~/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 176 more days.
── output ─────
- Issued to
- *.dropbox.com
- Issued by
- DigiCert Global G3 TLS ECC SHA384 2020 CA1
- Valid from
- 2026-03-30
- Valid until
- 2026-10-14 (176 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_256_GCM_SHA384
- Key
- EC (prime256v1) · 256 bit
- Signature
- ecdsa-with-SHA384
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- 6B:8F:B3:4D:C2:11:32:C4:1D:CC:EA:80:42:6B:DC:DB:B3:ED:0F:5A:E4:F2:60:8E:8F:1B:80:D5:A2:AA:4A:DE
- Serial
- 0A06AD904318795A383389482673D5B9
subject_alt_names · 2
*.dropbox.com
dropbox.com
certificate_chain · 3 certs
[ leaf ]*.dropbox.com
176 days left
issuer: DigiCert Global G3 TLS ECC SHA384 2020 CA1
2026-03-30 → 2026-10-14
[ inter ]DigiCert Global G3 TLS ECC SHA384 2020 CA1
1818 days left
issuer: DigiCert Global Root G3
2021-04-14 → 2031-04-13
[ root ]DigiCert Global Root G3
4286 days left
issuer: DigiCert Global Root G3
2013-08-01 → 2038-01-15