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

usb.edu.co · 84.32.84.124:443

Verified

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

Subject
C=CO ST=Bogota L=BOGOTA O=UNIVERSIDAD DE SAN BUENAVENTURA CN=*.usb.edu.co
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-07-28T00:00:00+00:00
Expires
2027-02-11T23:59:59+00:00
Days remaining
133
Serial (hex)
0ECE5E932C0B9B8E3C7BF562567C6C3A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.usb.edu.co, DNS:usb.edu.co

SHA-256 fingerprint

00:EF:71:DA:81:B9:F1:73:11:CE:D2:D3:B7:CB:DA:35:A2:A6:A8:28:92:E3:B4:AE:54:73:C3:B3:FD:78:B7:3C
Certificate extensions & PEM
authorityKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
43:48:B3:0B:6E:63:22:1C:81:B4:55:F0:E5:C3:5A:E6:BB:9B:8B:38
subjectAltName
DNS:*.usb.edu.co, DNS:usb.edu.co
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Jul 28 20:02:17.244 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FD:68:3E:2F:53:45:D9:16:D7:6C:2D: 30:E9:ED:14:B1:F4:C3:3D:24:5F:4B:D8:21:AF:BF:C9: 59:E2:5B:4E:92:02:20:51:03:C6:DE:A5:FC:38:5F:3E: 8B:CA:7A:4B:6F:59:36:0C:72:CA:09:1F:98:76:96:75: 11:44:F6:F5:39:43:57 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Jul 28 20:02:17.236 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:C9:B0:B8:C7:73:EA:56:E1:11:49:CD: 4A:D3:AD:D2:38:B3:D8:70:16:01:28:17:81:B2:EC:5A: 09:9E:14:31:11:02:21:00:D4:A1:AA:C3:4C:C3:88:BF: 7E:1C:E9:D7:DA:62:B7:3F:9B:71:83:71:4B:52:5B:09: 66:46:8E:98:34:BF:0A:57 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Jul 28 20:02:17.320 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:EE:CD:54:1B:2F:7C:D1:EC:E6:EE:31: F1:BF:70:D5:7F:5C:4A:AD:28:32:54:B7:74:10:B0:1D: A2:6E:63:FB:F5:02:21:00:A9:26:F2:5A:65:61:26:83: B6:8A:97:8A:AD:9F:88:65:79:25:D6:0F:1B:FB:6A:98: BE:3D:C3:5D:B5:B5:37:A9
-----BEGIN CERTIFICATE-----
MIIG4TCCBcmgAwIBAgIQDs5ekywLm448e/ViVnxsOjANBgkqhkiG9w0BAQsFADBZ
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMTMwMQYDVQQDEypE
aWdpQ2VydCBHbG9iYWwgRzIgVExTIFJTQSBTSEEyNTYgMjAyMCBDQTEwHhcNMjYw
NzI4MDAwMDAwWhcNMjcwMjExMjM1OTU5WjBwMQswCQYDVQQGEwJDTzEPMA0GA1UE
CBMGQm9nb3RhMQ8wDQYDVQQHEwZCT0dPVEExKDAmBgNVBAoTH1VOSVZFUlNJREFE
IERFIFNBTiBCVUVOQVZFTlRVUkExFTATBgNVBAMMDCoudXNiLmVkdS5jbzCCASIw
DQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANoLGsPX+Ufxl0TQZe1ykyfzViAp
/UwAMvKoI3RdU6Bzh2IAAlM7GdzostpOcPTz0Ab5FnavMKK75+Xz0J6u9Hydtu/F
Z/apWC8bBxw75f3ab8WjyUgCNg8KDrrXWyiE9l3ilTTIH+B/D7b9BbLTqrvucZWV
RL5mlgWKPOv5oK/6cwCKJFi5CJCo0ttOctVXc0hH1rzrAUksri1t5UdbktqhhDT4
