Will a wildcard ssl certificate work?

Question

Digital certificates

There is a service in which users can create their own subdomains and post something on them. I would like to automatically provide HTTPS to all subdomains. Do I understand correctly that a wildcard would be fine for this? That is, it needs to be obtained and installed once and any future subdomains will be protected without any additional gestures?
Are there any restrictions and features?

Answer 1

You understand correctly with one exception - in subdomain hosts, you must also connect this certificate. I can sell the certificate for cheap. contact

Answer 2

> Do I understand correctly that wildcard is suitable for this?
Yes
> That is, it needs to be obtained and installed once
Yes, but not once. The certificate has a validity period of 3 months to 2 years. Before the expiration date, you must extend it (get a new one).
I recommend the free Let's Encrypt and set it to update automatically.
https://habrahabr.ru/post/270273/

Answer 3

Also, a number of wildcard certificates apply ONLY to subdomains, without affecting the domain itself, and some of them apply to both the domain and subdomains. Check this point carefully.

Answer 4

Free Let 's Encrypt wildcard will be from 2018
https://habrahabr.ru/post/332594/

Answer 5

Yes, Wildcard SSL certificate is suitable. Because it secures unlimited sub domains of the main domain. With Wildcard SSL certificate, you can add additional sub domains of the main domain afterwards too. But before that particular Wildcard SSL certificate expiry date.