API
This service provide certificate information from hostname: gateway.nhsd.k12.wi.us

Certificate:
Data:
Version: 3 (0x2)
Serial Number:
6e:b6:9d:db:67:a9:6a:fe:0d:4f:e5:14:f2:92:51:ab
Signature Algorithm: ecdsa-with-SHA256
Issuer: C = US, O = Google Trust Services, CN = WE1
Validity
Not Before: Jun 24 22:44:39 2025 GMT
Not After : Sep 22 23:42:20 2025 GMT
Subject: CN = nhsd.k12.wi.us
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (256 bit)
pub:
04:06:80:dd:fa:d3:f5:7e:36:6b:f1:f8:e8:d5:41:
89:79:50:08:92:f8:ec:1d:1b:12:a8:64:8d:6b:c1:
7a:84:23:e0:39:2c:32:45:21:18:30:b9:35:f0:4c:
b7:df:f0:65:09:95:37:3d:b9:27:ba:d9:5e:02:01:
8b:cb:aa:61:fa
ASN1 OID: prime256v1
NIST CURVE: P-256
X509v3 extensions:
X509v3 Key Usage: critical
Digital Signature
X509v3 Extended Key Usage:
TLS Web Server Authentication
X509v3 Basic Constraints: critical
CA:FALSE
X509v3 Subject Key Identifier:
53:00:B6:D7:AA:0F:22:3A:16:D0:91:03:B3:C6:6F:A5:17:87:87:03
X509v3 Authority Key Identifier:
90:77:92:35:67:C4:FF:A8:CC:A9:E6:7B:D9:80:79:7B:CC:93:F9:38
Authority Information Access:
OCSP - URI:http://o.pki.goog/s/we1/brY
CA Issuers - URI:http://i.pki.goog/we1.crt
X509v3 Subject Alternative Name:
DNS:nhsd.k12.wi.us, DNS:*.nhsd.k12.wi.us
X509v3 Certificate Policies:
Policy: 2.23.140.1.2.1
X509v3 CRL Distribution Points:
Full Name:
URI:http://c.pki.goog/we1/6FL0xFPZ9Sk.crl
CT Precertificate SCTs:
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : DD:DC:CA:34:95:D7:E1:16:05:E7:95:32:FA:C7:9F:F8:
3D:1C:50:DF:DB:00:3A:14:12:76:0A:2C:AC:BB:C8:2A
Timestamp : Jun 24 23:44:39.679 2025 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:46:02:21:00:94:10:90:22:09:50:A0:B1:CD:52:80:
32:BB:60:45:07:3F:97:75:24:6D:61:65:24:FF:7F:FC:
E8:38:DB:68:F6:02:21:00:D3:E5:AB:49:1F:BA:56:34:
00:2C:AC:98:9E:6C:60:5A:1A:0B:EA:50:EA:9C:ED:54:
B0:24:EA:23:13:38:66:70
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : AF:18:1A:28:D6:8C:A3:E0:A9:8A:4C:9C:67:AB:09:F8:
BB:BC:22:BA:AE:BC:B1:38:A3:A1:9D:D3:F9:B6:03:0D
Timestamp : Jun 24 23:44:39.922 2025 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:1F:40:16:1F:47:F1:7A:4B:96:6D:93:BE:
ED:CE:17:E8:7D:EB:A5:FD:52:F6:ED:20:0C:B0:09:6D:
81:39:BD:8A:02:20:2D:16:34:40:3B:DD:B5:83:15:18:
25:B7:90:B8:D7:E2:EC:14:D7:97:09:E3:54:15:43:20:
92:0D:C0:FC:6A:BC
Signature Algorithm: ecdsa-with-SHA256
Signature Value:
30:44:02:20:3e:3d:dc:46:23:db:be:76:10:be:9d:30:7e:b2:
75:b3:b8:10:15:db:d4:70:68:39:c2:1f:51:ff:0f:60:51:fc:
02:20:1b:f0:c4:05:ec:74:82:46:de:df:ae:5b:ab:6a:82:8f:
cd:95:2b:98:04:22:14:df:0a:82:bf:ed:92:79:c7:1c
-----BEGIN CERTIFICATE-----
MIIDrDCCA1OgAwIBAgIQbrad22epav4NT+UU8pJRqzAKBggqhkjOPQQDAjA7MQsw
CQYDVQQGEwJVUzEeMBwGA1UEChMVR29vZ2xlIFRydXN0IFNlcnZpY2VzMQwwCgYD
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clkwJQYIKwYBBQUHMAKGGWh0dHA6Ly9pLnBraS5nb29nL3dlMS5jcnQwKwYDVR0R
BCQwIoIObmhzZC5rMTIud2kudXOCECoubmhzZC5rMTIud2kudXMwEwYDVR0gBAww
CjAIBgZngQwBAgEwNgYDVR0fBC8wLTAroCmgJ4YlaHR0cDovL2MucGtpLmdvb2cv
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AJQQkCIJUKCxzVKAMrtgRQc/l3UkbWFlJP9//Og422j2AiEA0+WrSR+6VjQALKyY
nmxgWhoL6lDqnO1UsCTqIxM4ZnAAdQCvGBoo1oyj4KmKTJxnqwn4u7wiuq68sTij
oZ3T+bYDDQAAAZekVFXyAAAEAwBGMEQCIB9AFh9H8XpLlm2Tvu3OF+h966X9Uvbt
IAywCW2BOb2KAiAtFjRAO921gxUYJbeQuNfi7BTXlwnjVBVDIJINwPxqvDAKBggq
hkjOPQQDAgNHADBEAiA+PdxGI9u+dhC+nTB+snWzuBAV29RwaDnCH1H/D2BR/AIg
G/DEBex0gkbe365bq2qCj82VK5gEIhTfCoK/7ZJ5xxw=
-----END CERTIFICATE-----