DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.2

ns.daegu.ac.kr · 203.244.128.51:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed

Certificate verification failed

Subject
C=kr ST=seoul L=seoul O=inimax OU=s2dds CN=inimax.co.kr
Issuer
C=kr ST=seoul L=seoul O=inimax OU=s2dds CN=inimax.co.kr
Valid from
2017-06-11T09:00:09+00:00
Expires
2027-06-09T09:00:09+00:00
Days remaining
251
Serial (hex)
4EFDE24C
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

03:A8:1F:AE:02:B6:1B:D9:6B:FE:57:39:BF:F3:6D:8B:64:D8:FE:A3:55:AA:5B:29:10:8A:31:08:79:C2:EC:07
Certificate extensions & PEM
subjectKeyIdentifier
46:C9:0E:56:42:44:48:20:16:17:05:9F:EC:50:F1:53:03:C1:CD:86
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-09-30T20:48:17+00:00

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

Registration / WHOIS →DNS records →