> For the complete documentation index, see [llms.txt](https://developers.oxylabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.oxylabs.io/products/cn/web-unblocker/response-codes.md).

# 响应码

了解网页解锁器最常见的响应码（200 到 550）。学习每个 HTTP 状态的含义以及如何排查错误。

<table><thead><tr><th width="129.59895833333331">代码</th><th>状态</th><th>描述</th></tr></thead><tbody><tr><td><code>200</code></td><td><code>正常</code></td><td>一切正常，请求成功。</td></tr><tr><td><code>400</code></td><td><code>多个错误消息</code></td><td>请求结构错误。可能是参数拼写错误或值无效。响应正文会包含更具体的错误信息。</td></tr><tr><td><code>401</code></td><td><p><code>未提供授权头</code> <code>无效的授权头</code></p><p><code>未找到客户端</code></p></td><td>缺少授权头，或者你的登录凭据不正确。</td></tr><tr><td><code>403</code></td><td><code>禁止访问</code></td><td>您的账户无权访问目标网站上的此资源。</td></tr><tr><td><code>404</code></td><td><code>未找到</code></td><td>目标网站服务器理解该请求，但拒绝授权。</td></tr><tr><td><code>408</code></td><td><code>超时</code></td><td>请求超时。</td></tr><tr><td><code>429</code></td><td><code>请求过多</code></td><td>您已超过速率限制。</td></tr><tr><td><code>500</code>, <code>502</code>, <code>503</code></td><td><code>内部服务器错误</code></td><td>我们这边遇到了一些问题。请稍后再试。我们可能已经注意到这些问题，但你也可以随时联系我们并反馈。</td></tr><tr><td><code>550</code></td><td><code>重试次数过多后失败</code></td><td>出了点问题，我们未能完成您提交的任务。您可以免费重试，因为我们不会对失败的任务收费。如果仍然不行，请与我们联系。</td></tr></tbody></table>


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# Agent Instructions
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