# 计费说明

### 一、计费模式

计费条件为：仅当单次请求返回 `200` 状态码时计费，其他状态码均不计费。

### 二、常见示例

**示例1：成功解锁网站**

A.当请求成功返回状态码 200 时，正常计费。

B.即使目标网站本身存在4xx错误，我们仍会按状态码200计费。

**示例2：请求失败不计费**

以下列举情况均不计费，其他情况详见状态码参照表：

请求超过并发限制，返回状态码 `429`（Too many requests），不计费

服务器内部错误，返回状态码 `500`（Internal Server Error），不计费

服务器超时未响应，返回状态码 `504`（TimeoutError），不计费等

### 三、状态码对照表

<table data-header-hidden><thead><tr><th width="100">状态码</th><th width="131">响应内容</th><th width="389">说明</th><th>是否扣费</th></tr></thead><tbody><tr><td><code>200</code></td><td>Sucess</td><td>请求成功</td><td>扣费</td></tr><tr><td><code>300</code></td><td>Not collected</td><td>未采集到有效数据</td><td>不扣费</td></tr><tr><td><code>400</code></td><td>Bad Request</td><td>传参错误</td><td>不扣费</td></tr><tr><td><code>401</code></td><td>Unauthorized</td><td>认证权限失效，需检查 token 有效性</td><td>不扣费</td></tr><tr><td><code>429</code></td><td>429 Too many requests</td><td>短时间内发送过多请求</td><td>不扣费</td></tr><tr><td><code>500</code></td><td>500 Internal Server Error</td><td>服务器内部错误，服务器收到无效响应</td><td>不扣费</td></tr><tr><td><code>504</code></td><td>504 Timeout Error</td><td>服务器未响应/中转服务器未响应</td><td>不扣费</td></tr></tbody></table>


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