Shulou(Shulou.com)06/01 Report--

When we browse the web page at the beginning of http, we usually click on a web page and pop up a message saying "website is not safe". Is it very strange that this is clearly a normal URL? So how should we solve the problem that this site is not secure? With these questions, let's take a look at it next.

Why is the 1.http website not secure?

HTTP protocol (HyperText Transfer Protocol, Hypertext transfer Protocol) is a transfer protocol for clients to transmit information to web servers. The information transmission it uses is plaintext transmission. When transmitting information between the user and the web server, once someone intercepts this information, it also means that the information of the user is leaked, which is obviously a big obstacle to the rapid development of the Internet. Therefore, based on the consideration of information security, a more secure https transmission protocol is introduced internationally. Sites that are not transmitted by https protocol will default to insecure sites in browsers.

two。 How to make the website secure

We know that only websites that use the https protocol to transmit data will be considered secure by browsers by default, so how do you turn http into https? The answer is to install a SSL certificate, which is a digital certificate that complies with the https protocol and is issued by CA, a trusted digital certificate authority, after auditing the identity of the website, with server authentication and data transfer encryption. It consists of public key, private key, digital signature, and information. After the SSL certificate is installed on the website, a secure green SSL channel will be established between the website client and the web server. In the process of data transmission, the SSL certificate will encrypt the data to form a "string". When someone intercepts this information, it cannot be deciphered because there is no corresponding private key. When the information arrives at the server, the private key decrypts the information. In this way, the information can be obtained, which is a great improvement for the information security of users.

Therefore, for the websites that have installed SSL certificates, they all use https protocol for data transmission. In the browser, there will be a small green lock and a green navigation bar, and the website will display the word "safe".

3. What are the benefits of installing a SSL certificate

⑴ for the website, installing the SSL certificate is tantamount to adding a layer of protection to the website, which is of great help in improving the security of the website and resisting hackers.

The ⑵ website displays the word security, which is a security guarantee for browsing users and helps to enhance the trust of users.

⑶ for sites with SSL certificates installed, Baidu will give priority to site weight, SEO optimization ranking and other aspects.

4. How to select a SSL certificate

According to different brands, different types and categories, SSL certificates will also be classified into the following types:

EV SSL certificate enhanced SSL certificate, highest security level, 2048-bit encryption

The highest level of audit and verification in line with international standards, the highest security level of the certificate, the browser address bar shows the enterprise name, IE shows the green address bar, suitable for bank financial e-commerce.

OV SSL certificate enterprise SSL certificate, high security level, 2048-bit encryption

Verify the identity of the domain name and owner of the website. The certificate shows the name of the enterprise to which the website belongs. It supports 2048-bit encryption, which is suitable for middle and high-end enterprise users.

DV SSL certificate entry SSL certificate, fast issuance, low price

Only verify the domain name of the website, and the domain name verification can be completed in 10-20 minutes. The price is cheap and the signing speed is fast, so it is suitable for small and medium-sized enterprises.

SSL certificate securely encrypts the website, which can effectively prevent hijacking, prevent your website from being maliciously implanted with advertisements, prevent tampering and monitoring from leaking users' passwords, and optimize the SEO ranking of search engines with SSL certificates.

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