~/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 85 more days.
── output ─────
- Issued to
- telegraaf.nl
- Issued by
- WE1
- Valid from
- 2026-04-17
- Valid until
- 2026-07-16 (85 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_256_GCM_SHA384
- Key
- EC (prime256v1) · 256 bit
- Signature
- ecdsa-with-SHA256
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- 63:A4:35:A1:5E:80:AE:84:BA:A0:B4:5B:4F:9E:E5:4D:14:31:CE:C4:F9:2B:91:91:23:3B:01:6A:71:49:0E:85
- Serial
- 07DA0692E6734FEC0EC9C56592ECE1A8
subject_alt_names · 2
telegraaf.nl
staging-journeybuilder.telegraaf.nl
certificate_chain · 3 certs
[ leaf ]telegraaf.nl
85 days left
issuer: WE1
2026-04-17 → 2026-07-16
[ inter ]WE1
1035 days left
issuer: GTS Root R4
2023-12-13 → 2029-02-20
[ inter ]GTS Root R4
646 days left
issuer: GlobalSign Root CA
2023-11-15 → 2028-01-28