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This article mainly introduces what is the difference between a single domain name ssl certificate and a ssl certificate. The sample code in the article is very detailed and has a certain reference value. Interested friends must read it!

At present, most websites need to install SSL certificate, it can be said that SSL certificate business is also very popular. But it should be noted that some novice webmasters will mistake the domain name certificate for a SSL certificate. A single domain name SSL certificate does exist, but the domain name certificate and the SSL certificate are still different. Let's take a look!

I. on SSL certificates

1. SSL certificate is a kind of digital certificate in accordance with SSL protocol, which has the functions of server authentication and data transmission encryption.

2. Generally speaking, the websites we visit start with "http". If a single domain name SSL certificate is installed, when you visit a Web site, it begins with "https", and there is a small lock symbol in front of the URL address.

3. Because the website has installed the SSL certificate, it can ensure that the information entered by the user on the browser and the information queried from the server are transmitted in encrypted form, and can not be illegally tampered with and embezzled, so the website data can be fully protected and the transmission is secure. at present, there are many large e-commerce websites, foreign trade websites and enterprise websites that have installed SSL certificates.

II. On domain name certificates

1. As long as you set up a website, the step after the domain name application is essential, because now you basically use the domain name to access the website. Although the SSL certificate appears in the form of domain name access, it has nothing to do with the domain name ssl certificate.

2. the so-called domain name certificate is the owner of domain name registration. it is expressed in the format of e-Cert, indicating the registered domain name, domain name registration time and expiration time.

3. At present, domain name certificates are in the form of electronic documents. It determines the ownership and duration of domain name ownership by domain name registrants, and has proof of domain name ownership. It is also a legally recognized certification document. Domain name certificates are used in the process of domain name transfer and website archiving.

4. Some domain name registrars at home and abroad now provide domain name ssl certificates, and some people may not pay much attention to or know about domain name certificates after registering domain names. They don't even know what a domain name certificate looks like, so the SSL certificate and the domain name certificate can be confused.

5. In general, SSL certificates and domain names sound the same, but there are differences between them. The main function of SSL certificate is to ensure the security of website data transmission. Domain name certificate is the embodiment of domain name owner's proof, they have no contact, but they all have their own functions.

Third, how to obtain multi-domain SSL certificate

1. The way to obtain free SSL certificates for multiple domain names is the same as usual. You need to apply for a certificate authority (CA) that has passed the international WEBTRUST certification.

2. Because multi-domain SSL is also divided into domain name verification and so on. In the process of domain name verification, like free SSL certificates, verification is done by checking the information of the domain name registrar or by e-mail, and the verification process of organizing and extending verification will be verified by company-related documents.

The above are all the contents of what is the difference between ssl certificate and ssl certificate for single domain name. Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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