伺服器未回應</td><td>No</td></tr></tbody></table>


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