~/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 114 more days.

── output ─────

Issued to: *.hetzner.com
Issued by: Thawte TLS RSA CA G1
Valid from: 2025-07-14
Valid until: 2026-08-13 (114 days)
TLS version: TLSv1.3
Cipher: TLS_AES_256_GCM_SHA384
Key: EC (prime256v1) · 256 bit
Signature: sha256WithRSAEncryption
Forward secrecy: yes
Self-signed: no
Must-staple: no
SHA-256 fingerprint: DA:71:2A:CC:5A:36:D8:65:1F:3B:92:DA:AA:5A:67:15:2A:20:A8:3C:65:E5:31:47:B9:44:59:F0:01:29:AE:DC
Serial: 0CFCCBB8F3B133E198E1441362107ED2

subject_alt_names · 2

*.hetzner.com hetzner.com

certificate_chain · 2 certs

[ leaf ]*.hetzner.com

114 days left

issuer: Thawte TLS RSA CA G1

2025-07-14 → 2026-08-13

[ inter ]Thawte TLS RSA CA G1

559 days left

issuer: DigiCert Global Root G2

2017-11-02 → 2027-11-02

// Save hetzner.com → we'll run this daily and alert on changes. /signup →