SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

workunion.ca

SSL/TLS Certificate

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SSL/TLS Certificate for workunion.ca

Valid
Issued by (CA)
Let's Encrypt
Subject
mail.workunion.ca
Valid from
Jul 13, 2026
Valid until
Oct 11, 2026 (81 days remaining)
Public key
RSA 2048-bit
Serial
05FDE492C874EFB3B3C17F69B4229987FAFB
SHA-256 fingerprint
84:17:81:46:42:9B:A7:27:FB:9A:92:65:67:E4:CD:81:21:0F:7C:1B:6B:2B:DA:56:AF:1B:C0:3D:BA:EA:D3:C1
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (3)
mail.workunion.ca, workunion.ca, www.workunion.ca

Certificate Authority Authorization (CAA)

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