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\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t![\"hosting.com](\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251227070008.webp\" "\\"\\"")
\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t<\/div>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\tDomain Validation Certificate<\/h3>\n\n\n\n
Domain Name Validation (DV) certificates are basic-level SSL certificates, often simply referred to as DV certificates. The certificate issuing authority only verifies the applicant\u2019s ownership of the specific domain name. The verification process is quick and can sometimes be automated, with the certificate being issued within minutes. Due to their low cost, DV certificates are very suitable for personal websites, blogs, or testing environments. However, no organizational information is displayed in the certificate.<\/p>\n\n\n\n
Organizational validation type certificate<\/h3>\n\n\n\n
Organizational validation certificates offer a higher level of verification and are known as OV (Organization Validation) certificates. In addition to verifying the ownership of the domain name, the CA (Certificate Authority) also examines the authenticity and legitimacy of the applying organization, for example by checking the company\u2019s registration information with the relevant authorities. As a result, OV certificates include the verified name of the company. These certificates provide users with a greater sense of trust and are commonly used by corporate websites, e-commerce platforms, and any other systems that need to establish initial trust with their users.<\/p>\n\n\n\n
Extended Validation Certificate<\/h3>\n\n\n\n
Extended Validation (EV) certificates represent the strictest and highest level of security certification. Applying for an EV certificate requires the most comprehensive verification of an organization\u2019s identity. Websites that use EV certificates will display a security lock icon in the address bar of popular browsers, and in many cases, the verified name of the company will also be displayed directly, providing users with the highest level of assurance regarding the website\u2019s authenticity. Financial institutions, government agencies, and high-value transaction platforms often use this type of certificate.<\/p>\n\n\n\n
Choose according to the number of domain names: single domain, multiple domains and wildcard certificates<\/h3>\n\n\n\n
In addition to the verification level, it is also important to consider the range of domain names covered by the certificate. A single-domain certificate only protects one fully qualified domain name. A multi-domain certificate allows you to add and protect multiple different domain names within the same certificate. A wildcard certificate, on the other hand, can protect a primary domain name and all its subdomains at the same level; for example, a wildcard certificate issued for\u2026 Obtaining and enabling an SSL certificate for a website is not a complicated process, but it is necessary to follow the correct steps to ensure security and effectiveness.<\/p>\n\n\n\n The first step in the deployment process is to generate a Certificate Signing Request (CSR) file on your web server. This is typically done through the server\u2019s administration panel (such as cPanel) or using command-line tools. During the CSR generation process, the system creates a pair of keys: a private key and a public key. The private key must be kept securely on the server and must not be disclosed under any circumstances; the CSR file, on the other hand, contains your public key as well as information about the organization to which you are submitting the certificate request.<\/p>\n\n\n\n Submit the generated CSR (Certificate Signing Request) to the certificate authority of your choice. Then, complete the corresponding verification process based on the type of certificate you are applying for. For DV (Domain Validation) certificates, you usually only need to prove domain control by receiving a verification email sent to a specified email address or by adding specific DNS resolution records. For OV (Organizational Validation) and EV (Extended Validation) certificates, you will need to provide legal documents and other materials as required by the CA (Certificate Authority), and the verification process takes longer.<\/p>\n\n\n\n After the CA verification is successful, you will be issued an SSL certificate file. You need to upload this certificate file, as well as any intermediate certificate chain files (if applicable), to your web server and bind them to the private key that was generated earlier. This process can be done through the server management interface. Once the installation is complete, make sure to configure your server to forcibly redirect all traffic accessing the website via the HTTP protocol to HTTPS. This practice is known as \u201cenforcing HTTPS\u201d.