subtitle.au

SSL 证书

结果由实时握手读取

证书状态	剩余 80 天
颁发给	sydneycommercialrealestate.com.au
颁发者	YE1（Let's Encrypt）
生效时间	2026-09-30 01:14
到期时间	2026-12-29 01:14
是否覆盖当前域名	是
证书链	0 级（可能缺少中间证书）
签名算法	ecdsa-with-SHA384
序列号	057B220370C78588A5E7009CE20D5A832A44
自签名	否

证书覆盖的域名

共 90 个

*.analytics.stampingt.com.au *.app.sportsconnection.com.au *.apps.subtitle.au *.autodiscover.sportsconnection.com.au *.autodiscover.studebaker.com.au *.bkpxf8v5ay.subtitle.au *.cpanel.sportsconnection.com.au *.cpanel.studebaker.com.au *.cpcalendars.sportsconnection.com.au *.cpcalendars.studebaker.com.au *.cpcontacts.sportsconnection.com.au *.cpcontacts.studebaker.com.au *.dev.sportsconnection.com.au *.email.sydneys.com.au *.httpwww.sydneys.com.au *.ipv6.stampingt.com.au *.mail.sportsconnection.com.au *.mail.studebaker.com.au *.mail.sydneys.com.au *.mail5.sportsconnection.com.au *.ns.sydneys.com.au *.random.strategicbusiness.au *.random.subtitle.au *.random.swimmingpoolsupplies.com.au *.random.sydneycommercialrealestate.com.au *.regulation.subtitle.au *.smtp.sportsconnection.com.au *.sportsconnection.com.au *.stampingt.com.au *.startupbusinessloan.com.au *.stoneycreek.au *.storyplanning.com.au *.strategicbusiness.au *.studebaker.com.au *.subtitle.au *.surfspace.com.au *.swimmingpoolsupplies.com.au *.sydneychiropractor.com.au *.sydneycommercialrealestate.com.au *.sydneys.com.au *.systemadministration.com.au *.systemadministrator.com.au *.test.systemadministration.com.au *.usdtzmailserver.subtitle.au *.w.sydneys.com.au *.webdisk.sportsconnection.com.au *.webdisk.studebaker.com.au *.webmail.sportsconnection.com.au *.webmail.studebaker.com.au *.webmail.sydneys.com.au *.wildcard.sportsconnection.com.au *.wildcard.storyplanning.com.au *.wildcard.strategicbusiness.au *.wildcard.subtitle.au *.wildcard.surfspace.com.au *.wildcard.systemadministrator.com.au *.ww17.studebaker.com.au *.ww25.sportsconnection.com.au *.ww25.stampingt.com.au *.ww25.startupbusinessloan.com.au *.ww25.stoneycreek.au *.ww25.storyplanning.com.au *.ww25.strategicbusiness.au *.ww25.studebaker.com.au *.ww25.subtitle.au *.ww25.surfspace.com.au *.ww25.swimmingpoolsupplies.com.au *.ww25.sydneychiropractor.com.au *.ww25.sydneycommercialrealestate.com.au *.ww25.sydneys.com.au *.ww25.systemadministration.com.au *.ww25.systemadministrator.com.au *.ww38.stampingt.com.au *.ww38.surfspace.com.au *.ww38.sydneys.com.au sportsconnection.com.au stampingt.com.au startupbusinessloan.com.au stoneycreek.au storyplanning.com.au strategicbusiness.au studebaker.com.au subtitle.au surfspace.com.au swimmingpoolsupplies.com.au sydneychiropractor.com.au sydneycommercialrealestate.com.au sydneys.com.au systemadministration.com.au systemadministrator.com.au

带 * 的是通配符证书，只覆盖同一级子域名（如 *.example.com 不含 a.b.example.com）

常见问题

SSL 证书有什么用？

SSL / TLS 证书为浏览器与服务器之间的通信加密，同时证明「这个站点确实属于它声称的域名」。地址栏的锁形图标、以及 HTTPS 协议，都来自证书。

没有证书或证书无效时，浏览器会拦截并显示安全警告，用户无法正常访问，搜索引擎也会降低信任。

证书到期会怎样？

证书一旦过期，访客打开网站会看到「您的连接不是私密连接」这类整页警告，需要手动点「继续访问」才能进入，绝大多数用户会直接离开。

因此证书一般提前 30 天左右续期。本站结果页按剩余天数标色：绿色为 30 天以上，黄色为 7～30 天，红色为 7 天以内或已过期。

什么是证书链？为什么提示缺少中间证书？

证书由「根证书 → 中间证书 → 服务器证书」三级签发的链条构成。浏览器内置了根证书，但中间证书需要服务器一并下发。

如果服务器只下发了自己的证书、漏掉中间证书，部分浏览器（尤其是较旧的 Android 与部分移动端）会报「证书不受信任」。结果页的「证书链」若只有 1 级，通常就是这种情况。

一张证书能保护多个域名吗？

可以。证书通过 SAN（Subject Alternative Name）扩展同时列出多个域名，称为多域名证书；也可以使用通配符证书保护同一级的所有子域名。

通配符 *.example.com 只覆盖 a.example.com 这一级，不覆盖 a.b.example.com，也不覆盖根域名 example.com 本身，配置时需注意。

为什么查不到证书？

常见原因：该站点没有开启 HTTPS；只在 443 之外的端口提供 HTTPS；防火墙屏蔽了海外或本机访问；服务器未按 SNI 返回对应证书。

本站的检测是从服务器直接发起 TLS 握手读取证书，若目标只允许特定地区访问，结果可能与你在浏览器中看到的不一致。