RQus/QUkxcBLQ3vtH9hA0JQ4axgs9A+dqLITmkEsOp7kbjO9MZLx34F5/TbwVp0/
KdCq5r3baYGuj7vYM8StxocAbxGoE3/DtQzZr2s7QUv92m1UFhwSDeLm8w8CAwEA
AaOCA4wwggOIMB8GA1UdIwQYMBaAFHSFgMBmx9833s+9KTeqAx2+7c0XMB0GA1Ud
DgQWBBRDSLMLbmMiHIG0VfDlw1rmu5uLODAjBgNVHREEHDAaggwqLnVzYi5lZHUu
Y2+CCnVzYi5lZHUuY28wPgYDVR0gBDcwNTAzBgZngQwBAgIwKTAnBggrBgEFBQcC
ARYbaHR0cDovL3d3dy5kaWdpY2VydC5jb20vQ1BTMA4GA1UdDwEB/wQEAwIFoDAT
BgNVHSUEDDAKBggrBgEFBQcDATCBnwYDVR0fBIGXMIGUMEigRqBEhkJodHRwOi8v
Y3JsMy5kaWdpY2VydC5jb20vRGlnaUNlcnRHbG9iYWxHMlRMU1JTQVNIQTI1NjIw
MjBDQTEtMS5jcmwwSKBGoESGQmh0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNvbS9EaWdp
Q2VydEdsb2JhbEcyVExTUlNBU0hBMjU2MjAyMENBMS0xLmNybDCBhwYIKwYBBQUH
AQEEezB5MCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2VydC5jb20wUQYI
KwYBBQUHMAKGRWh0dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEds
b2JhbEcyVExTUlNBU0hBMjU2MjAyMENBMS0xLmNydDAMBgNVHRMBAf8EAjAAMIIB
gAYKKwYBBAHWeQIEAgSCAXAEggFsAWoAdgBMY9yY5Zwdq4j2Hoo93q6Pq0SjN3tf
m5TD+6Gc/MG+JgAAAZ+qUiIcAAAEAwBHMEUCIQD9aD4vU0XZFtdsLTDp7RSx9MM9
JF9L2CGvv8lZ4ltOkgIgUQPG3qX8OF8+i8p6S29ZNgxyygkfmHaWdRFE9vU5Q1cA
dwDW1Y2p0BdT82pKoMdXSQKv68fcLNOM2fdkyAyJGR6fAgAAAZ+qUiIUAAAEAwBI
MEYCIQDJsLjHc+pW4RFJzUrTrdI4s9hwFgEoF4Gy7FoJnhQxEQIhANShqsNMw4i/
fhzp19pitz+bcYNxS1JbCWZGjpg0vwpXAHcARMK9DOkUDmSlyUoBkwpaobs1lw4A
7hEWiWgqHETXtWYAAAGfqlIiaAAABAMASDBGAiEA7s1UGy980ezm7jHxv3DVf1xK
rSgyVLd0ELAdom5j+/UCIQCpJvJaZWEmg7aKl4qtn4hleSXWDxv7api+PcNdtbU3
qTANBgkqhkiG9w0BAQsFAAOCAQEABOYXu5dcDSwYS9eeYaiQ6N+muzPGtrSonZNj
twlMiv0+tU24azSOcVSIcee3COiVZ+O8yxanQ582WzkEqshh5eVx8aZklW0408kB
m05bFr+gOY6LR/ZhMdblKF15nG/MOFPUOiyiF/TgirqsbNQizptOjRrPjzaBTqvy
ihF+2WT8FRVStx8iLUJePdW/ze/+huCQe0N1KfIHgcwEJwppu3YiCipdZQcy7ii2
JVrerqMBoz2IZAGCXqN/gt+x3UsTpehUBMsTlO/8XQRXKGqnpZDwqgvRo4hYo9XO
BlcAJd7fTWVqmFB+wz421xLxb9bUGaLm1DX8IQ62SPTlHtzCtg==
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-01T05:29:53+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2021-03-30T00:00:00+00:00
Expires
2031-03-29T23:59:59+00:00
Days remaining
1640
Serial (hex)
0CF5BD062B5602F47AB8502C23CCF066
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C8:02:5F:9F:C6:5F:DF:C9:5B:3C:A8:CC:78:67:B9:A5:87:B5:27:79:73:95:79:17:46:3F:C8:13:D0:B6:25:A9
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalRootG2.crt
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.2.1 Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.2.3
-----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

Registration / WHOIS →DNS records →