~/tools / ssl-checker
SSL Checker
Check SSL certificate expiry, chain validity, TLS version and cipher. Catches expired certs, weak crypto and chain issues.
[ OK ]
Valid for 305 more days.
── output ─────
- Issued to
- *.saturn.de
- Issued by
- GeoTrust TLS RSA CA G1
- Valid from
- 2026-02-23
- Valid until
- 2027-02-22 (305 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_256_GCM_SHA384
- Key
- RSA · 2048 bit
- Signature
- sha256WithRSAEncryption
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- 78:3F:12:2F:24:51:B0:B9:1D:EA:CD:DE:8A:B9:93:31:D2:4D:16:96:B8:86:47:91:15:14:26:F4:8B:D6:08:4D
- Serial
- 09AFB32DAE13EEC3306DA30CE38BD269
subject_alt_names · 2
*.saturn.de
saturn.de
certificate_chain · 3 certs
[ leaf ]*.saturn.de
305 days left
issuer: GeoTrust TLS RSA CA G1
2026-02-23 → 2027-02-22
[ inter ]GeoTrust TLS RSA CA G1
558 days left
issuer: DigiCert Global Root G2
2017-11-02 → 2027-11-02
[ inter ]DigiCert Global Root G2
2026 days left
issuer: DigiCert Global Root CA
2024-01-18 → 2031-11-09