How to Fix “SSL Error” in Cloudflare (2026 Guide)

The Short Answer

To fix the “SSL Error” in Cloudflare, advanced users can try toggling the “Always Use HTTPS” option to Off and then back to On, which can resolve the issue in under 1 minute. Alternatively, checking the DNS propagation status and waiting for up to 48 hours for the changes to take effect can also resolve the issue.

Why This Error Happens

  • Reason 1: The most common cause of the “SSL Error” in Cloudflare is due to incomplete or delayed DNS propagation, which can take anywhere from 15 minutes to 48 hours to complete, depending on the domain registrar and the location of the user.
  • Reason 2: An edge case cause of this error is when the SSL certificate is not properly configured or is expired, which can happen if the certificate is not automatically renewed or if the domain name is changed.
  • Impact: The result of this error is a “Certificate Invalid” message, which can lead to a loss of trust and credibility for the website, as well as potential security risks if the issue is not resolved promptly.

Step-by-Step Solutions

Method 1: The Quick Fix

  1. Go to SSL/TLS > Edge Certificates and check the status of the SSL certificate.
  2. Toggle the “Always Use HTTPS” option to Off and then back to On to reset the SSL connection.
  3. Refresh the page to see if the issue is resolved, which can take up to 30 seconds.

Method 2: The Command Line/Advanced Fix

For advanced users, running the following command in the terminal can help to verify the DNS propagation status:

dig +short example.com

Replace “example.com” with the actual domain name. This command will display the current DNS records for the domain, which can help to identify any issues with the DNS propagation.

Prevention: How to Stop This Coming Back

  • Best practice configuration: To prevent this issue from happening again, make sure to set up automatic SSL certificate renewal and monitor the DNS propagation status regularly.
  • Monitoring tips: Use tools like Cloudflare’s built-in DNS analytics or third-party services like DNSChecker to monitor the DNS propagation status and receive alerts if any issues arise.

If You Can’t Fix It…

[!WARNING] If Cloudflare keeps crashing or the “SSL Error” persists after trying the above solutions, consider switching to AWS Route 53 which handles DNS propagation natively without these errors and provides a more robust and reliable DNS management system.

FAQ

Q: Will I lose data fixing this? A: The risk of data loss is minimal, as the fix only involves toggling the “Always Use HTTPS” option or verifying the DNS propagation status. However, it’s always a good idea to back up the website data before making any changes.

Q: Is this a bug in Cloudflare? A: The “SSL Error” is not a bug in Cloudflare, but rather a common issue that can occur due to incomplete or delayed DNS propagation. Cloudflare has been continuously improving its DNS management system, and the latest version (as of 2026) includes features like automatic SSL certificate renewal and enhanced DNS analytics to help prevent and resolve this issue.


📚 Continue Learning

Check out our guides on Cloudflare and SSL Error.