SSL certificate is a digital certificate, its main function is to encrypt the transmitted data and authenticate the identity of the server. Now the network is developing rapidly, and they are more concerned about information security, so now all mainstream browsers are included in https, and the transmission protocol from HTTP to https is the installation of SSL digital certificates, today with SSL shield to understand the purchase of SSL certificates.
1.Now most of the SSL digital certificates recognized by the market are issued by formal CA certification bodies, China started late in this regard, and most of the formal CA certification bodies that have received recognition are foreign enterprises, such as Sectigo, THAwte, DigiCert, etc. At present, most of the domestic SSL certificate service providers are the best foreign CA certification bodies, so it is best to choose a regular supplier when buying an SSL certificate, and the regular supplier supports 30 days of no reason to refund and after-sales service.
2.After choosing a service provider, we can choose the type and level of SSL certificate according to our needs. Different types of SSL certificates are suitable for different scenarios and scenarios, such as single-domain name certificates, multi-domain name certificates, and wildcard certificates. In addition, you also need to consider factors such as the application process and fees for SSL certificates, such as DV SSL certificates, OV SSL certificates, and EV SSL certificates, etc., which have different application conditions and fees.
3.After purchasing the certificate, you need to generate a CSR and submit it to the CA certification body, and then conduct a verification review. Generally, the DV SSL certificate only needs to verify the ownership of the domain name, while the OV SSL certificate and EV SSL certificate application not only need to verify the ownership of the domain name, but also need to provide some supporting documents, such as the registration information of the domain name, organization certification documents, etc. These documents are used to prove the authenticity of the subject of the application. Please ensure that you submit accurate and complete application information to ensure that your application is approved quickly.
4.For example, DV SSL certificates can be issued within two minutes, OV SSL certificates can be issued within 2-36 hours, and EV SSL certificates are the most stringent and generally take 1-2 working days to be issued. Once you have the certificate, you need to install it on your server. The installation process may vary depending on different server types. In general, you need to upload the certificate file and private key file to your server and specify their location in the server configuration. During the installation process, you will also need to confirm that the certificate is consistent with the server configuration to ensure security and proper operation.