SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gnsalumni.org
SSL/TLS Certificate
SSL/TLS Certificate for gnsalumni.org
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- aiu.to
- Valid from
- Apr 16, 2025
- Valid until
- Jul 15, 2025 (expired 372 days ago)
- Public key
- RSA 2048-bit
- Serial
- 06091279B9A58E65030EFC439844AC3CE211
- SHA-256 fingerprint
- 2B:B9:7E:A9:12:91:02:E1:34:16:6A:F7:18:F7:BE:87:85:38:49:38:3C:A2:33:F8:C0:35:7C:D7:BF:AD:CC:BB
- Chain
- R10 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.