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

star-domain.jp · 162.43.112.245:443

Verified

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

Subject
CN=www.star-domain.jp
Issuer
C=JP O=CloudSecure Corporation CN=CloudSecure RSA Domain Validation Secure Server CA 3
Valid from
2025-12-02T00:00:00+00:00
Expires
2027-01-02T23:59:59+00:00
Days remaining
55
Serial (hex)
2F06E4C7E03CE766743D69B50B411E6D
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.star-domain.jp, DNS:star-domain.jp

SHA-256 fingerprint

CC:0C:33:72:9E:84:C5:5C:59:1D:A9:6A:14:A1:F3:53:3D:94:E6:DA:1B:BC:D8:A6:3E:DE:68:5C:8A:72:DB:4C
Certificate extensions & PEM
authorityKeyIdentifier
01:56:13:8E:EF:27:4B:D1:AF:F2:00:29:5E:1C:CD:73:0C:55:7F:C6
subjectKeyIdentifier
67:C2:35:5C:A1:A7:7D:0C:8A:04:81:4E:65:80:2C:A5:0D:69:41:C2
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/CloudSecureRSADomainValidationSecureServerCA3.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:www.star-domain.jp, DNS:star-domain.jp
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Dec 2 10:45:22.331 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:F7:CC:10:D9:9E:2A:89:8D:2E:04:49: FE:C5:E8:41:1F:51:3F:75:D8:68:14:CB:1D:9D:73:DB: A9:2A:03:EF:12:02:20:15:EB:D5:82:B3:08:50:21:8E: 5A:69:36:0E:A2:AB:C6:93:66:2D:27:FA:96:3A:23:61: C0:ED:02:FE:EE:4E:71 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Dec 2 10:45:22.185 2025 GMT Extensions: 00:00:05:00:00:43:D1:32 Signature : ecdsa-with-SHA256 30:45:02:21:00:93:0A:68:DE:44:8C:60:83:BE:79:78: 97:F7:72:CA:64:6B:D7:BE:BC:2E:18:8C:C1:1C:08:F9: 80:AD:6D:29:DA:02:20:53:72:84:70:B3:AF:C9:3A:50: 07:72:91:F6:C8:E9:CA:48:DF:EE:1E:C8:0D:69:19:A2: 78:5A:08:1A:7B:DE:2B Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Dec 2 10:45:22.650 2025 GMT Extensions: 00:00:05:00:00:00:3A:9F Signature : ecdsa-with-SHA256 30:45:02:20:17:7C:7C:E0:71:31:2D:C2:91:14:5F:E1: 63:5A:73:A2:22:BE:DC:1C:59:2F:B3:04:88:2A:F3:C8: 16:9A:8A:3F:02:21:00:8F:0F:30:B3:E6:EA:C3:61:EC: E0:53:A0:0F:34:68:35:D5:E5:AA:D8:CC:7F:44:00:F6: 17:72:BB:00:D5:D3:47
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-11-08T05:39:55+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=JP O=CloudSecure Corporation CN=CloudSecure RSA Domain Validation Secure Server CA 3
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2025-05-14T00:00:00+00:00
Expires
2035-05-13T23:59:59+00:00
Days remaining
3108
Serial (hex)
FCF95E9A3EE2C31674C7AAB07E070BA9
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

A9:9E:28:9A:72:12:4F:EC:D6:35:D8:37:2F:55:EC:C0:82:C1:30:26:1D:E3:2A:CD:3F:58:C7:8B:95:FE:8B:C7
Certificate extensions & PEM
authorityKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
subjectKeyIdentifier
01:56:13:8E:EF:27:4B:D1:AF:F2:00:29:5E:1C:CD:73:0C:55:7F:C6
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationRootR46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootR46.p7c OCSP - URI:http://ocsp.sectigo.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust RSA Certification Authority
Valid from
2021-03-22T00:00:00+00:00
Expires
2038-01-18T23:59:59+00:00
Days remaining
4089
Serial (hex)
D27FBBC1DE359E5216AD6149586099C4
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

92:F3:51:BF:3D:54:16:4D:FA:8D:D8:F9:E1:13:9D:31:50:34:97:86:48:5D:2B:9E:EC:D0:0E:29:71:C1:E6:C5
Certificate extensions & PEM
authorityKeyIdentifier
53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB
subjectKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.usertrust.com/USERTrustRSACertificationAuthority.crl
authorityInfoAccess
OCSP - URI:http://ocsp.usertrust.com
-----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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