SSL/TLS Certificate Lookup

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

schoolmessenger.com

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for schoolmessenger.com

Valid
Issued by (CA)
Amazon
Subject
*.schoolmessenger.com
Valid from
Jan 13, 2026
Valid until
Feb 11, 2027 (205 days remaining)
Public key
RSA 2048-bit
Serial
0374F40F0769A123312B0DE1A9E3A686
SHA-256 fingerprint
F6:A1:3C:E3:00:AF:29:79:60:F5:95:67:30:E0:63:0B:40:19:DA:6A:55:38:FA:D2:87:E1:D9:9E:B7:38:C5:E8
Chain
Amazon RSA 2048 M04 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (2)
*.schoolmessenger.com, schoolmessenger.com

Certificate Authority Authorization (CAA)

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