certcheck.sh a TLS/SSL certificate checker
A real-time, never cached check of a remote server's TLS/SSL certificate. Enter a hostname or IP address to view serial number, fingerprint, signature algorithm, subject, issuer, validity dates, and SANs. Authoritative DNS can be optionally overridden.
DISCLAIMER
This web-based tool is provided free of charge for informational purposes only. Use of this tool is at your own risk. While the goal is to provide accurate results, the results may contain errors or omissions due to technical limitations, network issues, or other factors. The completeness, reliability, or accuracy of the information provided is not guaranteed. The website owner is not liable for any damages or losses arising from the use of this tool.