Introduction

The SSL/TLS interface in cPanel allows you to manage Secure Sockets Layer (SSL) certificates for your domains. SSL encrypts data transmitted between your website and visitors, ensuring secure communication and protecting sensitive information like login credentials, credit card numbers, and personal data. Enabling SSL also builds trust with your users and helps improve your site's SEO ranking.

This article will guide you through generating, installing, and managing SSL certificates using the SSL/TLS tool in cPanel.


Why SSL Matters

  • Encrypts data to prevent theft or interception

  • Secures login forms, checkout pages, and data submission

  • Displays the secure padlock icon (????) in browsers

  • Improves SEO ranking (Google prioritizes HTTPS sites)

  • Complies with modern web standards and regulations


How to Access SSL/TLS in cPanel

  1. Log in to your cPanel account

  2. Scroll to the Security section

  3. Click on SSL/TLS


Main Sections of the SSL/TLS Interface

The tool is divided into several sections:

1. Private Keys (KEY)

  • Allows you to generate or upload private keys used for SSL encryption

  • Private keys should be kept confidential and never shared

2. Certificate Signing Requests (CSR)

  • A CSR is generated when requesting a new SSL certificate from a Certificate Authority (CA)

  • It contains domain details and the public key

3. Certificates (CRT)

  • Upload, view, or delete SSL certificates

  • Install third-party certificates issued by providers like Sectigo, DigiCert, etc.

4. Install and Manage SSL for your site (HTTPS)

  • Automatically install an SSL certificate for your domain

  • Allows selection of domains and matching private keys and certificates


Installing a Third-Party SSL Certificate

To manually install a purchased certificate:

  1. Generate a Private Key (if not already present)

  2. Create a CSR with domain and company details

  3. Submit the CSR to your certificate provider

  4. After verification, you’ll receive a certificate file (.crt)

  5. Upload the certificate via Certificates (CRT)

  6. Use Install and Manage SSL to apply the certificate to your domain


Using Free AutoSSL (if available)

Many hosting providers include AutoSSL or Let’s Encrypt integration.

To check if AutoSSL is working:

  1. Go to SSL/TLS Status in cPanel (not in this specific interface, but related)

  2. Look for green padlock indicators

  3. If expired or missing, you can run AutoSSL manually or contact support


Managing Expired or Invalid SSL

If your certificate expires:

  • Visitors may see browser warnings like “Your connection is not private”

  • Renew your SSL via your provider or enable AutoSSL if available

  • Always make sure your domain is pointing to the correct IP/DNS to allow SSL renewal


Best Practices

  • Always use HTTPS site-wide (redirect HTTP to HTTPS)

  • Periodically check the validity and expiration date of your SSL

  • Use SSL checker tools to verify installation status

  • If hosting multiple domains, install separate certificates for each (unless using a wildcard)


Troubleshooting

Issue Solution
SSL not displaying or padlock missing Check if certificate is installed and domain uses HTTPS
Browser shows “not secure” Redirect all traffic to HTTPS in .htaccess
Certificate mismatch Ensure the correct CRT and KEY pair is installed
AutoSSL not working Make sure DNS is correctly pointed and domain resolves

Conclusion

The SSL/TLS tool in cPanel gives you full control over your site’s encryption. Whether installing a free or premium certificate, this interface ensures your website meets modern security standards. By protecting your visitors and securing data, SSL/TLS builds trust and strengthens your site’s credibility and performance.

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