If your web hosting package, i.e. the storage space of your homepage is not at checkdomain, you have to create a CSR yourself. This is usually done directly on your server.
Instructions on how to create a CSR on your server can be found here:
Creating the CSR directly on the server
Alternatively, you can also create the CSR directly online, although this is not recommended, as the CSR should always be created on the server on which the certificate is to be used.
Creating a CSR directly online
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