SSL certificate
Chain status
Trusted chain
Issuer
CN=GlobalSign GCC R6 AlphaSSL CA 2023,O=GlobalSign nv-sa,C=BE
Valid from
6/9/2025 4:53:41 PM
Valid until
7/11/2026 4:53:40 PM
Cipher
TLS_AES_128_GCM_SHA256
Subject alternative names
*.profteh.comprofteh.com
Certificate 1 /leaf
*.profteh.com
Issuer: CN=GlobalSign GCC R6 AlphaSSL CA 2023,O=GlobalSign nv-sa,C=BE
Until: 7/11/2026 4:53:40 PMCA: falseSelf-signed: false
Certificate 2 /last-presented
GlobalSign GCC R6 AlphaSSL CA 2023
Issuer: CN=GlobalSign,OU=GlobalSign Root CA - R6,O=GlobalSign
Until: 7/19/2026 12:00:00 AMCA: trueSelf-signed: false
certificate expiring soon
Tool switcher
Continue with another check
Same target (www.profteh.com) — open the next tool without retyping.
Full tool catalog →
Study notes
Related articles
Short guides for common searches around SSL Certificate Checker. Written like lab notes, not marketing.
ssl certificate expiry check, check ssl expiration online, certificate validity date
How I check SSL certificate expiry (without panicking)
A short guide on checking SSL certificate expiration dates online, reading notAfter fields, and why expired certs break HTTPS.
Read article →tls vs ssl difference, what is tls 1.3, ssl tls explained
TLS vs SSL — what our slides actually mean
Student-friendly explanation of TLS vs SSL naming, why sites still say SSL checker, and what TLS 1.2/1.3 means in practice.
Read article →ssl certificate chain, intermediate certificate, root ca trust store
Certificate chain — why «untrusted» appears
Beginner notes on SSL certificate chains, intermediate CAs, and why browsers need the full chain installed on the server.
Read article →
Back to SSL Certificate Checker