Is there any non-commercial certificate authority capable of issuing valid certificates for web applications? I mean, the certificate must be accepted by browsers, like those of commercial CAs?


2 Answers 2


Start SSL is a commercial CA that issues standard SSL certificates free of charge. They are accepted by all common browsers, except for very old versions of Opera.


You can try Let's Encrypt. Is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG) and sponsored by several companies.

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