Web site to test browsers for the revoked digital certificate parameter

Most web browsers have the option to check for a revoked digital certificate for a particular URL.  The following web site was created as a test:

https://revoked.grc.com/

Below are some examples of different web browsers.  The first image is from Chrome, the second Firefox, and the third Internet Explorer.  The last image is an example of a browser that did not display a warning.  More details on the topic can be found at https://www.grc.com/revocation.htm.