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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

TLSv1.3

sutter.k12.ca.us · 34.210.195.109:443

Verified

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

Subject
CN=sutter.k12.ca.us
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-09-01T08:14:37+00:00
Expires
2026-11-30T08:14:36+00:00
Days remaining
64
Serial (hex)
06C67D13DDF9B6AB4308B83E7D40EDC833FC
Signature
RSA-SHA256
Public key
RSA 3072

Subject alternative names (SAN)

DNS:sutter.k12.ca.us

SHA-256 fingerprint

D0:56:C0:CD:EE:E2:FA:C2:1A:45:A9:BD:33:53:AD:0A:E3:15:72:32:B3:50:EE:5E:7D:FA:3B:37:20:D6:C8:33
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
BC:8B:21:4A:8B:76:2F:6F:45:82:D3:0C:4B:A3:5E:80:B8:1B:CB:45
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:sutter.k12.ca.us
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/125.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Sep 1 09:13:07.539 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:62:8A:37:65:AF:48:76:A5:D1:B1:63:68: EB:BF:21:E4:33:DB:76:1B:4F:6C:FF:93:04:6D:A0:98: CE:1F:2F:D1:02:21:00:AD:79:4C:9D:FD:9E:6E:0A:BB: 8F:1F:E4:66:E3:1E:DE:FD:E8:58:D6:6F:83:82:20:64: 6A:E3:48:8D:DC:C8:0C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 6C:FE:50:19:43:A8:5E:A9:16:BC:52:D1:33:E4:DC:C9: 1E:F1:41:1C:7D:25:84:20:D1:73:80:9E:18:18:EB:3A Timestamp : Sep 1 09:13:08.032 2026 GMT Extensions: 00:00:05:00:2B:72:81:F1 Signature : ecdsa-with-SHA256 30:45:02:21:00:ED:B5:A9:42:46:78:43:41:CA:59:44: 1F:20:51:98:8B:DC:12:92:81:58:41:AD:75:48:CC:EC: 0D:35:4B:69:F0:02:20:43:D5:66:76:37:7B:2E:23:54: 2B:F6:2A:57:C6:E2:F2:4D:AC:DE:C2:4B:A1:06:B3:33: 14:46:44:77:59:DD:15
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-27T07:51:57+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
706
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2167
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----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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