Check validity of SSL Certificate

This article will go over using most major browsers to check if an SSL is valid and when it expires. You can also view the details of the SSL such as which CA (Certificate Authority) issued the SSL.

Internet Explorer

1. Open Internet Explorer and navigate to the secure site.
2. If the site and all content are secured, you will see a lock icon in the URL bar.



If not, this warning may pop up:



3. Double click the lock icon and click View Certificates. A dialog box will appear. This will show details about the SSL such as when it was issued and valid until, who issued it (the CA or Certificate Authority), etc.

Firefox

1. Open Firefox and navigate to the secure site.
2. If the site is secured, you will see a lock icon at the bottom of the browser window or in the URL bar.



If not, you will see the following lock icon with a red exclamation point.



3. Double-clicking the lock icon and a dialog box will appear. This will show you that the certificate is valid. Clicking View Certificate will give you more information about the certificate.

Safari

1. Open Safari and navigate to the secure site.
2. If you see a lock in the upper right corner of Safari, the site is secured.



If the site is not secured, you will see a warning message dialog pop up.



3. Clicking the lock icon will give you more information about the SSL's validity and issuer.

Opera

1. Open Opera and navigate to the secure site.
2. If the site is secured, the URL bar will show you the common name of the SSL in yellow.



If not, there will be a gray icon with a question mark as below:



3. Clicking the yellow box with the common name and lock icon, a dialog box will appear.



4. You can then view the encryption strength, validity of the SSL, and other items.

Chrome

1. Open Chrome and navigate to the secure site.
2. If the site is secured, the URL bar will have a lock icon that looks like this:



If not, the site will have an X in the URL bar and a caution exclamation point such as this:



3. To view details of the SSL, double-click the lock icon. A dialog box will appear telling you if the SSL is valid, the encryption of the site, and when you last visited the site.



4. Click the Certificate Information button to view more details about the SSL such as when it was issued and valid until, who issued it (the CA or Certificate Authority), etc.

SeaMonkey

1. Open SeaMonkey and navigate to the secure site.
2. At the very bottom right corner of the browser window, there is a lock icon. If the SSL is valid and all portions of the site you are viewing are secured, it will look like this:



If not, it will look like this:



3. Double click the lock icon to see more information about the SSL. A dialog box will appear.



4. Click the View button to see more information about the SSL, when it is valid, who it was issued by (the CA or certificate authority). Click the Details tab to view more information about the SSL such as the encryption strength, issuer, physical address of the company the SSL was assigned to, etc.