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

TLSv1.3

kakaocorp.com · 121.53.221.97:443

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=kakaocorp.com
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=Thawte TLS RSA CA G1
Valid from
2026-09-01T00:00:00+00:00
Expires
2027-03-18T23:59:59+00:00
Days remaining
170
Serial (hex)
022BA33A0CC2C9EA1ACB7ACB5B41D3C3
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:kakaocorp.com, DNS:*.kakaocorp.com

SHA-256 fingerprint

D4:5D:DD:7A:7B:DE:00:67:1F:DA:AB:9F:A1:BF:1E:6B:AF:1A:7F:50:E5:BD:1E:BB:F3:5B:DA:77:0F:54:1D:5F
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
05:0F:B1:9A:25:14:59:07:9B:CA:28:81:5A:14:6D:2E:D6:CE:B1:19
subjectAltName
DNS:kakaocorp.com, DNS:*.kakaocorp.com
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 : Sep 1 07:45:23.451 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:41:DB:BC:30:28:39:41:6D:C5:23:74:5D: 63:BD:97:85:C5:73:E6:B8:56:B6:C7:94:4F:0D:A5:D0: CF:AC:58:0C:02:21:00:C0:0D:0E:C8:A5:44:9C:EA:0C: 0D:0F:94:ED:29:5E:EB:B9:25:C4:8C:12:59:77:57:C7: 03:1B:9F:80:FD:A5:8F 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 : Sep 1 07:45:23.448 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:82:79:D3:60:0A:D1:CA:1B:16:D8:E7: 68:B1:29:5A:6C:F7:55:54:8D:E3:C8:6F:17:E6:AB:2F: 00:69:21:46:89:02:20:57:7D:83:17:89:B9:B6:75:6C: DC:CA:40:DE:DA:A0:9D:82:BA:BF:B3:C8:B7:A6:27:C0: BE:C8:48:74:80:74:E3 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Sep 1 07:45:23.508 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:51:D2:71:11:A2:10:F0:7B:17:6A:EE:82: 3C:09:18:EE:98:BA:D3:B6:9F:BB:BE:CE:51:13:56:01: 15:39:F9:09:02:20:24:CA:A5:FD:0D:88:77:78:1A:03: 11:4B:EE:90:92:88:E5:49:F9:02:6B:07:2A:3B:8E:73: 3C:31:FE:BC:44:20
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-29T18:10:32+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.

View certificate JSON

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