GlobalSign is a widely used SSL certificate provider.
Somehow, their OCSP server this morning falsely announced that one of
their root or intermediate certificates has been revoked, causing all
https connections to any site using GlobalSign certificates to show an
error like this:
"You cannot visit www.example.com right now because this certificate has
This error cannot be bypassed in most web browsers, so any SSL site
using a GlobalSign certificate is effectively offline.
Robert L Mathews, Tiger Technologies, http://www.tigertech.net/
Outages mailing list