Requirements and precautions for applying for multi domain SSL certificate

If you have multiple sites to deploy SSL certificate , And the domain names of these websites are not related , So many domain names SSL Certificates are ideal . Let's talk about applying for multiple domain names in detail SSL Certificate requirements and precautions .

Multiple domains SSL Certificates can protect 2-250 Different domain names , Transfer information to the website with https Mode encryption , Prevent information from being monitored 、 Intercept and tamper with , At the same time, it helps to improve the ranking weight and collection in Baidu, Google and other search engines . Any regular website can apply for multiple domain names SSL certificate , Basically no requirements .

Although applying for multiple domain names SSL There are no requirements for certificates , However, we should pay attention to the following points ：

1、 Choose a regular and trusted CA Institutions

Only formal and credible CA Institutions （ Such as Sectigo、Digicert etc. ） Issued by the SSL Certificates will be trusted by major browsers , And can be compatible with various operating platforms 、PC End 、 Mobile terminals, etc .

2、 Select the appropriate verification method

Multiple domains SSL Certificates support three methods , Domain name verification DV、 Organization validation OV And extended validation EV. Individuals and small businesses are better suited to DV Multiple domains SSL certificate , Because such a certificate is cheaper , It's also easier to install .OV Multiple domains SSL Certificate security is higher , So it applies to some corporate websites . Among these three certificates ,EV Multiple domains SSL Certificates are the most secure , Therefore, it is suitable for websites with higher security requirements , For example, banking and finance 、 Large e-commerce websites .

3、 Whether the domain name type matches

If you find that all domain names are different secondary domain names under the same primary domain name when you apply , You do not need to match the multi domain name certificate . under these circumstances , Consider wildcard certificates , Because this infinite subfield has high cost performance , So it's more cost-effective .

Multiple domains SSL Certificates are a simple and powerful tool , It can protect all websites you create on various domains and sub domains .