Glossary term
What is SAN (Subject Alternative Name)?
SAN stands for Subject Alternative Name.
The list of hostnames and IPs inside a certificate; the name you visit must be in this list.
Learn it properly · Networking for DevelopersLesson 5: TLS and Certificates: How HTTPS Really WorksThe handshake in plain words, certificates and chains, Let's Encrypt, mTLS, and the errors you will meet.