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

xserver.ne.jp · 175.28.4.236:443

Verified

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

Subject
CN=*.xserver.ne.jp
Issuer
C=JP O=CloudSecure Corporation CN=CloudSecure RSA Domain Validation Secure Server CA 3
Valid from
2026-06-04T00:00:00+00:00
Expires
2026-12-19T23:59:59+00:00
Days remaining
71
Serial (hex)
8F254AD88FBB9EC53CCC4D2AC1CE4DE9
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.xserver.ne.jp, DNS:xserver.ne.jp

SHA-256 fingerprint

82:D3:A2:8F:25:E1:59:A3:3A:FA:85:7A:D6:26:69:62:E1:C4:31:D2:51:03:21:EB:E1:CE:AA:8F:DD:32:A4:D5
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
E8:6B:6B:F6:9D:F9:93:0D:7F:52:48:FF:2E:3D:81:90:11:C3:30:2F
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:*.xserver.ne.jp, DNS:xserver.ne.jp
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Jun 4 12:40:25.560 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:CD:AA:80:3C:BA:6E:0F:8C:EE:12:EB: FF:2E:55:D0:22:4F:77:A1:01:BE:CB:17:F1:2D:EC:03: 78:4F:20:48:61:02:20:15:FE:DC:8D:A8:75:1F:E8:CE: 57:B3:F7:8A:50:36:27:B8:3B:E6:43:EC:BD:36:24:A8: 35:A2:10:FA:B5:C3:3D Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D: E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A Timestamp : Jun 4 12:40:25.594 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:5B:0B:E2:ED:63:0C:AE:89:6B:B0:C2:F7: 02:D7:BB:B3:B6:05:CF:24:2F:BE:86:39:20:A6:8B:C8: B9:4F:94:22:02:20:34:6E:A6:EA:40:0C:D3:58:42:AC: 96:89:2C:F4:41:61:D3:92:B4:42:45:36:7C:34:9B:A6: CA:A1:39:96:B7:B1 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 : Jun 4 12:40:26.139 2026 GMT Extensions: 00:00:05:00:03:36:EE:15 Signature : ecdsa-with-SHA256 30:45:02:21:00:B8:84:72:D9:AA:49:CD:3C:0F:45:94: FD:98:1C:C5:A5:00:A9:12:29:98:5B:2A:E2:1E:39:49: F3:75:2C:8F:2D:02:20:17:06:09:79:B1:BC:D1:CC:F8: E7:81:E7:9C:FD:FD:56:66:99:00:D7:19:60:5A:23:3B: 10:CC:4A:EF:96:0D:75
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-09T16:47:42+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
3138
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
4119
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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