What is the difference between a free SSL certificate and a paid one?

With the popularity of SSL certificates, CA agencies that provide free SSL have begun to appear, and more and more CA agencies have provided their own free SSL certificates to attract users, but many people will inevitably encounter such questions: What is the difference between a free SSL certificate and a paid SSL certificate? Since there is a free SSL certificate, why should I buy a paid SSL certificate?.

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First, the types are limited

Free SSL certificates only have domain name (DV) certificates, which are only used to provide basic level identity authentication and are only suitable for personal websites. Paid SSL certificates include organization validation (OV) and extended validation (EV) certificates, which have higher verification levels and corresponding higher security levels. They are more suitable for websites with higher security requirements.

Secondly, the validity period is different

Generally speaking, the validity period of SSL certificates provided free of charge by trusted certificate authorities (CA) is several months. Therefore, websites that deploy free SSL certificates require website operators and maintenance personnel to frequently update and redeploy SSL certificates. If any intermediate link is not connected, SSL certificates cannot be deployed, which is extremely unstable and unwise for corporate users. Paid SSL certificates are generally valid for one year, do not require high-frequency application and deployment, are very stable, and save a lot of tedious steps.

Then, technical and service support

Paid SSL certificates generally provide end-to-end technical support, including application and installation, and you can consult and solve any problems at any time. These are all things that free SSL certificates cannot enjoy.

Finally, the degree of trust given to users is different

Free SSL certificates can only display the https prefix and a green security lock in the browser address bar. Paid OV and EV SSL certificates can not only display https and a green security lock, but also query company details. EV SSL certificates can also turn the address bar green and display the company name directly in the address bar. These logos increase customers' trust in the website and greatly increase online transaction rates.

Therefore, free SSL certificates are free and can only be used as a temporary HTTPS solution. If you want to ensure the basic security of your website for a long time, it is recommended to apply for a paid SSL certificate.

How to obtain an SSL certificate for your website

The method of obtaining an SSL certificate is also very simple. You can apply to a professional CA organization to purchase and install it.

This article is reprinted from GDCA Digital Security Era.