How to Fix the Certificate Transparency Required Error in Chrome

The error message ERR_CERTIFICATE_TRANSPARENCY_REQUIRED occurs when Google Chrome blocks a website’s SSL certificate for not complying with Certificate Transparency (CT) policies. This means the certificate hasn’t been publicly logged for verification, which triggers the certificate transparency required error.

Follow the steps below to troubleshoot this net error certificate transparency required issue.

What causes the Google Chrome Certificate Transparency required error?

Some of the most common reasons why you get the Certificate Transparency Required error include:

• The website’s SSL certificate isn’t logged in Google’s CT logs.
• The certificate authority (CA) failed to add Signed Certificate Timestamps (SCTs).
• The site is using a self-signed or misconfigured certificate.
• Your browser enforces Google Certificate Transparency as a security measure.

How can I fix Chrome Certificate Transparency required error?

1. Update Google Chrome

1. Launch Google Chrome.
2. Click on the 3-dot menu icon.
3. Navigate to Help, then to About Google Chrome.

   

4. Chrome will automatically check for new updates, and install the latest one, if available.

   

Keeping Google Chrome up to date is a very important thing, as not only do you get to enjoy all the latest features it has to offer, but it also updates the security features of the browser.

There are chances that the previous version of Chrome had some bugs that triggered the error for you. In such a case, check for a new update and install it immediately if Chrome detects a new one.

2. Clear SSL State

1. Open the Start menu.
2. Search for Internet Options and open it.
3. Switch to the Content tab.
4. Hit the Clear SSL State button.

   

5. Click on Apply and then OK.
6. If required, restart your browser and then check if this fixes the Chrome Certificate Transparency required error or not.

When you perform the above steps, you are basically clearing the SSL certificate cache of your browser.

Because of a corrupt SSL certificate cache, your browser will throw up multiple security errors, including the Chrome Certificate Transparency required error.

Simply follow the above steps to clear the SSL certificate error and hopefully get rid of the ERR_CERTIFICATE_TRANSPARENCY_REQUIRED error.

3. Disable Windows Firewall

NOTE

You should never turn off Windows Defender Firewall or any other third-party antivirus on your PC unless you know what you are doing.

1. Open the Start menu.
2. Search for Windows Defender Firewall and open it.
3. From the left pane, click on Turn Windows Defender Firewall on or off.

   

4. Click on the Turn off Windows Defender Firewall boxes for both Private and Public network settings.

   

This method should only be used if none of the other two solutions worked for you. Your firewall may be checking SSL traffic, causing the error to show up on Chrome, ultimately causing the Certificate Transparency error.

You can disable the firewall or any other antivirus software that you have installed on your PC and then visit the website on Chrome and check if this fixes the issue or not.

What else can I do to resolve the error?

The above three solutions have helped users fix the problem at their end. However, if none of them helped you, then we have a few tips up our sleeves that should possibly get rid of the error.

• Clear browser cache
  1. Open Chrome.
  2. Click on the 3-dot menu icon.
  3. Select Settings.
  4. From the left pane, click on Privacy & Security.

     

  5. Hit Clear browsing data.

     

  6. Make sure to check the Cookies and other site data, and Cached images and files boxes.

     

• Disable extensions
  1. Open Chrome.
  1. Click on the 3-dot menu icon.
  2. Navigate to More tools followed by Extensions.

     

  3. Disable all extensions and check if this fixes the issue or not.

That’s it from us in this guide. We hope that you were able to fix the Chrome Certificate Transparency required error using the above solutions mentioned.

Do let us know in the comments below which one of the solutions helped you fix the problem and also let us know if you applied a different solution to fix the problem.