专业SSL证书服务

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常见问题

关于SSL证书的常见问题解答

什么是SSL证书？
SSL证书是一种数字证书，用于在客户端和服务器之间建立加密连接，保护数据传输的安全。它通过验证网站身份并加密传输数据，防止敏感信息被窃取或篡改。
DV、OV和EV证书有什么区别？
DV（域名验证）证书仅验证域名所有权，签发速度快；OV（组织验证）证书验证企业真实性，显示企业名称；EV（扩展验证）证书提供最高级别的验证，在浏览器地址栏显示绿色企业名称，建立最高信任级别。
SSL证书的有效期是多久？
根据CA/Browser Forum的规定，自2020年9月1日起，新颁发的SSL证书有效期最长为398天（约13个月）。证书到期前需要及时续期，确保持续的网站安全保护。
通配符证书有什么优势？
通配符证书可以保护一个域名及其所有子域名，例如*.example.com可以保护www.example.com、mail.example.com、shop.example.com等。这比购买多个单域名证书更经济高效，特别适合拥有多个子域名的网站。

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基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2025-12-06 18:24:01 HTTP/2.0 GET : https://new.ysssl.com/ssl.html
  2. 运行时间 : 0.077960s [ 吞吐率：12.83req/s ] 内存消耗：5,168.24kb 文件加载：147
  3. 缓存信息 : 0 reads,0 writes
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  1. CONNECT:[ UseTime:0.000592s ] mysql:host=127.0.0.1;port=3306;dbname=new_ysssl;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `products` [ RunTime:0.000996s ]
  3. SELECT * FROM `products` WHERE `status` = 1 ORDER BY `sort_order` ASC [ RunTime:0.000852s ]
0.085306s