~/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 191 more days.
── output ─────
- Issued to
- gitlab.com
- Issued by
- Sectigo Public Server Authentication CA DV R36
- Valid from
- 2026-04-26
- Valid until
- 2026-11-10 (191 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_256_GCM_SHA384
- Key
- RSA · 2048 bit
- Signature
- sha256WithRSAEncryption
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- 8E:94:AD:62:FD:33:80:A4:F6:5C:17:C0:94:A8:01:AF:BF:4D:D5:F1:A6:DD:29:C5:F7:A8:AF:60:4C:CE:2D:94
- Serial
- 013416EE0A6D91CA0611BA3A4DDB76F6
subject_alt_names · 6
gitlab.com
auth.gitlab.com
customers.gitlab.com
email.customers.gitlab.com
gprd.gitlab.com
www.gitlab.com
certificate_chain · 4 certs
[ leaf ]gitlab.com
191 days left
issuer: Sectigo Public Server Authentication CA DV R36
2026-04-26 → 2026-11-10
[ inter ]Sectigo Public Server Authentication CA DV R36
3610 days left
issuer: Sectigo Public Server Authentication Root R46
2021-03-22 → 2036-03-21
[ inter ]Sectigo Public Server Authentication Root R46
4278 days left
issuer: USERTrust RSA Certification Authority
2021-03-22 → 2038-01-18
[ inter ]USERTrust RSA Certification Authority
973 days left
issuer: AAA Certificate Services
2019-03-12 → 2028-12-31