Free SSL certificate (https website) application

How to have your own free SSL certificate and keep it for a long time. This article lets you find available free certificates o(*￣︶￣*)o

The free SSL provided by each manufacturer is basically Symantec, and the application is for one year. Wildcards are not supported and there is a quantity limit.

1. Alibaba Cloud https://common-buy.aliyun.com/?commodityCode=cas#/buy Free digital certificates can protect up to one detailed subdomain name. Wildcards are not supported. One Ayun account can issue up to 20 free certificates. Compatibility is as follows: operating system versions IOS 5.0+, Android 2.3.3+, JRE 1.6.5+, WIN 7+. [News] Digicert completed the acquisition of Symantec Certificate Services on December 1, 2017. Since then, all newly applied Symantec/GeoTrust brand certificates have been switched to the Digicert+Symantec cross-certification PKI system for issuance. The old root that has been issued by Symantec/GeoTrust of the Alibaba Cloud platform will also be updated to the new cross root as planned. Symantec is the leading provider of SSL/TLS certificates, securing more than one million web servers worldwide. When you choose Symantec, you can rest assured that your website and reputation will be protected by a Certificate Authority (CA).

2. Tencent Cloud DV SSL Certificate https://cloud.tencent.com/product/ssl You can only apply for a maximum of 20 Asia Integrity Brand free DV version SSL certificates for the same main domain (the first-level domain name and its subdomain names belong to the same main domain, such as domain.com, ssl.domain.com, ssl.ssl.domain.com all belong to the same main domain). TrustAsia, Symantec's Asia-Pacific Platinum strategic partner, develops a self-developed certificate brand and is issued by Symantec's root certificate. Only one first-level domain name or subdomain name is supported. For example, domain.com, ssl.domain.com, and ssl.ssl.domain.com are each one domain name.

3. Let’s Encrypt supports wildcards https://letsencrypt.org/ Let’s Encrypt is a free and open source CA, and has obtained root credit from major browser manufacturers such as Mozilla and Microsoft. It greatly lowers the entry threshold for DV certificates, thereby promoting the HTTPSization of the entire network. Settings can be generated directly using the relevant software (which needs to be deployed to your own server). Note: https://letsencrypt.osfipin.com/ There is no need to deploy the software on your own server, you can apply directly. Currently, it needs to be renewed every three months.

4. Baidu Cloud https://cloud.baidu.com/product/ssl.html Symantec is the world's largest information security service provider. This certificate is a certificate product exclusively provided by Mainland China's certificate service provider TrustAsia (Asia Trust) and Symantec for Baidu Cloud users. The market value is 1,900 yuan.

5. CloudFlare SSL https://www.cloudflare.com/ You can turn on SSL with one click in Cloudflare's "Encryption". This SSL has four modes: Off, Flexible SSL, Full SSL, Full SSL (strict), and Strict (SSL-Only Origin Pull). Flexible SSL: There is an encrypted connection between your website visitors and Cloudflare, but no encryption from Cloudflare to your server. That is half-way encryption. The advantage is: your website does not require an SSL certificate, and users can also achieve SSL encrypted access. Full SSL: The entire process is encrypted, that is, from your website to the CDN server to the user, the entire process is SSL encrypted. The advantage is that as long as your server has an SSL certificate (whether it is a self-signed certificate or a purchased SSL), you can achieve SSL encrypted access. Full SSL (strict): full encryption. The difference between it and Full SSL is that your server must have a trusted SSL certificate installed (that is, a purchased SSL certificate), otherwise SSL encrypted access cannot be enabled. Strict (SSL-Only Origin Pull): Enterprise mode. Automatically convert all HTTP to HTTPS encrypted access, requiring your server to install a trusted and valid SSL certificate.

Some screenshots:

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