<\/p>\n\n\n After installing the certificate, use an online SSL validation tool to conduct a thorough check to ensure that the certificate has been installed correctly, without any errors, and that it supports modern encryption protocols. Finally, be sure to record the certificate\u2019s expiration date and set up a reminder to renew it in time before it expires, in order to prevent security warnings when visitors try to access your website due to an expired certificate.<\/p>\n\n\n\n Proper configuration of SSL\/TLS is a necessary condition for ensuring its security benefits; at the same time, optimizations can minimize its impact on website performance.<\/p>\n\n\n\n After deploying the SSL certificate, you should ensure that the server has HTTP\/2 enabled. HTTP\/2 is the next generation of the HTTP protocol and supports features such as multiplexing and header compression, which can significantly improve the loading speed of HTTPS websites. Modern server software typically allows HTTP\/2 to be easily enabled once the SSL module is activated.<\/p>\n\n\n\n The configuration of the server\u2019s encryption suite determines the strength of encrypted communications. It is recommended to use encryption suites that provide forward secrecy (i.e., ensure that encrypted messages cannot be decrypted by eavesdroppers even if the encryption keys are compromised). Older, insecure protocols and weak encryption algorithms should be disabled. For example, SSL 2.0\/3.0 should be disabled in favor of TLS 1.2 or 1.3, and strong encryption algorithms such as AES-GCM should be used.<\/p>\n\n\n\n Online Certificate Status Protocol (OCSP) stapling is an optimization technique that addresses the issue of delays associated with checking the revocation status of certificates. Traditional OCSP checks require the browser to initiate a separate request to the CA\u2019s OCSP server, which can increase the latency. OCSP stapling, on the other hand, allows the web server to send the certificate status information, along with the CA\u2019s signature, to the browser during the TLS handshake. This eliminates the need for the browser to perform a separate query, thereby protecting user privacy and improving the speed of the handshake process.<\/p>\n\n\n\n The SSL\/TLS handshake process involves asymmetric encryption calculations, which can be time-consuming. By properly configuring the session reactivation mechanism, the same user can reuse the previously established encryption session parameters when accessing the server again in a short period of time, thereby avoiding the need to perform the entire handshake process. This reduces latency and the computational load on the server\u2019s CPU.<\/p>\n\n\n\n SSL certificates have become an indispensable part of the modern internet infrastructure. They are not only crucial for encrypting data transmissions and protecting users\u2019 private information but also serve as the foundation for establishing the credibility of websites, enhancing the user experience, and meeting compliance requirements. Every step in the process \u2013 from understanding the principles of encryption to selecting the appropriate type of certificate based on specific needs, to deploying and optimizing the certificate according to standard procedures \u2013 is of utmost importance. Website operators should place great emphasis on the deployment and maintenance of SSL certificates, considering it a top priority in ensuring website security, in order to provide users with a safe and trustworthy online environment.<\/p>\n\n\n\n Theoretically, the SSL\/TLS handshake process can cause some additional network latency, as it is necessary to establish an encrypted connection before data transmission begins. However, with the adoption of modern optimization techniques such as HTTP\/2, TLS 1.3, and OCSP stapling, this impact has been minimized. In fact, due to the performance advantages of HTTP\/2, the loading speed of HTTPS websites can even be faster than that of unencrypted HTTP websites.<\/p>\n\n\n\n \u514d\u8d39\u8bc1\u4e66\u901a\u5e38\u6307Let\u2018s Encrypt\u7b49\u673a\u6784\u9881\u53d1\u7684DV\u8bc1\u4e66\uff0c\u5176\u52a0\u5bc6\u5f3a\u5ea6\u4e0e\u57fa\u7840\u4ed8\u8d39DV\u8bc1\u4e66\u76f8\u5f53\uff0c\u80fd\u5b9e\u73b0\u57fa\u672c\u7684HTTPS\u52a0\u5bc6\u3002\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u514d\u8d39\u8bc1\u4e66\u6709\u6548\u671f\u8f83\u77ed\uff0c\u901a\u5e38\u4e3a90\u5929\uff0c\u9700\u8981\u9891\u7e41\u81ea\u52a8\u7eed\u671f\uff1b\u800c\u4ed8\u8d39\u8bc1\u4e66\u6709\u6548\u671f\u66f4\u957f\uff0c\u5e76\u63d0\u4f9b\u6280\u672f\u652f\u6301\u3001\u4ef7\u503c\u66f4\u9ad8\u7684\u4fdd\u4fee\u8d54\u507f\u3002\u5bf9\u4e8e\u9700\u8981OV\u6216EV\u7ea7\u522b\u9a8c\u8bc1\u3001\u901a\u914d\u7b26\u6216\u591a\u57df\u540d\u652f\u6301\u7b49\u9ad8\u7ea7\u529f\u80fd\u7684\u7528\u6237\uff0c\u5219\u9700\u8981\u9009\u62e9\u4ed8\u8d39\u8bc1\u4e66\u3002<\/p>\n\n\n\n After deploying an SSL certificate on the server and enabling HTTPS, it is necessary to set up a 301 permanent redirect to automatically direct all traffic accessing the site via the HTTP protocol to the corresponding HTTPS address. This ensures that users can still access the encrypted website securely, even if they enter an old link or if search engines have indexed that old link. Additionally, the addresses of internal links, images, scripts, and other resources on the website should also be updated to HTTPS to avoid \u201cmixed content\u201d warnings.