SSL/TLS Certificate Lookup

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SSL/TLS Certificate for qr-code.app

Valid
Issued by (CA)
Let's Encrypt
Subject
mail.linkboard.com.br
Valid from
Nov 3, 2026
Valid until
Feb 1, 2027 (88 days remaining)
Public key
RSA 2048-bit
Serial
063031F19F538657E7E74EE3B1F4DDB562C1
SHA-256 fingerprint
B2:FF:C9:31:B2:E6:B5:BA:FD:5A:D8:29:66:34:36:9E:D6:63:18:AE:86:1A:6D:56:68:69:DF:C4:C2:FD:86:77
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (22)
autoconfig.linkboard.com.br, autodiscover.linkboard.com.br, cpanel.linkboard.com.br, cpcalendars.linkboard.com.br, cpcontacts.linkboard.com.br, linkb.app, linkb.me, linkb.pro, linkboard.com.br, mail.linkb.app, mail.linkb.me, mail.linkb.pro, mail.linkboard.com.br, mail.qr-code.app, qr-code.app, webdisk.linkboard.com.br, webmail.linkboard.com.br, www.linkb.app, www.linkb.me, www.linkb.pro, www.linkboard.com.br, www.qr-code.app

Certificate Authority Authorization (CAA)

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

This certificate has been served since Oct 2, 2026.

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Uptime

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TLS certificate

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