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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

so-net.ne.jp · 75.2.3.28:443

Verified

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

Subject
C=JP ST=Tokyo L=Minato Ku O=Sony Network Communications Inc. CN=*.so-net.ne.jp
Issuer
C=JP O=Cybertrust Japan Co., Ltd. CN=Cybertrust Japan SureServer CA G4
Valid from
2026-08-16T22:57:19+00:00
Expires
2027-03-03T14:59:00+00:00
Days remaining
141
Serial (hex)
34FCA484CDDE8F2E75DC30173567034D5DE3598C
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.so-net.ne.jp, DNS:so-net.ne.jp

SHA-256 fingerprint

6E:71:37:45:D8:45:8C:02:FA:39:09:32:C9:E2:DD:1C:30:AD:76:37:4C:19:64:35:A6:80:E7:45:A8:8B:08:08
Certificate extensions & PEM
basicConstraints
CA:FALSE
certificatePolicies
Policy: 2.23.140.1.2.2 Policy: 1.2.392.200081.1.23.1 CPS: https://www.cybertrust.ne.jp/ssl/repository/index.html
subjectAltName
DNS:*.so-net.ne.jp, DNS:so-net.ne.jp
authorityInfoAccess
OCSP - URI:http://ssocsp.cybertrust.ne.jp/OcspServer CA Issuers - URI:http://crl.cybertrust.ne.jp/SureServer/ovcag4/ovcag4.crt
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
authorityKeyIdentifier
62:A7:D2:DA:DE:85:B6:92:F1:85:BC:F6:E8:95:9D:75:A0:FA:4E:1F
crlDistributionPoints
Full Name: URI:http://crl.cybertrust.ne.jp/SureServer/ovcag4/cdp.crl
subjectKeyIdentifier
CF:6B:23:9C:0C:82:E3:8F:C5:41:54:8D:0E:99:6B:4F:41:2B:71:0A
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 : Aug 16 23:13:10.759 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:9D:7C:7A:65:26:88:06:C6:0F:5D:79: E7:AF:41:49:00:1B:BE:AA:3B:A4:71:95:A6:42:74:B5: DE:66:9E:59:E2:02:21:00:8E:AA:85:5D:37:F7:4F:6E: D1:58:E5:D8:7B:40:F9:C2:A6:79:F5:F8:8F:17:27:0E: 96:0D:2B:A4:DE:2A:04:31 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 16 23:13:11.478 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:3E:F4:92:DC:61:B3:C0:95:3C:89:4B:38: 53:C6:80:A9:BB:D1:7A:3C:BB:8C:37:44:C7:31:9A:D7: 6C:E4:0E:23:02:20:5B:CF:E6:E7:1C:DB:46:B7:B5:78: F2:6A:C2:1D:99:40:3E:C4:D9:1E:7E:F6:3E:07:11:03: CC:DC:FD:A5:36:71 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 16 23:13:13.459 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:B2:A8:82:68:7E:7B:D5:97:61:DF:53: F6:E4:1A:BF:51:AC:FF:90:33:CA:65:89:71:04:EB:03: 02:F3:97:F0:C5:02:20:65:EA:62:F5:2C:42:A9:67:A3: F6:39:88:B5:64:3A:46:99:6E:95:EB:BF:DE:A0:74:66: 13:6D:BA:25:C3:29:13
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-12T18:31:57+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=JP O=Cybertrust Japan Co., Ltd. CN=Cybertrust Japan SureServer CA G4
Issuer
C=JP O=SECOM Trust Systems CO.,LTD. OU=Security Communication RootCA2
Valid from
2023-12-13T05:57:30+00:00
Expires
2029-05-29T05:00:39+00:00
Days remaining
959
Serial (hex)
22B9B1A074641857F7A01332DB42B9EC
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

83:46:92:2C:B8:73:0B:B6:AE:71:AB:03:BF:C4:24:62:F4:16:04:23:D9:07:9B:E6:43:85:62:1A:C5:87:76:72
Certificate extensions & PEM
subjectKeyIdentifier
62:A7:D2:DA:DE:85:B6:92:F1:85:BC:F6:E8:95:9D:75:A0:FA:4E:1F
authorityKeyIdentifier
0A:85:A9:77:65:05:98:7C:40:81:F8:0F:97:2C:38:F1:0A:EC:3C:CF
basicConstraints
CA:TRUE, pathlen:0
keyUsage
Certificate Sign, CRL Sign
crlDistributionPoints
Full Name: URI:http://repository.secomtrust.net/SC-Root2/SCRoot2CRL.crl
certificatePolicies
Policy: 2.23.140.1.2.2 Policy: 1.2.392.200091.100.901.4 CPS: https://repository.secomtrust.net/SC-Root2/
authorityInfoAccess
OCSP - URI:http://scrootca2.ocsp.secomtrust.net CA Issuers - URI:http://repository.secomtrust.net/SC-Root2/SCRoot2ca.cer
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=JP O=SECOM Trust Systems CO.,LTD. OU=Security Communication RootCA2
Issuer
C=JP O=SECOM Trust Systems CO.,LTD. OU=Security Communication RootCA2
Valid from
2009-05-29T05:00:39+00:00
Expires
2029-05-29T05:00:39+00:00
Days remaining
959
Serial (hex)
0
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

51:3B:2C:EC:B8:10:D4:CD:E5:DD:85:39:1A:DF:C6:C2:DD:60:D8:7B:B7:36:D2:B5:21:48:4A:A4:7A:0E:BE:F6
Certificate extensions & PEM
subjectKeyIdentifier
0A:85:A9:77:65:05:98:7C:40:81:F8:0F:97:2C:38:F1:0A:EC:3C:CF
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
-----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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