Software⏱️ 4 min read📅 2026-06-11

How to Fix: Chrome CA cert Security Error

Chrome CA cert Security Error

Quick Answer: Check if the certificate is installed correctly in Chrome's Keychain and try to import it manually.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. ✅ Best Solutions to Fix It
  3. 💡 Conclusion

The 'Invalid Server Certificate' error in Chrome indicates that the browser is unable to trust the SSL/TLS certificate presented by the server of your domain. This issue can affect anyone using Chrome, regardless of their operating system or version, as long as they have a valid CA (Certificate Authority) certificate installed.

This error can be frustrating, especially if you're trying to access a specific website that's not working properly due to this issue. However, by following the steps outlined in this guide, you should be able to resolve the problem and regain access to your site.

⚠️ Common Causes

  • The primary reason for this error is that Chrome has become more stringent about verifying SSL/TLS certificates. In recent versions of Chrome, the browser now checks the certificate chain more thoroughly, which may cause issues if you have an outdated or corrupted CA certificate. Additionally, some CA certificates may be blocked by default due to security concerns.
  • Another possible reason for this error is that the CA certificate you installed in your Keychain may not be recognized by Chrome. This could be due to various reasons such as the certificate being in an incompatible format or not being properly configured.

✅ Best Solutions to Fix It

Importing CA Certificate into Chrome

  1. Step 1: Open Chrome and go to the Chrome menu (three vertical dots) by clicking on the wrench icon. Select 'Settings'.
  2. Step 2: In the settings page, scroll down to the 'Advanced' section and click on 'System'.
  3. Step 3: Click on 'Certificates' and then select 'Add a trusted certificate'.
  4. Step 4: Select the CA certificate file you want to import from your computer.
  5. Step 5: Follow the prompts to complete the installation process.

Configuring Chrome to Trust the CA Certificate

  1. Step 1: Open Chrome and go to the Chrome menu (three vertical dots) by clicking on the wrench icon. Select 'Settings'.
  2. Step 2: In the settings page, scroll down to the 'Advanced' section and click on 'System'.
  3. Step 3: Click on 'Certificates' and then select the CA certificate you installed in your Keychain.
  4. Step 4: Check the box next to 'Always trust this site for HTTP' or 'Always trust this site for HTTPS', depending on whether your site uses HTTP or HTTPS protocols.
  5. Step 5: Click 'OK' to save the changes.

💡 Conclusion

By following these steps, you should be able to resolve the 'Invalid Server Certificate' error in Chrome and regain access to your site. Remember to regularly update your CA certificates to ensure that they remain valid and trusted by Chrome.

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