# Certificate of `www.stkgroup.jp`

{
    "serial": "D283E3E838EB608C13E980F685757CF4",
    "OCSP_serial": null,
    "OCSP_cert_status": null,
    "OCSP_this_update": null,
    "OCSP_next_update": null,
    "domainName": "www.stkgroup.jp",
    "port": 443,
    "subjectAltName": "DNS:stkgroup.jp, DNS:*.stkgroup.jp",
    "is_valid": true,
    "CA": "Google Trust Services",
    "updated_at": "2026/09/28 16:50:50",
    "expires_at": "2026/12/27 17:48:28",
    "today": "2026/09/28 23:27:32",
    "UTC": {
        "updated_at": "2026-09-28T07:50:50Z",
        "expires_at": "2026-12-27T08:48:28Z",
        "today": "2026-09-28T14:27:32Z"
    },
    "remaining_days": 89
}

# OCSP response of `www.stkgroup.jp` from OCSP Stapling

CONNECTED(00000003)
OCSP response: no response sent
---
Certificate chain
 0 s:CN=stkgroup.jp
   i:C=US, O=Google Trust Services, CN=WE1
   a:PKEY: EC, (prime256v1); sigalg: ecdsa-with-SHA256
   v:NotBefore: Sep 28 07:50:50 2026 GMT; NotAfter: Dec 27 08:48:28 2026 GMT
 1 s:C=US, O=Google Trust Services, CN=WE1
   i:C=US, O=Google Trust Services LLC, CN=GTS Root R4
   a:PKEY: EC, (prime256v1); sigalg: ecdsa-with-SHA384
   v:NotBefore: Dec 13 09:00:00 2023 GMT; NotAfter: Feb 20 14:00:00 2029 GMT
 2 s:C=US, O=Google Trust Services LLC, CN=GTS Root R4
   i:C=BE, O=GlobalSign nv-sa, OU=Root CA, CN=GlobalSign Root CA
   a:PKEY: EC, (secp384r1); sigalg: sha256WithRSAEncryption
   v:NotBefore: Nov 15 03:43:21 2023 GMT; NotAfter: Jan 28 00:00:42 2028 GMT
---
Server certificate
-----BEGIN CERTIFICATE-----
MIIDezCCAyCgAwIBAgIRANKD4+g462CME+mA9oV1fPQwCgYIKoZIzj0EAwIwOzEL
MAkGA1UEBhMCVVMxHjAcBgNVBAoTFUdvb2dsZSBUcnVzdCBTZXJ2aWNlczEMMAoG
A1UEAxMDV0UxMB4XDTI2MDkyODA3NTA1MFoXDTI2MTIyNzA4NDgyOFowFjEUMBIG
A1UEAxMLc3RrZ3JvdXAuanAwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAARusuyw
SB9jSd0p/8ZeQ73d8xJYffB1aOqHiScy0FwDvQ8zd2OAQwdEZZm94oWwihVLdqtz
eq8RknH5EXIhfKDao4ICKDCCAiQwDgYDVR0PAQH/BAQDAgeAMBMGA1UdJQQMMAoG
CCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFCJxARJpVSDpWZE3iv8j
7vAVLwvWMB8GA1UdIwQYMBaAFJB3kjVnxP+ozKnme9mAeXvMk/k4MDUGCCsGAQUF
BwEBBCkwJzAlBggrBgEFBQcwAoYZaHR0cDovL2kucGtpLmdvb2cvd2UxLmNydDAl
BgNVHREEHjAcggtzdGtncm91cC5qcIINKi5zdGtncm91cC5qcDATBgNVHSAEDDAK
MAgGBmeBDAECATA2BgNVHR8ELzAtMCugKaAnhiVodHRwOi8vYy5wa2kuZ29vZy93
ZTEvdy1vVjNOQmhjUFEuY3JsMIIBAgYKKwYBBAHWeQIEAgSB8wSB8ADuAHUA1219
ENGn9XfCx+lf1wC/+YLJM1pl4dCzAXMXwMjFaXcAAAGg5zWzxQAABAMARjBEAiBd
3AEchadUJeFgNwFWklT+UtuvJI0o8Qs1SgszHOaY3gIgWBu5pedN27MayQYcUbsF
ZUNIlf8jAuh3tRWJQDgvEX8AdQDt2uuBXGMhNEm0e+UHeQWr0NkxR8J6xRRrO8WO
Q+m2xwAAAaDnNbRsAAAEAwBGMEQCIDVD+CiQ1jUYoNdS4SM8CrIreeNc6HkrrgCL
/115oyFgAiBUS4ku1SIN4UnzCmIIdKeZXoA23KiTURwomjnAFsG0fDAKBggqhkjO
PQQDAgNJADBGAiEA5ouXP4OpYeaX/TusGRdxXXIeOiY4EXf+0vkl/6l/kocCIQCb
9aHojJYRiWNbErP9fSk+BKu6W5m3+chwhH0nl5VJYA==
-----END CERTIFICATE-----
subject=CN=stkgroup.jp
issuer=C=US, O=Google Trust Services, CN=WE1
---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: ecdsa_secp256r1_sha256
Negotiated TLS1.3 group: X25519MLKEM768
---
SSL handshake has read 3872 bytes and written 1646 bytes
Verification: OK
---
New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384
Protocol: TLSv1.3
Server public key is 256 bit
This TLS version forbids renegotiation.
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 0 (ok)
---

Welcome to OCSP Checker.

# Certificate of `www.stkgroup.jp`

# OCSP response of `www.stkgroup.jp` from OCSP Stapling

# OCSP response of `www.stkgroup.jp` from OCSP responder (Let's Encrypt)

Welcome to OCSP Checker.

# Certificate of www.stkgroup.jp

# OCSP response of www.stkgroup.jp from OCSP Stapling

# OCSP response of www.stkgroup.jp from OCSP responder (Let's Encrypt)

# Certificate of `www.stkgroup.jp`

# OCSP response of `www.stkgroup.jp` from OCSP Stapling

# OCSP response of `www.stkgroup.jp` from OCSP responder (Let's Encrypt)