~/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 53 more days.
── output ─────
- Issued to
- nos.nl
- Issued by
- Sectigo Public Server Authentication CA EV R36
- Valid from
- 2025-05-13
- Valid until
- 2026-06-13 (53 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_128_GCM_SHA256
- Key
- RSA · 2048 bit
- Signature
- sha384WithRSAEncryption
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- C3:B0:97:F8:EF:91:3B:83:BA:CE:10:3E:1B:74:77:A5:86:B6:0B:D4:AF:12:C5:37:FD:24:96:C4:C3:12:86:89
- Serial
- 301451F58F86804A42A9D0EAC76784F6
subject_alt_names · 1
nos.nl
certificate_chain · 3 certs
[ leaf ]nos.nl
53 days left
issuer: Sectigo Public Server Authentication CA EV R36
2025-05-13 → 2026-06-13
[ inter ]Sectigo Public Server Authentication CA EV 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