Wiki URL: ahmsaqib.miraheze.org
Your custom domain: ahmsaqib.cf
Do you want Let's Encrypt: <Yes/No, if No, we will provide you a CSR which you will send it over to CA to get a certificate. You will likely get a certificate in a zip file: Just upload all the files you're given by them.> I don't understand about Let's Encrypt and also don't know how can I get SSL Certificate by CSR.