Yes, you can create an SSL/TLS certificate yourself.
These are then the so-called self-signed certificates. These self-signed certificates can be issued independently. The disadvantage is that the certificates are marked as „not trustworthy“ in the browser, because your own root certificates are not stored in the browser.
Thus, a self-created SSL/TLS certificate is in fact only suitable for internal use at smaller companies and in the private sector.
For further questions please contact our support team at +49 661 480 276 10.