Chrome ERR_CERT_AUTHORITY_INVALID

Chrome ERR_CERT_AUTHORITY_INVALID means the website SSL certificate was issued by an untrusted certificate authority. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: Certificate not signed by a trusted root CA. Chrome shows "Your connection is not private". NET::ERR_CERT_AUTHORITY_INVALID warning page. Proceeding may expose your data to interception. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Self-signed SSL certificate on the server. Certificate authority not in Chrome trust store. Corporate proxy intercepting HTTPS with its own cert. Let's Encrypt certificate chain incomplete. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Check if the certificate is from a recognized CA. For corporate networks: import company root certificate. Contact website owner about certificate issue. Do NOT bypass warning for banking or sensitive sites. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

This article is part of our Browser Errors collection on Error Codes Wiki. We provide comprehensive, up-to-date information to help you find solutions quickly.