SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for 44.1
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- gw.ampr.org
- Valid from
- Jan 16, 2026
- Valid until
- Apr 16, 2026 (expired 96 days ago)
- Public key
- RSA 2048-bit
- Serial
- 052403FC48FE2EA7DA29D4EE67404529C1A0
- SHA-256 fingerprint
- 89:6A:23:64:19:8E:84:A1:8C:E7:C2:B0:D5:92:85:E4:9E:7C:BF:2F:CB:98:B5:25:F0:5D:5D:C6:7A:F7:27:82
- Chain
- R12 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.