SSL Server Certificate
Common Name: *.pcz.pl
Issuing CA: GEANT TLS RSA 1
Organization: Politechnika Częstochowska
Valid: December 19, 2025 to December 19, 2026
Key Size: 4096 bits
Subject Alternative Names (SANs)
*.pcz.pl
pcz.pl
Certificate Expiration
This certificate will expire in 282 days.
Certificate Common Name (CN) and Hostname Match?
The hostname (pcz.pl) matches the certificate and the certificate is valid.
DNS, etc.
pcz.pl
resolves to 212.87.229.113.
Server type: Apache
Certificate Chain Complete?
All of the correct Intermediate CA Certificates are installed. Your SSL certificate is installed correctly and should be supported in all the major web browsers without problems.
Common Name: Hellenic Academic and Research Institutions RootCA 2015
Organization: Hellenic Academic and Research Institutions Cert. Authority
Valid: July 07, 2015 to June 30, 2040
Issuer: Hellenic Academic and Research Institutions RootCA 2015
Serial Number: 0
Common Name: HARICA TLS RSA Root CA 2021
Organization: Hellenic Academic and Research Institutions CA
Valid: September 02, 2021 to August 31, 2029
Issuer: Hellenic Academic and Research Institutions RootCA 2015
Serial Number: 2A6086D4D4DE45C95E4B98FBBF2FBF26
Common Name: GEANT TLS RSA 1
Organization: Hellenic Academic and Research Institutions CA
Valid: January 03, 2025 to December 31, 2039
Issuer: HARICA TLS RSA Root CA 2021
Serial Number: 14D57BF3692228219A5567FA91651B22
Common Name: *.pcz.pl
Organization: Politechnika Częstochowska
Valid: December 19, 2025 to December 19, 2026
Issuer: GEANT TLS RSA 1
Serial Number: 26B8AB2C32A21ED5BD8835698AD0E6E7