~/tools / ssl-checker
SSL Checker
Check SSL certificate expiry, chain validity, TLS version and cipher. Catches expired certs, weak crypto and chain issues.
[ ERROR ]
Certificate expired 73 days ago. Renew immediately.
── output ─────
- Issued to
- *.yourdomain.com
- Issued by
- RapidSSL TLS RSA CA G1
- Valid from
- 2025-01-18
- Valid until
- 2026-02-07 (-73 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_256_GCM_SHA384
- Key
- RSA · 2048 bit
- Signature
- sha256WithRSAEncryption
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- AE:2D:AC:CE:88:0C:7F:3B:BE:70:8F:38:24:F1:0B:3E:81:8C:A8:AC:B3:44:15:6B:79:61:01:FB:5D:81:A3:5D
- Serial
- 0ABCBE0A42C11D0F1A8D48ECE5B12912
subject_alt_names · 2
*.yourdomain.com
yourdomain.com
certificate_chain · 2 certs
[ leaf ]*.yourdomain.com
-73 days left
issuer: RapidSSL TLS RSA CA G1
2025-01-18 → 2026-02-07
[ inter ]RapidSSL TLS RSA CA G1
559 days left
issuer: DigiCert Global Root G2
2017-11-02 → 2027-11-02