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

gmo.jp · 104.19.145.41:443

Verified

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

Subject
CN=*.gmo.jp
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R3 DV TLS CA 2020
Valid from
2026-05-14T01:18:04+00:00
Expires
2026-11-29T01:18:04+00:00
Days remaining
64
Serial (hex)
14045458726E4FE81139FC9F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.gmo.jp, DNS:gmo.jp

SHA-256 fingerprint

1A:F6:74:53:6B:F5:57:40:89:E6:6C:4C:65:F6:A7:BF:10:18:6D:9A:5E:EA:92:64:3A:7E:BD:41:96:9E:00:D4
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr3dvtlsca2020.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr3dvtlsca2020
certificatePolicies
Policy: 1.3.6.1.4.1.4146.1.10 CPS: https://www.globalsign.com/repository/ Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr3dvtlsca2020.crl
subjectAltName
DNS:*.gmo.jp, DNS:gmo.jp
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityKeyIdentifier
0D:98:C0:73:7F:AB:BD:BD:D9:47:4B:49:AD:0A:4A:0C:AC:3E:C7:7C
subjectKeyIdentifier
3D:82:C1:D3:FC:82:F5:33:D5:23:1C:71:5E:5D:02:52:E7:1B:E4:BB
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : May 14 01:18:07.454 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:6D:D0:B0:39:EA:3B:F6:CB:EE:A2:4A:A7: 05:F0:3F:09:1E:9A:AF:5B:49:B8:9D:28:9B:E2:D2:7E: C1:B5:33:A4:02:20:04:3A:03:4C:F8:0D:E6:BC:48:64: A1:BF:CE:34:80:D0:68:BE:AE:45:D3:13:CE:7B:74:72: 50:E4:02:3F:35:A7 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : May 14 01:18:07.368 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:EA:76:B3:D2:EA:A7:12:03:13:8D:3F: FC:80:A5:00:CA:C6:D7:1D:CC:E2:D7:7C:63:65:1F:40: FB:81:27:6E:9F:02:21:00:84:EA:9F:5A:03:A3:76:88: 55:0A:F4:34:87:9D:74:A7:EE:0A:CC:D6:04:F3:80:AD: 7D:5B:93:FE:7D:6B:5A:2A 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 : May 14 01:18:07.192 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:D7:E1:3E:3F:8C:09:8E:94:84:FA:A8: 9D:94:ED:83:A4:23:79:52:22:21:3A:EC:32:03:E9:46: 35:DF:F2:20:30:02:21:00:A7:A1:AB:40:4E:DE:B8:AD: 54:88:2E:65:6F:69:D6:00:E0:B3:07:68:9B:FE:83:29: B9:DD:0D:E5:EF:48:2D:43
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-25T09:35:43+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R3 DV TLS CA 2020
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2020-07-28T00:00:00+00:00
Expires
2029-03-18T00:00:00+00:00
Days remaining
904
Serial (hex)
77BD0E0742D5D9E9D049D774D02A6F9A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

76:25:38:43:95:09:C4:11:C4:37:D3:C5:67:56:3E:13:78:67:12:81:FC:4A:14:64:AD:D0:31:87:08:43:67:6E
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
0D:98:C0:73:7F:AB:BD:BD:D9:47:4B:49:AD:0A:4A:0C:AC:3E:C7:7C
authorityKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
authorityInfoAccess
OCSP - URI:http://ocsp2.globalsign.com/rootr3 CA Issuers - URI:http://secure.globalsign.com/cacert/root-r3.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root-r3.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Issuer
C=BE O=GlobalSign nv-sa OU=Root CA CN=GlobalSign Root CA
Valid from
2018-09-19T00:00:00+00:00
Expires
2028-01-28T12:00:00+00:00
Days remaining
490
Serial (hex)
01EE5F169DFF97352B6465D66A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:5E:EC:78:BC:61:21:50:44:A0:37:96:56:AA:2D:5D:B5:E4:2F:76:CB:70:B8:D1:4C:20:77:AA:94:3D:4E:BB
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
authorityKeyIdentifier
60:7B:66:1A:45:0D:97:CA:89:50:2F:7D:04:CD:34:A8:FF:FC:FD:4B
authorityInfoAccess
OCSP - URI:http://ocsp.globalsign.com/rootr1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----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

Registration / WHOIS →DNS records →