Why do I see different colors in the Security status bar?

When you visit a website that uses a secure connection, the color of the Security Status bar tells you whether the certificate is valid, and it displays the level of validation that was performed by the certifying organization.

The following table describes what the Security Status bar colors mean.

Red: The certificate is out of date, invalid, or has an error. For more information, see "About Certificate Errors" in Related Topics.

Yellow: The authenticity of the certificate or certification authority that issued it cannot be verified. This might indicate a problem with the certification authority's website.

White: The certificate has normal validation. This means that communication between your browser and the website is encrypted. The certification authority makes no assertion about the business practices of the website.

Green: The certificate uses extended validation. This means that communication between your browser and website is encrypted and that the certification authority has confirmed the website is owned or operated by a business that is legally organized under the jurisdiction shown in the certificate and on the Security Status bar. The certification authority makes no assertion about the business practices of the website.