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 synci.com

Untrusted chain
Issued by (CA)
Let's Encrypt
Subject
synci.com
Valid from
Jun 10, 2026
Valid until
Sep 8, 2026 (48 days remaining)
Public key
EC 256-bit
Serial
06F3FB0E03F07B4F92A7E683872DD148AB77
SHA-256 fingerprint
1F:4F:E6:FC:D4:27:A5:08:60:6E:B4:DE:58:53:FF:2E:4A:1D:1D:5E:9A:EE:77:C3:9F:B4:FF:41:54:0E:08:06
Chain
YE2
Subject Alternative Names (1)
synci.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.