~/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 73 more days.
── output ─────
- Issued to
- cnn.com
- Issued by
- GlobalSign ECC OV SSL CA 2018
- Valid from
- 2025-06-02
- Valid until
- 2026-07-04 (73 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_128_GCM_SHA256
- Key
- EC (prime256v1) · 256 bit
- Signature
- ecdsa-with-SHA384
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- AE:F9:14:4C:2C:95:E8:1F:36:43:C7:A5:06:4C:EC:85:E4:A8:85:DA:A9:9F:CC:50:92:BA:92:DC:53:BF:95:E4
- Serial
- 55F4B026CEDC0FE61EBB6AB0
subject_alt_names · 2
cnn.com
*.cnn.com
certificate_chain · 2 certs
[ leaf ]cnn.com
73 days left
issuer: GlobalSign ECC OV SSL CA 2018
2025-06-02 → 2026-07-04
[ inter ]GlobalSign ECC OV SSL CA 2018
944 days left
issuer: GlobalSign
2018-11-21 → 2028-11-21