SSL证书是网络信息安全的重要组成部分,现如今,网站部署SSL证书实现https加密访问已是常态。通常我们在申请SSL证书时,需要绑定网站域名,随着业务增长,网站可能拥有不止一个域名,这时往往需增加SSL证书绑定的域名。
根据网站保护域名数量不同,我们在申请SSL证书时,可选择单域名SSL证书、多域名SSL证书、通配符证书(又名泛域名SSL证书)。不同类型的SSL证书增加证书绑定的域名方法不同,如果购买的是单域名证书,后续要是增加新的域名,则需要重新购买新证书。
如果先前购买的多域名SSL证书,一般会提供有可追加附加域名的额度,比如DigiCert多域名证书可保护250个域名,要是超过了可追加附加域名的额度,也可重新购买新的证书。
如果购买的通配符SSL证书,增加的域名与证书绑定的域名在同一级别的话(即为主域名下的子域名),则无需增加该域名,直接使用原有证书即可。例如:证书绑定的域名为*.idcspy.com,此次想要绑定test.idcspy.com,则无需重新添加,可直接用已有证书来保护该子域名。
要是增加的域名与证书绑定的域名不在同一级别,则需要重新购买证书。比如证书绑定的域名为*.idcspy.com,此次想要绑定ab.test.idcspy.com,需重新购买证书来绑定该域名。
相关阅读:《热门SSL证书品牌推荐》
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