The digital certificate contains specific pieces of information about the identity of the certificate owner and about the certificate authority, including

数字证书包含关于证书所有者的身份以及认证机构的信息，包括

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Certificate: a public key with some information attached about the identity of its owner and, optionally, the signatures of third parties confirming this identity.

证书：附带了某些有关其所有者身份信息的公钥；可选地，该信息为确认此身份的第三方的签名。

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Workaround: There is no workaround if the site's certificate is expired; contact the site owner and request that they update the certificate.

处理：如果站点的证书已过期，则没有处理方法。联系站点的所有者，并要求他们更新证书。

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Depending on your browser, websites with SSL certificates will have a padlock icon or your address bar will change color and users can click on the padlock icon to verify the identity of the certificate owner.

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Under current law, insurance companies must issue a paper and electronic certificate when agreeing a policy with a vehicle owner.

BBC: Tax disc

According to this article a Louisiana tax lien certificate will give you a nice rate of interest if the owner pays the delinquent real estate tax.

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