1, SSL certificate interpretation
SSL certificate is a kind of digital certificate (digital certificate includes SSL certificate, client certificate, code signing certificate, etc. ) because it is also called a server SSL certificate when configured on the server. SSL certificate is a digital certificate issued by a trusted digital certificate authority CA (such as Gworg CA) after verifying the identity of the server.
2. SSL certificate function
(1) website realizes encrypted transmission.
When a user accesses a website through the http protocol, the transmission between the browser and the server is plaintext, which means that confidential information such as passwords, account numbers and transaction records filled in by the user are plaintext, which may be leaked, stolen, tampered with and utilized by hackers at any time.
What does SSL certificate do? After the SSL certificate is installed on the website, using the https encryption protocol to access the website can activate the SSL encryption channel (SSL protocol) between the client browser and the website server, realize high-intensity two-way encrypted transmission, and prevent the transmitted data from being leaked or tampered with.
(2) Authenticate the true identity of the server
What does SSL certificate do? With the proliferation of phishing websites, how can users identify whether a website is a phishing website or a safe website? After the website deploys the global trusted SSL certificate, the browser has built-in security mechanism to check the certificate status in real time, and display the website authentication information to users through the browser, so that users can easily identify the real identity of the website and prevent phishing websites from counterfeiting.
3. The benefits of installing SSL certificates
(1) Ensure the security of users' private information.
SSL certificate enables the website to realize encrypted transmission, which can well prevent users' private information such as user name, password, transaction record and residence information from being stolen and tampered with. For example, installing an SSL certificate on an e-commerce website can effectively protect the security of the user name and password submitted when you log in to the e-commerce website to pay.
(2) Help users identify phishing websites.
SSL certificate can authenticate the real identity of the server and effectively distinguish phishing websites from official websites. After the website deploys the global trusted SSL certificate, the browser has built-in security mechanism to check the certificate status in real time, and display the website authentication information to users through the browser, so that users can easily identify the real identity of the website and prevent phishing websites from counterfeiting.
(3) It is beneficial to SEO optimization of the website.
Because the website with SSL certificate is more reliable and safer than the website without SSL certificate, it can effectively protect the interests of users from infringement. Therefore, from the perspective of ensuring the security of users' information, search engines such as Google and Baidu are vigorously advocating the deployment of SSL certificates on websites to realize https encrypted access. Websites with SSL certificates will also get preferential treatment in search, display and ranking. Reference:
1, Baidu included the HTTPS website and gave it priority.
2. In order to protect users' privacy, Google gives priority to indexing HTTPS pages.
(4) Enhance the brand image and credibility of the company.
The website deploys SSL certificate to make your website different from other websites. Websites with SSL certificates will display the https green security lock in the browser address bar, and if EV SSL certificates are deployed, they will also display the green address bar and company name. It can tell users that they are visiting a safe and reliable website, and they can operate and trade with confidence, effectively enhancing the brand information and credibility of the company.
4. How do websites obtain SSL certificates?
Secure and credible SSL certificates need to be applied to CA (Certificate Authority and Issue Center), and will be issued only after strict examination. Please refer to: SSL certificate application, how to apply for SSL certificate.