Yes, Cloudflare fully supports SSL encryption for websites. To use SSL with Cloudflare, you'll need an SSL certificate installed on your hosting server. Cloudflare offers multiple SSL modes that work alongside your existing certificate to encrypt traffic between your visitors, Cloudflare's network, and your origin server.
Understanding how Cloudflare's SSL works is essential for securing your website properly. Many hosting providers like OBHost include free SSL certificates with their plans, making it straightforward to enable full encryption when using Cloudflare.
How Cloudflare SSL Modes Work
Cloudflare provides several SSL encryption modes that determine how traffic is encrypted between different points in the connection chain. Each mode offers different levels of security based on your server configuration and certificate setup.
The main SSL modes available in Cloudflare are:
- Off: No encryption at all, not recommended for any website
- Flexible: Encrypts traffic between visitors and Cloudflare only, but not between Cloudflare and your server
- Full: Encrypts the entire connection but accepts self-signed certificates on your server
- Full (Strict): Requires a valid SSL certificate on your server, providing end-to-end encryption with proper validation
For maximum security, the Full (Strict) mode is recommended, which requires you to have a valid SSL certificate installed on your hosting account.
Setting Up SSL with Cloudflare
To properly configure SSL with Cloudflare, follow these steps to ensure your website remains secure and functions correctly.
Install an SSL Certificate on Your Server
Before configuring Cloudflare's SSL settings, you must have an SSL certificate installed on your hosting server. Most modern hosting providers offer free Let's Encrypt certificates or other SSL options. Contact your hosting provider if you need assistance installing a certificate on your account.
Configure Cloudflare SSL Mode
Log into your Cloudflare dashboard, select your domain, and navigate to the SSL/TLS section. Choose the appropriate SSL mode based on your certificate setup. If you have a valid certificate installed with OBHost or your hosting provider, select Full (Strict) for the strongest security.
Enable Additional Security Features
Cloudflare offers additional SSL-related features worth enabling:
- Always Use HTTPS: Automatically redirects all HTTP requests to HTTPS
- Automatic HTTPS Rewrites: Converts HTTP links to HTTPS where possible
- Minimum TLS Version: Set the minimum encryption protocol version clients must support
- TLS 1.3: Enable the latest TLS protocol for improved performance and security
Common Cloudflare SSL Issues and Solutions
When configuring SSL with Cloudflare, you might encounter some common issues that are typically easy to resolve.
Too Many Redirects Error
This error usually occurs when your Cloudflare SSL mode doesn't match your server configuration. If your server is redirecting HTTP to HTTPS but Cloudflare is using Flexible mode, you'll create a redirect loop. Switch to Full or Full (Strict) mode to resolve this.
Mixed Content Warnings
Browsers display mixed content warnings when your HTTPS page loads resources over HTTP. Enable Cloudflare's Automatic HTTPS Rewrites feature to fix most of these issues automatically. You may also need to update hardcoded HTTP links in your website code.
Certificate Mismatch Errors
If you're using Full (Strict) mode and see certificate errors, your server certificate may be expired, invalid, or not properly installed. Verify your SSL certificate is active and correctly configured on your hosting server.
Cloudflare Universal SSL vs. Custom Certificates
Cloudflare provides a free Universal SSL certificate for all domains using their service. This certificate covers the connection between visitors and Cloudflare's servers, but you still need a separate certificate on your origin server for full encryption.
For advanced users, Cloudflare also supports custom SSL certificates that you can upload and manage through their dashboard. This option is typically used by larger organizations with specific certificate requirements or extended validation certificates.
Frequently Asked Questions
Do I need to buy an SSL certificate if I use Cloudflare?
You need an SSL certificate on your hosting server to use Cloudflare's Full or Full (Strict) modes, which provide proper end-to-end encryption. However, you don't necessarily need to purchase one. Many hosting providers offer free SSL certificates through Let's Encrypt or other certificate authorities. Cloudflare's Universal SSL only covers traffic between visitors and Cloudflare, not between Cloudflare and your server.
What's the difference between Cloudflare's Flexible and Full SSL modes?
Flexible SSL encrypts traffic only between your visitors and Cloudflare's servers, leaving the connection between Cloudflare and your origin server unencrypted. Full SSL mode encrypts the entire connection end-to-end, though it accepts self-signed certificates. Full (Strict) requires a valid, properly signed certificate. For security, Full or Full (Strict) modes are recommended over Flexible.
Can I use Cloudflare SSL without changing nameservers?
Yes, if you use Cloudflare's DNS-only mode (gray cloud icon) or their CNAME setup for specific subdomains, you can configure SSL without fully routing traffic through Cloudflare. However, you won't benefit from Cloudflare's full security and performance features. For complete SSL protection through Cloudflare, pointing your nameservers to Cloudflare is the recommended approach.
How long does it take for Cloudflare SSL to activate?
Cloudflare's Universal SSL certificate typically provisions within 24 hours of adding your domain to their network, though it often activates much faster. During this time, you may see certificate errors. Once active, any SSL mode changes take effect immediately. If your certificate hasn't activated after 24 hours, check your DNS settings and ensure your domain is properly configured in Cloudflare.
Our support team is available 24/7 to help with SSL configuration, Cloudflare integration, or any hosting questions you may have. Visit our contact page or email support@obhost.org for assistance.
