6 places that provide free certificates to upgrade your website to HTTPS for free

As websites such as Google, Taobao, and Baidu have implemented HTTPS encrypted access to their entire sites, and as users are paying more and more attention to issues such as personal privacy information, adding SSL certificates to corporate and personal websites has become the "new standard" for the health and security of their websites.

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While enjoying the advantages of the "new standard", it also brings considerable costs to enterprises and individual users. Due to the high price of SSL certificates, many enterprises or individuals often choose to give up using Https when building websites.

How to get a free certificate?

With more and more network security issues, users have a growing demand for certificates. Some open source and free certificates have emerged. Here are some places where you can apply for free SSL certificates:

1. Let's Encrypt

Let's Encrypt is a public free SSL project hosted by the Linux Foundation and initiated by organizations such as Mozilla, Cisco, Akamai, IdenTrust and EFF. Its purpose is to automatically issue and manage free certificates to websites in order to accelerate the transition of the Internet from HTTP to HTTPS. Let's Encrypt is very simple and convenient to install and deploy.

Official website: https://letsencrypt.org

StartSSL

StartSSL is an SSL certificate issued by StartCom, the "forefather" of free SSL certificates. It is probably the only one that provides completely free SSL certificates and is supported by all major browsers. Anyone can apply for a free SSL certificate for one year from StartSSL.

PS: The first time you apply for a StartSSL free SSL certificate, it is free for one year, and you need to renew it in the second year.

Official website: https://www.startcomca.com

3. Wosign SSL

Wosign is a domestic website that provides SSL certificate services. Its free SSL certificate application is relatively simple and can be activated online. One SSL certificate can only correspond to one domain name and supports the Online Certificate Status Query Protocol (OCSP). SSL certificate application and management are relatively simple, and the website is in Chinese. If you have any questions, you can contact customer service.

Official website: https://wosign.com

4. Alibaba Cloud DV SSL Certificate

Symantec is a leading provider of SSL/TLS certificates, providing security protection for more than one million web servers worldwide. Free digital certificates protect up to one specific subdomain, do not support wildcards, and a maximum of 20 free certificates can be issued for one Ayun account.

PS: If each detailed domain name needs to be configured with SSL, you need to apply for multiple free SSL certificates separately.

Official website application address: https://www.aliyun.com/product/cas?spm=5176.12825654.h2v3icoap.98.312a2c4aGdBTKM

5. Tencent Cloud DV SSL Certificate

Tencent Cloud DV SSL domain name certificate is provided by Symantec with automatic review and certification, fast issuance, support for automatic CSR generation, automatic domain name identity DNS verification, one-step application submission, and fully automatic review and issuance process. It can be deployed to Tencent Cloud resources with one click, making data security easy to obtain.

Official website application address: https://cloud.tencent.com/product/ssl

6. COMODO PositiveSSL

1. COMODO official website only offers a free 90-day SSL certificate trial application. This COMODO PositiveSSL certificate comes from UK2, and VPS.net and other products are products of UK2. To obtain the free COMODO PositiveSSL provided by UK2, no additional operations are required. You only need to resolve the IP address of the domain name to the specified IP.

Official website: https://www.positivessl.com

How to obtain certificate expiration reminders in time

In addition to obtaining and configuring free certificates, operators must also worry about another issue, which is certificate expiration. Once expired, it will often have a certain impact on the company's Internet business. At present, we cannot rely on manual methods to detect certificate expiration. On the one hand, it is a waste of time, and on the other hand, operators may forget to check the validity of the certificate.