Once an SSL certificate is installed for your domain, visitors should use https://. You can redirect all HTTP traffic to HTTPS in cPanel.
Need a certificate first? See SSL Certificates.
- Log in to cPanel.
- Open Domains (or SSL/TLS Status / domain list, depending on theme).
- Find your domain and enable Force HTTPS Redirect (wording may vary slightly by cPanel theme).
If Force HTTPS isn’t available in the Domains UI, you can add an HTTPS redirect in .htaccess after the certificate is active — ask support if you need the exact snippet for your account.
Still seeing warnings? See SSL and HTTPS troubleshooting and What is SSL?.