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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

donga.com · 210.115.155.100:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
C=KR ST=Seoul L=Seodaemun-gu O=donga.com CN=*.donga.com
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign RSA OV SSL CA 2018
Valid from
2025-10-13T07:41:08+00:00
Expires
2026-11-14T07:41:07+00:00
Days remaining
51
Serial (hex)
26B22A07896FB0A14B8BDF28
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.donga.com, DNS:donga.com

SHA-256 fingerprint

A1:CE:51:ED:A3:8F:2B:42:F1:BA:3A:AD:E4:F0:FF:2A:67:22:B8:1C:EE:70:D6:E1:F2:A9:59:76:E9:55:A4:1A
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsrsaovsslca2018.crt OCSP - URI:http://ocsp.globalsign.com/gsrsaovsslca2018
certificatePolicies
Policy: 1.3.6.1.4.1.4146.1.20 CPS: https://www.globalsign.com/repository/ Policy: 2.23.140.1.2.2
subjectAltName
DNS:*.donga.com, DNS:donga.com
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
subjectKeyIdentifier
99:13:9F:86:23:46:15:70:3F:19:5D:43:9B:41:97:2C:85:8F:78:7D
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Oct 13 07:41:12.237 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FB:06:F1:58:C6:48:59:9F:C3:57:4B: 9F:46:7E:95:F7:56:28:B7:A3:65:39:70:70:43:F4:00: 8C:61:68:FD:70:02:20:49:62:CA:CF:D8:B9:A5:CB:E1: ED:56:5B:C6:B4:23:DA:76:CB:BA:2D:73:1A:05:34:B1: AA:69:15:C4:D7:F8:88 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Oct 13 07:41:12.228 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:86:E0:3E:72:53:E6:2C:21:FC:B6:0E: 37:D4:79:17:1F:40:F1:4E:57:0F:7B:3D:F5:BA:F3:CA: A9:58:5D:4F:DA:02:21:00:C6:EF:5C:8C:5E:58:CC:87: A7:CB:B4:13:F6:B0:79:60:9E:C1:A3:1C:57:5D:E6:97: 54:54:4E:70:54:BD:83:51 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Oct 13 07:41:12.225 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:7B:80:9A:B7:24:10:B4:8F:FA:52:48:1E: 59:00:9E:1C:EB:DE:37:03:DD:DF:AC:45:13:67:22:3F: 23:CA:75:25:02:21:00:EE:5B:A8:2D:C1:38:12:3C:0D: 24:5F:0F:FB:25:ED:B7:19:2F:44:DF:DA:80:FD:67:79: EB:B2:06:4E:38:7C:C3
-----BEGIN CERTIFICATE-----
MIIGRjCCBS6gAwIBAgIMJrIqB4lvsKFLi98oMA0GCSqGSIb3DQEBCwUAMFAxCzAJ
BgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMSYwJAYDVQQDEx1H
bG9iYWxTaWduIFJTQSBPViBTU0wgQ0EgMjAxODAeFw0yNTEwMTMwNzQxMDhaFw0y
NjExMTQwNzQxMDdaMF4xCzAJBgNVBAYTAktSMQ4wDAYDVQQIEwVTZW91bDEVMBMG
A1UEBxMMU2VvZGFlbXVuLWd1MRIwEAYDVQQKEwlkb25nYS5jb20xFDASBgNVBAMM
CyouZG9uZ2EuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA38fh
Ov6U1+/jWT6s2+SXaFtxyHhcJhope3BOHodiBFzsT+ZP8k/dKcKKxssl8PjG1PhB
DMatjLtPkGPonVXXJPbVydn8qgbiTnmnXFIcDPMjDJjJl1C7t5OqgjybOlhXlnoP
