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

wellingtoncdsb.ca · 162.159.136.49:443

Verified

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

Subject
CN=wellingtoncdsb.ca
Issuer
C=US O=Google Trust Services CN=WR1
Valid from
2026-10-30T03:07:48+00:00
Expires
2027-01-28T04:07:38+00:00
Days remaining
78
Serial (hex)
CCFD2488D09A8D210E10E65EC18E7142
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:wellingtoncdsb.ca

SHA-256 fingerprint

88:37:D7:EC:8C:61:EE:3C:80:06:9A:2B:40:52:5F:A7:C2:BD:F5:94:D3:D9:05:6A:BB:0E:96:E8:66:2A:51:E2
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
3E:DC:A8:9C:2C:75:E2:12:5F:46:51:09:BB:7D:39:7F:4D:30:5B:06
authorityKeyIdentifier
66:69:49:D4:DE:2A:9C:91:03:CF:89:0E:24:B8:0E:30:03:6E:88:2E
authorityInfoAccess
CA Issuers - URI:http://i.pki.goog/wr1.crt
subjectAltName
DNS:wellingtoncdsb.ca
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://c.pki.goog/wr1/lmreABxE18k.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 00:1A:5D:1A:1C:2D:93:75:B6:48:55:78:F8:2F:71:A1: AE:6E:EF:39:7D:29:7C:8A:E3:15:7B:CA:DE:E1:A0:1E Timestamp : Oct 30 04:07:49.259 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A5:0B:73:E1:98:3E:24:89:13:24:1E: 5E:D3:34:0E:4C:55:8C:28:3D:5C:F8:08:D7:4D:BD:39: A1:01:46:71:44:02:20:73:63:67:51:79:AF:51:CB:59: 93:43:BB:B0:BC:58:20:4C:50:05:85:03:69:C6:B2:AE: FA:E3:5F:6F:F8:22:6B Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:E8:22:FC:2B:AB:0E:92:EE:D0:E9:FA:D6:96:64:60: 27:76:D0:17:60:E0:89:05:09:C9:23:A1:B0:3F:C3:7F Timestamp : Oct 30 04:07:45.936 2026 GMT Extensions: 00:00:05:00:12:62:D8:F4 Signature : ecdsa-with-SHA256 30:46:02:21:00:BA:33:E5:DC:E7:D5:DC:67:BC:09:41: 2D:9E:13:6A:54:4E:8F:DA:22:02:98:14:B2:8F:D5:1A: 56:F6:0A:3B:FD:02:21:00:BB:0D:BD:50:FA:7A:B1:52: 30:81:A6:A0:C5:23:98:F3:80:3B:6A:BE:8C:3E:0A:AF: 06:92:CC:47:C7:B2:32:05
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-10T19:03:25+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Google Trust Services CN=WR1
Issuer
C=US O=Google Trust Services LLC CN=GTS Root R1
Valid from
2023-12-13T09:00:00+00:00
Expires
2029-02-20T14:00:00+00:00
Days remaining
832
Serial (hex)
7FD9E2C2D2048A0474B627A26D0868A7
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

B1:0B:6F:00:E6:09:50:9E:87:00:F6:D3:46:87:A2:BF:CE:38:EA:05:A8:FD:F1:CD:C4:0C:3A:2A:0D:0D:0E:45
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
66:69:49:D4:DE:2A:9C:91:03:CF:89:0E:24:B8:0E:30:03:6E:88:2E
authorityKeyIdentifier
E4:AF:2B:26:71:1A:2B:48:27:85:2F:52:66:2C:EF:F0:89:13:71:3E
authorityInfoAccess
CA Issuers - URI:http://i.pki.goog/r1.crt
crlDistributionPoints
Full Name: URI:http://c.pki.goog/r/r1.crl
certificatePolicies
Policy: 2.23.140.1.2.1
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Google Trust Services LLC CN=GTS Root R1
Issuer
C=BE O=GlobalSign nv-sa OU=Root CA CN=GlobalSign Root CA
Valid from
2020-06-19T00:00:42+00:00
Expires
2028-01-28T00:00:42+00:00
Days remaining
443
Serial (hex)
77BD0D6CDB36F91AEA210FC4F058D30D
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

3E:E0:27:8D:F7:1F:A3:C1:25:C4:CD:48:7F:01:D7:74:69:4E:6F:C5:7E:0C:D9:4C:24:EF:D7:69:13:39:18:E5
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
E4:AF:2B:26:71:1A:2B:48:27:85:2F:52:66:2C:EF:F0:89:13:71:3E
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.pki.goog/gsr1 CA Issuers - URI:http://pki.goog/gsr1/gsr1.crt
crlDistributionPoints
Full Name: URI:http://crl.pki.goog/gsr1/gsr1.crl
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 1.3.6.1.4.1.11129.2.5.3.2 Policy: 1.3.6.1.4.1.11129.2.5.3.3
-----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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