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

daourelay.dovpc.com · 49.50.143.80:443

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
The certificate has expired.

Certificate verification failed

Subject
C=KR ST=Gyeonggi-do L=Yongin-si O=DAOU TECHNOLOGY INC OU=Support CN=daou.co.kr
Issuer
C=KR ST=Gyeonggi-do L=Yongin-si O=DAOU TECHNOLOGY INC OU=Support CN=daou.co.kr
Valid from
2016-03-09T01:41:53+00:00
Expires
2026-03-07T01:41:53+00:00
Days remaining
-237
Serial (hex)
03240CDC
Signature
RSA-SHA256
Public key
RSA 1024

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

B7:8B:FB:E4:EF:A2:C7:A4:63:E3:3A:47:55:86:44:7C:AB:5E:67:DD:E0:AA:6E:0C:D7:3D:05:B6:83:5D:20:EE
Certificate extensions & PEM
subjectKeyIdentifier
E8:4A:FA:65:2D:4E:1E:45:D4:DE:01:16:77:16:F5:1E:4E:7F:EB:70
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-29T19:26:56+00:00

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

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