SSL Installation Checker

Verify that your SSL certificate is installed correctly on your server.


SSL Server Certificate

Common Name: www.remain.co.kr

Issuing CA: GlobalSign GCC R6 AlphaSSL CA 2025

Organization:

Valid: August 29, 2025 to September 30, 2026

Key Size: 2048 bits

Subject Alternative Names (SANs)

www.remain.co.kr

remain.co.kr

Certificate Expiration

This certificate will expire in 372 days.

Certificate Common Name (CN) and Hostname Match?

The hostname (old.remain.co.kr) does NOT match the Common Name in the certificate (www.remain.co.kr). This certificate is currently invalid for this host.

DNS, etc.

old.remain.co.kr resolves to 182.162.21.143.
Server type: Apache

Certificate Chain Complete?

All of the correct Intermediate CA Certificates are installed. Your SSL certificate is installed correctly and should be supported in all the major web browsers without problems.

Common Name: GlobalSign

Organization: GlobalSign

Valid: March 18, 2009 to March 18, 2029

Issuer: GlobalSign

Serial Number: 04000000000121585308A2

Common Name: GlobalSign

Organization: GlobalSign

Valid: February 20, 2019 to March 18, 2029

Issuer: GlobalSign

Serial Number: 01F2404240CEFD22DBE96C71FC

Common Name: GlobalSign GCC R6 AlphaSSL CA 2025

Organization: GlobalSign nv-sa

Valid: May 21, 2025 to May 21, 2027

Issuer: GlobalSign

Serial Number: 837D4EB89E912FE72CAD3BC7692DDC20

Common Name: www.remain.co.kr

Organization:

Valid: August 29, 2025 to September 30, 2026

Issuer: GlobalSign GCC R6 AlphaSSL CA 2025

Serial Number: 65B7C6B850A96343D5788A91