~/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 127 more days.
── output ─────
- Issued to
- yahoo.com
- Issued by
- DigiCert Global G2 TLS RSA SHA256 2020 CA1
- Valid from
- 2026-03-03
- Valid until
- 2026-08-26 (127 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_128_GCM_SHA256
- Key
- EC (prime256v1) · 256 bit
- Signature
- sha256WithRSAEncryption
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- 1E:1D:FC:32:34:AC:F4:23:59:B6:86:59:92:23:28:7A:6F:2B:90:6B:6A:12:9E:D9:9A:5D:83:AB:B5:A1:EC:C8
- Serial
- 0A71E31DB862583C0EBE662E96B67486
subject_alt_names · 16
yahoo.com
tw.rd.yahoo.com
s.yimg.com
mbp.yimg.com
hk.rd.yahoo.com
fr-ca.rogers.yahoo.com
ddl.fp.yahoo.com
ca.rogers.yahoo.com
ca.my.yahoo.com
brb.yahoo.net
add.my.yahoo.com
*.yahoo.com
*.www.yahoo.com
*.media.yahoo.com
*.att.yahoo.com
*.amp.yimg.com
certificate_chain · 2 certs
[ leaf ]yahoo.com
127 days left
issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
2026-03-03 → 2026-08-26
[ inter ]DigiCert Global G2 TLS RSA SHA256 2020 CA1
1616 days left
issuer: DigiCert Global Root G2
2020-09-24 → 2030-09-23