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

aeso.ca · 99.79.184.178:443

Verified
The certificate expires within 30 days.

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

Subject
C=CA ST=Alberta O=AESO CN=www.aeso.ca
Issuer
C=CA O=Entrust Limited CN=Entrust OV TLS Issuing RSA CA 2
Valid from
2025-10-28T00:00:00+00:00
Expires
2026-10-28T23:59:59+00:00
Days remaining
5
Serial (hex)
93DB3753CEF41CDFC8A4CF9246B12224
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.aeso.ca, DNS:aeso.ca

SHA-256 fingerprint

0E:38:28:D1:A5:A2:CA:BA:8C:AD:4C:02:63:77:64:5C:09:9E:8F:BC:85:A7:CD:12:73:3F:FD:A1:4A:79:5B:BE
Certificate extensions & PEM
authorityKeyIdentifier
17:D1:AF:00:74:F9:55:FB:52:37:D8:84:76:0B:5B:12:8A:50:5A:C5
subjectKeyIdentifier
6F:D1:B0:87:B2:9C:2A:B9:E9:0E:54:4F:85:02:39:FD:D9:1B:62:D1
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/EntrustOVTLSIssuingRSACA2.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/EntrustOVTLSIssuingRSACA2.crt OCSP - URI:http://ocsp.sectigo.com
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Oct 28 16:20:59.750 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A8:28:50:7B:60:32:75:5D:17:FD:5F: 75:FC:C5:21:E2:D0:66:5F:F2:59:AC:C2:D8:59:B4:9E: 67:38:6E:F1:BF:02:21:00:96:E4:8C:04:B3:25:22:E1: B2:17:38:BC:BE:4F:F8:7A:44:80:17:BD:90:2F:92:B6: 00:14:C7:CC:E1:22:5D:B4 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AF:67:88:3B:57:B0:4E:DD:8F:A6:D9:7E:F6:2E:A8:EB: 81:0A:C7:71:60:F0:24:5E:55:D6:0C:2F:E7:85:87:3A Timestamp : Oct 28 16:20:59.975 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E6:6C:96:37:A8:A3:58:01:8C:C7:40: A2:34:B0:AC:D6:6A:CE:93:FE:5B:B7:10:DF:8A:FF:4D: 3B:F3:9B:63:93:02:20:71:B3:94:FF:C1:16:37:D3:90: D4:AE:CF:C9:65:92:BB:D1:4C:A3:B1:B2:1C:42:15:49: 97:94:62:0B:E0:08:EB Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AC:AB:30:70:6C:EB:EC:84:31:F4:13:D2:F4:91:5F:11: 1E:42:24:43:B1:F2:A6:8C:4F:3C:2B:3B:A7:1E:02:C3 Timestamp : Oct 28 16:20:59.724 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:85:D4:93:78:9E:4D:EC:34:F2:AB:21: 22:67:39:79:25:70:BB:E9:54:B0:D3:C9:6D:99:35:E6: 3B:E5:80:1E:FF:02:21:00:9E:28:E9:50:71:53:D4:E4: 66:F6:57:4F:E8:0E:15:A8:B9:71:BB:00:06:F8:11:4C: 01:EE:2A:73:C5:3F:2D:3C
subjectAltName
DNS:www.aeso.ca, DNS:aeso.ca
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-23T02:24:04+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=CA O=Entrust Limited CN=Entrust OV TLS Issuing RSA CA 2
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Valid from
2024-12-11T00:00:00+00:00
Expires
2027-12-10T23:59:59+00:00
Days remaining
413
Serial (hex)
82076AEF563D888D90E75D84A0501C4D
Signature
RSA-SHA384
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

1F:92:7F:37:47:03:06:AF:C3:01:8A:B0:49:E6:BE:1D:3C:0A:3A:45:CA:20:7F:64:F5:32:51:2B:A9:69:EB:94
Certificate extensions & PEM
authorityKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
subjectKeyIdentifier
17:D1:AF:00:74:F9:55:FB:52:37:D8:84:76:0B:5B:12:8A:50:5A:C5
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationRootR46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootR46.p7c OCSP - URI:http://ocsp.sectigo.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root R46
Issuer
C=GB ST=Greater Manchester L=Salford O=Comodo CA Limited CN=AAA Certificate Services
Valid from
2021-03-22T00:00:00+00:00
Expires
2028-12-31T23:59:59+00:00
Days remaining
800
Serial (hex)
E37CA2E9701E339C2F3FB0ED360FF90A
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CE:75:58:0B:C6:79:6D:3B:3E:A2:C3:E7:42:59:D0:D4:03:07:24:08:E9:60:C7:71:39:C2:FB:5A:3D:94:19:E4
Certificate extensions & PEM
authorityKeyIdentifier
A0:11:0A:23:3E:96:F1:07:EC:E2:AF:29:EF:82:A5:7F:D0:30:A4:B4
subjectKeyIdentifier
56:73:58:64:95:F9:92:1A:B0:12:2A:04:62:79:A1:40:15:88:21:49
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.comodoca.com/AAACertificateServices.crl
authorityInfoAccess
OCSP - URI:http://ocsp.comodoca.com
-----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 →