~/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 312 more days.
── output ─────
- Issued to
- monzo-prod.com
- Issued by
- Amazon RSA 2048 M04
- Valid from
- 2026-01-30
- Valid until
- 2027-02-27 (312 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_128_GCM_SHA256
- Key
- RSA · 2048 bit
- Signature
- sha256WithRSAEncryption
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- 6F:A7:52:B4:58:92:02:A2:16:A9:DD:03:2E:F1:57:98:F0:BA:AD:C5:D5:6B:6B:39:6C:36:5F:26:6B:A1:50:66
- Serial
- 01E656F1F1DC3C540ACF94CE4DB3456B
subject_alt_names · 2
monzo-prod.com
monzo.com
certificate_chain · 3 certs
[ leaf ]monzo-prod.com
312 days left
issuer: Amazon RSA 2048 M04
2026-01-30 → 2027-02-27
[ inter ]Amazon RSA 2048 M04
1585 days left
issuer: Amazon Root CA 1
2022-08-23 → 2030-08-23
[ inter ]Amazon Root CA 1
4271 days left
issuer: Starfield Services Root Certificate Authority - G2
2015-05-25 → 2037-12-31