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 serwayphysics.com

Hostname mismatch
Issued by (CA)
Sectigo Limited
Subject
*.cengage.com
Valid from
Feb 11, 2026
Valid until
Mar 12, 2027 (234 days remaining)
Public key
RSA 4096-bit
Serial
74470576084EEE12595543B2A73FB056
SHA-256 fingerprint
79:EE:B5:30:D7:6D:C1:AF:5D:22:69:62:DC:BA:D6:95:2D:C5:23:E2:C1:E4:BB:99:7A:AA:FA:60:16:DF:74:1A
Chain
Sectigo Public Server Authentication CA OV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
*.cengage.com, cengage.com

Certificate Authority Authorization (CAA)

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