~/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 176 more days.
── output ─────
- Issued to
- *.mail.com
- Issued by
- Sectigo Public Server Authentication CA OV R36
- Valid from
- 2025-10-14
- Valid until
- 2026-10-14 (176 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
- 76:09:97:BC:B2:66:E8:29:1D:21:58:47:9E:72:69:1F:A1:F8:7C:69:EC:EA:5C:B4:CF:05:22:CF:8B:00:3F:62
- Serial
- 4CCAD7FB480AC182B9ED00D5F1D89FD1
subject_alt_names · 2
*.mail.com
mail.com
certificate_chain · 3 certs
[ leaf ]*.mail.com
176 days left
issuer: Sectigo Public Server Authentication CA OV R36
2025-10-14 → 2026-10-14
[ inter ]Sectigo Public Server Authentication CA OV R36
3622 days left
issuer: Sectigo Public Server Authentication Root R46
2021-03-22 → 2036-03-21
[ inter ]Sectigo Public Server Authentication Root R46
4290 days left
issuer: USERTrust RSA Certification Authority
2021-03-22 → 2038-01-18