The Internet relies on X.509 certificates for trust, but sometimes these certificates need to be revoked. Currently, there is no standard way to transparently track revoked certificates. A study analyzed over 1 million revoked certificates, including those from Let's Encrypt, to understand revocation practices. The analysis showed that revocation statuses are short-lived, vary between different certificate authorities, and reveal biases in handling revoked certificates. This research suggests the need for a standard to make certificate revocation more transparent.