> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/welcome/cn/global-accelerator/get-started/manage-ssl-certificates.md).

# 管理 SSL 证书

SSL（安全套接字层）证书在 Web 服务器和浏览器之间建立加密连接，确保所有在 Web 服务器和浏览器之间传输的数据保持私密。您可以上传从第三方证书服务提供商购买并颁发的 SSL 证书。您也可以部署和管理您的 SSL 证书。

<div align="left"><figure><img src="/files/3D20xtf7iUHv9h1tiP53" alt=""><figcaption><p>SSL 证书管理</p></figcaption></figure></div>

## 证书状态

* **可用证书**\
  可以正常使用的证书，其有效期超过 30 天。
* **即将过期证书**\
  即将在 30 天内过期的证书。
* **已过期证书**\
  已经过期的证书，您需要更新它们。


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# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.console.zenlayer.com/welcome/cn/global-accelerator/get-started/manage-ssl-certificates.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.