~/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 52 more days.
── output ─────
- Issued to
- starlingbank.com
- Issued by
- WE1
- Valid from
- 2026-03-15
- Valid until
- 2026-06-13 (52 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
- 2A:BB:D6:0E:6C:E6:80:9C:CE:FD:F2:42:36:91:F8:4A:6C:86:52:D2:95:4B:51:05:38:5E:0F:EA:A0:3C:E3:7F
- Serial
- 7E72CB8862744F200D786E87A8BCFDC7
subject_alt_names · 2
starlingbank.com
*.starlingbank.com
certificate_chain · 3 certs
[ leaf ]starlingbank.com
52 days left
issuer: WE1
2026-03-15 → 2026-06-13
[ 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