NET::ERR_CERT_AUTHORITY_INVALID

NET::ERR_CERT_AUTHORITY_INVALID Error

Category: SSL / TLS Errors | Platforms: chrome windows macos

What This Error Means

This error means the browser does not trust the Certificate Authority (CA) that issued the website's SSL certificate. This often happens with self-signed certificates.

Common Causes

  • Self-signed SSL certificate.
  • Expired SSL certificate.
  • The CA is not in the browser's trusted store.
  • Network monitoring software intercepting traffic.

How to Fix It (For Users)

  1. 1 Proceed with caution (only if you trust the site).
  2. 2 Update your operating system and browser.
  3. 3 Disable antivirus SSL scanning.

For Site Owners / Developers

  1. Install a valid SSL certificate from a trusted CA.
  2. Ensure the intermediate certificate chain is complete.
  3. Renew the certificate if expired.

When It Is NOT Your Fault

If the website is using a self-signed or invalid certificate.

Check if this outage affects everyone globally

This error often indicates a wider problem. Use our tool to verify if the site is down for everyone.

Check Website Status →

Recommended Tool to Prevent This Error

Get free, automatic SSL certificates and fix handshake errors instantly.

Cloudflare Universal SSL