<\/p>\n\n\n\n First, check the browser address bar: A valid HTTPS website should display a lock icon. Clicking on the lock icon allows you to view the certificate details to confirm that the certificate is issued for the correct domain name, by a trusted authority, and is still within its validity period. Second, be cautious of any security warnings displayed by the browser, such as \u201cUnsecure,\u201d \u201cCertificate invalid,\u201d or \u201cThe connection is not private,\u201d as these indicate potential issues with the certificate. Finally, you can use third-party online SSL verification tools for a more in-depth analysis.<\/p>","protected":false},"excerpt":{"rendered":" This article systematically explains the basic concepts of SSL certificates, the core encryption principles, and their relationship with TLS and HTTPS. It provides detailed information on the main types of certificates, including domain name validation, organization validation, and extended validation, as well as the differences between single-domain, multi-domain, and wildcard certificates. Finally, it outlines the complete deployment process, step by step, from generating a CSR (Certificate Signing Request) to installing and testing the certificate, offering clear guidance for enabling HTTPS encryption on websites.<\/p>","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"knowledge_category":[277],"class_list":["post-12365832","knowledge_post","type-knowledge_post","status-publish","hentry","knowledge_category-ssl-certificate"],"acf":{"site_seo_keywords":"SSL\u8bc1\u4e66,HTTPS,\u7f51\u7ad9\u5b89\u5168,\u8bc1\u4e66\u7533\u8bf7\u6d41\u7a0b,SSL\u8bc1\u4e66\u7c7b\u578b,SSL\u8bc1\u4e66\u4f5c\u7528,\u901a\u914d\u7b26\u8bc1\u4e66,\u6570\u5b57\u8bc1\u4e66"},"_links":{"self":[{"href":"https:\/\/www.likacloud.com\/en\/wp-json\/wp\/v2\/knowledge_posts\/12365832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.likacloud.com\/en\/wp-json\/wp\/v2\/knowledge_posts"}],"about":[{"href":"https:\/\/www.likacloud.com\/en\/wp-json\/wp\/v2\/types\/knowledge_post"}],"author":[{"embeddable":true,"href":"https:\/\/www.likacloud.com\/en\/wp-json\/wp\/v2\/users\/7"}],"version-history":[{"count":0,"href":"https:\/\/www.likacloud.com\/en\/wp-json\/wp\/v2\/knowledge_posts\/12365832\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.likacloud.com\/en\/wp-json\/wp\/v2\/media?parent=12365832"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.likacloud.com\/en\/wp-json\/wp\/v2\/tags?post=12365832"},{"taxonomy":"knowledge_category","embeddable":true,"href":"https:\/\/www.likacloud.com\/en\/wp-json\/wp\/v2\/knowledge_category?post=12365832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}*.example.com<\/code> Wildcard certificates can provide protection for multiple entities or resources simultaneously. www.example.com<\/code>\u3001mail.example.com<\/code>\u3001shop.example.com<\/code> This, etc., is very flexible and efficient for organizations that use multiple domain name services.<\/p>\n\n\n\nThe complete deployment process for an SSL certificate<\/h2>\n\n\n\n
Step 1: Generate a certificate signing request<\/h3>\n\n\n\n
Step 2: Submit the CSR and complete the verification<\/h3>\n\n\n\n
Step 3: Install and configure the certificate<\/h3>\n\n\n\n
![\"SSL](\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251227020448.webp\" "\\"\\"")
\n \n ![\"SSL](\"https:\/\/www.likacloud.com\/wp-content\/uploads\/2025\/12\/20251229052118.webp\" "\\"\\"")
\n <\/a>\n \n \n Visit UltaHost <\/a>\n <\/div>\n <\/div>\n\n \n\n\n\n\n\n\nStep 4: Testing and Maintenance<\/h3>\n\n\n\n
Server Configuration and Performance Optimization Suggestions<\/h2>\n\n\n\n
Enable the HTTP\/2 protocol.<\/h3>\n\n\n\n
Select a strong encryption suite.<\/h3>\n\n\n\n
Implementing OCSP Binding Technology<\/h3>\n\n\n\n
Properly setting up session recovery is essential for ensuring the smooth continuation of user interactions on a website or application.<\/h3>\n\n\n\n
summarize<\/h2>\n\n\n\n
FAQ Frequently Asked Questions<\/h2>\n\n\n\n
Does an SSL certificate affect the loading speed of a website?<\/h3>\n\n\n\n
What is the difference between a free SSL certificate and a paid one?<\/h3>\n\n\n\n
What should be done with the existing HTTP links after the website switches to HTTPS?<\/h3>\n\n\n\n
How to determine whether the SSL certificate of a website is secure and valid?<\/h3>\n\n\n\n