The free ssl certificate introduced in this article is a personal free version applied on Alibaba Cloud. (The speed of application is still very fast). A personal version of a certificate can only be used for a fixed domain name, and the validity period is 1 year. (e.g. www .test.com and sub.test.com two domain names, then you have to apply for two certificates)
1. Open Alibaba Cloud and log in, search for the SSL certificate, and then enter the purchase page. Select the personal free class version on the page, and then pay 0 yuan
2. The purchase is successful, fill in the domain name to be applied for and submit it for review. (Your own passed within 1 hour)
3. After the review is passed, click to download, and there is a detailed configuration tutorial on this page. (There are several types of nginx, Apache, etc., the configuration is still quite simple, very fast)