DsSJN3UPr3ExnPJzA54mgR87KfcSOPlc7RCOovnjOEIXjh2ZjhYo8FkybxL/dsLX
2Ta2IiE4GglN0yHilw45t2Jf2Fy8yz7sbBhHu/js8rdbpgl3jjYTWu2KPMriUe3/
JCKJMMeKJcmxf2G766+m57FDwTr5ex6T1HTIgf9mwuAzeirNRthe6a91+3flSeHA
DVIa8CBSbxhiAatoGwIDAQABo4IDEDCCAwwwDgYDVR0PAQH/BAQDAgWgMAwGA1Ud
EwEB/wQCMAAwgY4GCCsGAQUFBwEBBIGBMH8wRAYIKwYBBQUHMAKGOGh0dHA6Ly9z
ZWN1cmUuZ2xvYmFsc2lnbi5jb20vY2FjZXJ0L2dzcnNhb3Zzc2xjYTIwMTguY3J0
MDcGCCsGAQUFBzABhitodHRwOi8vb2NzcC5nbG9iYWxzaWduLmNvbS9nc3JzYW92
c3NsY2EyMDE4MFYGA1UdIARPME0wQQYJKwYBBAGgMgEUMDQwMgYIKwYBBQUHAgEW
Jmh0dHBzOi8vd3d3Lmdsb2JhbHNpZ24uY29tL3JlcG9zaXRvcnkvMAgGBmeBDAEC
AjAhBgNVHREEGjAYggsqLmRvbmdhLmNvbYIJZG9uZ2EuY29tMB0GA1UdJQQWMBQG
CCsGAQUFBwMBBggrBgEFBQcDAjAfBgNVHSMEGDAWgBT473/yzXhnqN5vjySNiPGH
AwKz6zAdBgNVHQ4EFgQUmROfhiNGFXA/GV1Dm0GXLIWPeH0wggF/BgorBgEEAdZ5
AgQCBIIBbwSCAWsBaQB2AJROQ4f67MHvgfMZJCaoGGUBx9NfOAIBP3JnfVU3LhnY
AAABmdyEJq0AAAQDAEcwRQIhAPsG8VjGSFmfw1dLn0Z+lfdWKLejZTlwcEP0AIxh
aP1wAiBJYsrP2Lmly+HtVlvGtCPadsu6LXMaBTSxqmkVxNf4iAB3AMs49xWJfISh
RF9bwd37yW7ymlnNRwppBYWwyxTDFFjnAAABmdyEJqQAAAQDAEgwRgIhAIbgPnJT
5iwh/LYON9R5Fx9A8U5XD3s99brzyqlYXU/aAiEAxu9cjF5YzIeny7QT9rB5YJ7B
oxxXXeaXVFROcFS9g1EAdgDCMX5XRRmjRe5/ON6ykEHrx8IhWiK/f9W1rXaa2Q5S
zQAAAZnchCahAAAEAwBHMEUCIHuAmrckELSP+lJIHlkAnhzr3jcD3d+sRRNnIj8j
ynUlAiEA7luoLcE4EjwNJF8P+yXttxkvRN/agP1neeuyBk44fMMwDQYJKoZIhvcN
AQELBQADggEBAD3ogKoIg7iN6yW5WJWRQUkiWOrLPRGt73d+CxBz0SQptCkarY46
p6oKw0f0aDVivyeX3oLmCtj2DaEeJQSm8LSZ1Ha1qUKIfsHqcCs07zrp0WtBxeeg
hn/QHX18xcPVbx1XcNZ5qtQeA/7jXerm70rN9LeJlApdCIzlZuKHaWmt3jzbksuf
OrVLAYSjAjjveJhLNVMG5bJlK3MzsGgImEfC4FRNcLitrpRvSpafBPXFFCNNXS6S
QQOuWT65A7yftFp7sbzXrnoRLn1W8ngB7vF7/7BrqwFzfP4JlcMj8vpjt+z7KecH
rZE/1K62VqgrT6Q1+O5S6QuumLOGSPiOScY=
-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-09-23T09:28:25+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign RSA OV SSL CA 2018
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2018-11-21T00:00:00+00:00
Expires
2028-11-21T00:00:00+00:00
Days remaining
789
Serial (hex)
01EE5F221DFC623BD4333A8557
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

B6:76:FF:A3:17:9E:88:12:09:3A:1B:5E:AF:EE:87:6A:E7:A6:AA:F2:31:07:8D:AD:1B:FB:21:CD:28:93:76:4A
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
F8:EF:7F:F2:CD:78:67:A8:DE:6F:8F:24:8D:88:F1:87:03:02:B3:EB
authorityKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
authorityInfoAccess
OCSP - URI:http://ocsp2.globalsign.com/rootr3
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root-r3.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

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

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