~/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 84 more days.
── output ─────
- Issued to
- carrefour.fr
- Issued by
- WE1
- Valid from
- 2026-04-16
- Valid until
- 2026-07-15 (84 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_256_GCM_SHA384
- Key
- EC (prime256v1) · 256 bit
- Signature
- ecdsa-with-SHA256
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- D7:48:A3:51:40:C9:5A:2B:02:53:C7:74:1B:08:83:3A:7D:9B:C5:63:9F:90:FC:64:87:98:78:79:8E:6C:A6:65
- Serial
- F634FAC33E9FFED51321F290A53AAA90
subject_alt_names · 5
carrefour.fr
www.carrefour.fr
media.carrefour.fr
static-cms.carrefour.fr
static.carrefour.fr
certificate_chain · 3 certs
[ leaf ]carrefour.fr
84 days left
issuer: WE1
2026-04-16 → 2026-07-15
[ inter ]WE1
1035 days left
issuer: GTS Root R4
2023-12-13 → 2029-02-20
[ inter ]GTS Root R4
646 days left
issuer: GlobalSign Root CA
2023-11-15 → 2028-01-28