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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

TLSv1.3

daum.net · 211.249.220.24:443

Verified

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

Subject
C=KR ST=Jeju-do L=Jeju-si O=Kakao Corp. CN=*.daum.net
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=Thawte TLS RSA CA G1
Valid from
2026-08-10T00:00:00+00:00
Expires
2027-02-24T23:59:59+00:00
Days remaining
148
Serial (hex)
08978D6AD25DB5936253C6BD36B8CB60
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.daum.net, DNS:daum.net

SHA-256 fingerprint

CF:78:84:B1:A6:CD:52:B6:5F:31:16:56:19:FB:5E:1F:90:DA:AB:B0:8D:1C:B8:52:D0:91:28:3A:14:4A:F2:AB
Certificate extensions & PEM
authorityKeyIdentifier
A5:8C:FE:32:CC:EB:0F:2C:D4:19:C6:08:B8:00:24:88:5D:C3:C5:B7
subjectKeyIdentifier
93:AA:85:84:6E:E0:CA:3A:C5:57:5D:C5:AD:A4:8C:AC:80:15:5B:1D
subjectAltName
DNS:*.daum.net, DNS:daum.net
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://cdp.thawte.com/ThawteTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.thawte.com CA Issuers - URI:http://cacerts.thawte.com/ThawteTLSRSACAG1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Aug 10 02:24:42.230 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:14:A9:69:A2:1D:5B:4C:83:A6:F9:E7:F2: BC:CC:90:45:CB:C5:1B:CC:AB:AF:A7:49:34:94:AA:88: B0:F8:3C:8C:02:20:62:C3:58:17:41:49:31:98:29:D9: 99:C8:09:E4:E3:3E:44:42:EA:19:87:B4:5B:88:A5:D4: C1:93:FC:CB:C4:E3 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Aug 10 02:24:42.228 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:F5:55:49:30:DD:BB:6F:20:F8:56:66: 93:9B:B7:3D:93:D8:D5:EF:58:C8:6A:61:2C:27:6E:1B: 5A:72:AD:0A:94:02:20:06:6C:D3:99:25:E9:1B:3F:DB: 37:33:E7:C6:C4:69:34:70:51:CA:42:74:FD:3D:A4:84: 5A:F3:A0:28:BB:FF:E8 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Aug 10 02:24:42.479 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:35:04:53:7E:46:BF:FA:B4:B8:39:2B:8D: CF:C4:88:4A:8D:36:70:38:F4:D3:AA:5F:3E:92:52:86: 24:28:3D:D7:02:20:23:BB:54:F5:60:D6:ED:3E:67:AC: E1:5B:8E:67:D4:53:C6:E4:DD:63:9B:E5:E8:D8:2C:8B: 98:9E:91:1D:83:C6
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-29T16:40:41+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=Thawte TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:25+00:00
Expires
2027-11-02T12:24:25+00:00
Days remaining
398
Serial (hex)
090EE8C5DE5BFA62D2AE2FF7097C4857
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4B:CC:5E:23:4F:E8:1E:DE:4E:AF:88:3A:A1:9C:31:33:5B:0B:26:E8:5E:06:6B:99:45:E4:CB:61:53:EB:20:C2
Certificate extensions & PEM
subjectKeyIdentifier
A5:8C:FE:32:CC:EB:0F:2C:D4:19:C6:08:B8:00:24:88:5D:C3:C5:B7
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.digicert.com/CPS
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2013-08-01T12:00:00+00:00
Expires
2038-01-15T12:00:00+00:00
Days remaining
4125
Serial (hex)
033AF1E6A711A9A0BB2864B11D09FAE5
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:3C:CB:B7:60:31:E5:E0:13:8F:8D:D3:9A:23:F9:DE:47:FF:C3:5E:43:C1:14:4C:EA:27:D4:6A:5A:B1:CB:5F
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
-----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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