How to Fix the Untrusted Cert Title Error on MacBook

Are you experiencing an untrusted cert title error on your MacBook? This issue can occur when you try to visit a website that uses an SSL certificate that your computer does not recognize or trust. This can be frustrating, especially if you need to access the website for work or personal reasons. Fortunately, there are solutions to this problem that you can try. In this article, we will explore what causes the untrusted cert title error and provide steps to troubleshoot and resolve the issue.

What Causes the Untrusted Cert Title Error?

When you visit a website that uses an SSL certificate, your browser checks to make sure that the certificate is valid and issued from a trusted source. If the certificate is not recognized or trusted, your browser will display an error message indicating that the certificate is untrusted. This error typically occurs when there is a mismatch between the name on the SSL certificate and the name of the website you are trying to access.

There are several reasons why the untrusted cert title error may occur, including:

  • The SSL certificate is expired or has been revoked
  • The website’s hosting provider has changed
  • The SSL certificate was issued to a different domain name
  • The SSL certificate was self-signed

How to Fix the Untrusted Cert Title Error on MacBook

If you are experiencing the untrusted cert title error on your MacBook, there are several solutions that you can try:

Option 1: Adjust the Date and Time on Your MacBook

Sometimes, the date and time settings on your MacBook can cause the untrusted cert title error. To fix this, go to System Preferences > Date & Time and make sure that the “Set date and time automatically” option is selected. If this option is already selected, try toggling it off and on again to refresh your MacBook’s clock.

Option 2: Clear Your Browser’s Cache and Cookies

Clearing your browser’s cache and cookies can often resolve the untrusted cert title error. To do this in Google Chrome, go to Chrome > Clear Browsing Data and select “Cached images and files” and “Cookies and other site data”. Then, click “Clear data” to confirm. If you are using Safari, go to Safari > Preferences > Privacy and click “Manage Website Data” to clear your cache and cookies.

Option 3: Install the Certificate Manually

If the SSL certificate is valid but not recognized by your MacBook, you can try installing the certificate manually. To do this, visit the website using Google Chrome and click on the padlock icon in the address bar. Then, click “Certificate (Valid)” and select “Details”. Next, click “Export” and save the certificate to your desktop. Finally, double-click the certificate file to install it on your MacBook.

Concluding Thoughts on Untrusted Cert Title Error on MacBook

The untrusted cert title error on your MacBook can be a frustrating issue, but it is often caused by minor compatibility issues between your MacBook and the website’s SSL certificate. By adjusting your MacBook’s date and time, clearing your browser’s cache and cookies, or manually installing the certificate, you should be able to resolve the issue and access the website without any further problems.

FAQs about Untrusted Cert Title Error on MacBook

Q: Why does the untrusted cert title error only happen on my MacBook?
A: The untrusted cert title error can occur on any device that uses an SSL certificate, but it is more common on MacBook computers because of their strict security settings.

Q: Can I whitelist the website to prevent the untrusted cert title error?
A: Whitelisting a website may allow you to bypass the untrusted cert title error, but we do not recommend doing this as it can potentially expose your computer to security threats.

Q: What should I do if none of the solutions work?
A: If none of the solutions listed above work, contact the website’s administrator or your IT department for further assistance. They may be able to provide more specific guidance for your particular situation.



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Peter Graham
Peter Graham
Hi there! I'm Peter, a software engineer and tech enthusiast with over 10 years of experience in the field. I have a passion for sharing my knowledge and helping others understand the latest developments in the tech world. When I'm not coding, you can find me hiking or trying out the latest gadgets.


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