~/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 214 more days.
── output ─────
- Issued to
- zalando.com
- Issued by
- Amazon RSA 2048 M01
- Valid from
- 2025-10-23
- Valid until
- 2026-11-21 (214 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
- 39:01:B1:DB:5A:2B:EC:87:76:FA:9B:8F:07:9C:37:90:11:FB:13:E3:CA:62:53:A6:85:CF:46:BA:74:56:BB:0A
- Serial
- 0507A80409269FC86A8731C294C46B2A
subject_alt_names · 34
zalando.com
zalando.ee
zalando.ch
zalando.com.tr
zalando.com.au
zalando.es
zalando.gr
zalando.it
zalando.se
*.zalando.com.tr
zalando.si
zalando.sk
*.zalando.com
zalando.ie
zalando.de
zalando.no
zalando.co.uk
*.zalando.com.au
zalando.bg
zalando.be
zalando.fi
zalando.pt
zalando.lu
zalando.hr
zalando.lv
zalando.dk
zalando.lt
zalando.hu
zalando.fr
zalando.at
zalando.cz
zalando.ro
zalando.nl
zalando.pl
certificate_chain · 3 certs
[ leaf ]zalando.com
214 days left
issuer: Amazon RSA 2048 M01
2025-10-23 → 2026-11-21
[ inter ]Amazon RSA 2048 M01
1585 days left
issuer: Amazon Root CA 1
2022-08-23 → 2030-08-23
[ inter ]Amazon Root CA 1
4271 days left
issuer: Starfield Services Root Certificate Authority - G2
2015-05-25 → 2037-12-31