How to purchase an SSL security certificate for a domain name (wildcard certificate /general domain name certificate)

If your domain name does not have a secure wildcard/general domain name certificate, we recommend directly purchase in Alibaba Cloud with price relatively cost-effective. You can also choose to buy in other channels. For the purchase of the certificate, we do not have mandatory requirements. The following is a demonstration of the "Alibaba Cloud website" purchase and "*.tuya.com" domain name: 1. Purchase the certificate Purchase link: https://common-buy.aliyun.com/?spm=5176.2020520163.0.0.101956a7JJ3tXf&commodityCode=cas Whether to purchase options, pay attention to the following three items: Domain name type: wildcard domain name (recommended) Certificate type: DV domain name level SSL Open certificate hosting service: No Other options can be selected as needed. Same as server, certificate needs continuous maintenance or it will be invalid. 2. Application for certificate issuance After purchasing SSL Certificate by payment, you need to apply for issuance Fill in relevant information: Certificate binding domain name: Must remember that the application is a general domain name certificate, so the domain name must start with *. Applicant's name: Domain name verification method: Manual DNS verification Applicant's mobile phone number: Applicant's email: Location: Fill in the location of the company CSR generation method: System automatic generation See the chart below. After filling in the details, click "Next" to copy the record type, host record and record value in the chart below, and then go to your "dns domain name management background" to configure relevant parameters (Where you maintain your domain name, go to the website to do the configuration; If you maintain the domain name on Alibaba Cloud, do the configuration on Alibaba Cloud; If you maintain the domain name on other cloud websites, do configuration on other websites)