~/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 307 more days.
── output ─────
- Issued to
- *.mediamarkt.nl
- Issued by
- GeoTrust TLS RSA CA G1
- Valid from
- 2026-02-23
- Valid until
- 2027-02-22 (307 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
- BB:D5:70:93:3E:43:FC:1E:A4:18:DA:06:C1:A0:35:22:E2:B6:A6:14:EA:63:FE:08:86:29:D4:CA:CC:64:77:34
- Serial
- 0591BABF665E8074553206DB60F5533D
subject_alt_names · 2
*.mediamarkt.nl
mediamarkt.nl
certificate_chain · 3 certs
[ leaf ]*.mediamarkt.nl
307 days left
issuer: GeoTrust TLS RSA CA G1
2026-02-23 → 2027-02-22
[ inter ]GeoTrust TLS RSA CA G1
559 days left
issuer: DigiCert Global Root G2
2017-11-02 → 2027-11-02
[ inter ]DigiCert Global Root G2
2028 days left
issuer: DigiCert Global Root CA
2024-01-18 → 2031-11-09