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

TLSv1.2

zweb.cubexs.net.pk · 202.63.219.58:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed
The certificate has expired.

Certificate verification failed

Subject
CN=zweb.cubexs.net.pk
Issuer
C=US O=Let's Encrypt CN=R12
Valid from
2025-12-17T07:28:32+00:00
Expires
2026-03-17T07:28:31+00:00
Days remaining
-233
Serial (hex)
0567691409A999F83E13F38A1182D7FDE8E0
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:zweb.cubexs.net.pk

SHA-256 fingerprint

16:64:7C:37:61:4F:66:2F:B3:C4:27:C7:9B:EE:56:51:C6:E0:FC:70:56:6A:31:32:9A:49:0B:CD:AD:A2:C6:E8
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
BE:70:26:35:68:2A:EB:0A:CE:94:6F:14:23:15:32:0E:26:0F:98:D6
authorityKeyIdentifier
00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
authorityInfoAccess
CA Issuers - URI:http://r12.i.lencr.org/
subjectAltName
DNS:zweb.cubexs.net.pk
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://r12.c.lencr.org/97.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 64:11:C4:6C:A4:12:EC:A7:89:1C:A2:02:2E:00:BC:AB: 4F:28:07:D4:1E:35:27:AB:EA:FE:D5:03:C9:7D:CD:F0 Timestamp : Dec 17 08:27:02.230 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:2E:DB:B6:15:F5:36:2A:EE:1D:3C:42:8B: 5A:FF:04:CF:23:21:D1:D2:44:98:C7:ED:E9:F8:38:39: 27:0E:78:4D:02:20:16:56:DB:68:7B:F2:CB:0B:BE:A4: 62:7C:75:E7:52:3B:B9:EA:FC:4D:27:CF:44:15:04:61: 7D:F2:7A:03:F3:0C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D1:6E:A9:A5:68:07:7E:66:35:A0:3F:37:A5:DD:BC:03: A5:3C:41:12:14:D4:88:18:F5:E9:31:B3:23:CB:95:04 Timestamp : Dec 17 08:27:04.467 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:78:CB:E5:43:3E:54:87:E9:49:9E:92:8F: 5D:33:4A:23:2F:87:50:E4:46:12:72:B1:A8:F2:48:34: ED:81:AD:7F:02:21:00:DE:1E:93:BF:96:37:7E:62:F2: 3D:C9:05:77:C2:70:76:56:5E:CD:AC:F1:29:45:98:1C: 80:F1:62:83:67:B8:7A
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-11-05T01:19:25+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=R12
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2024-03-13T00:00:00+00:00
Expires
2027-03-12T23:59:59+00:00
Days remaining
127
Serial (hex)
C212324B70A9B49171DC40F7E285263C
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:1F:CE:77:84:01:68:99:A5:A0:02:03:A9:EF:C8:0F:18:EB:BD:75:58:07:17:ED:C1:55:35:80:93:08:36:EC
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
00:B5:29:F2:2D:8E:6F:31:E8:9B:4C:AD:78:3E:FA:DC:E9:0C:D1:D2
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-----
MIIFBjCCAu6gAwIBAgIRAMISMktwqbSRcdxA9+KFJjwwDQYJKoZIhvcNAQELBQAw
TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMjQwMzEzMDAwMDAw
WhcNMjcwMzEyMjM1OTU5WjAzMQswCQYDVQQGEwJVUzEWMBQGA1UEChMNTGV0J3Mg
RW5jcnlwdDEMMAoGA1UEAxMDUjEyMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB
CgKCAQEA2pgodK2+lP474B7i5Ut1qywSf+2nAzJ+Npfs6DGPpRONC5kuHs0BUT1M
5ShuCVUxqqUiXXL0LQfCTUA83wEjuXg39RplMjTmhnGdBO+ECFu9AhqZ66YBAJpz
kG2Pogeg0JfT2kVhgTU9FPnEwF9q3AuWGrCf4yrqvSrWmMebcas7dA8827JgvlpL
Thjp2ypzXIlhZZ7+7Tymy05v5J75AEaz/xlNKmOzjmbGGIVwx1Blbzt05UiDDwhY
XS0jnV6j/ujbAKHS9OMZTfLuevYnnuXNnC2i8n+cF63vEzc50bTILEHWhsDp7CH4
WRt/uTp8n1wBnWIEwii9Cq08yhDsGwIDAQABo4H4MIH1MA4GA1UdDwEB/wQEAwIB
hjAdBgNVHSUEFjAUBggrBgEFBQcDAgYIKwYBBQUHAwEwEgYDVR0TAQH/BAgwBgEB
/wIBADAdBgNVHQ4EFgQUALUp8i2ObzHom0yteD763OkM0dIwHwYDVR0jBBgwFoAU
ebRZ5nu25eQBc4AIiMgaWPbpm24wMgYIKwYBBQUHAQEEJjAkMCIGCCsGAQUFBzAC
hhZodHRwOi8veDEuaS5sZW5jci5vcmcvMBMGA1UdIAQMMAowCAYGZ4EMAQIBMCcG
A1UdHwQgMB4wHKAaoBiGFmh0dHA6Ly94MS5jLmxlbmNyLm9yZy8wDQYJKoZIhvcN
AQELBQADggIBAI910AnPanZIZTKS3rVEyIV29BWEjAK/duuz8eL5boSoVpHhkkv3
4eoAeEiPdZLj5EZ7G2ArIK+gzhTlRQ1q4FKGpPPaFBSpqV/xbUb5UlAXQOnkHn3m
FVj+qYv87/WeY+Bm4sN3Ox8BhyaU7UAQ3LeZ7N1X01xxQe4wIAAE3JVLUCiHmZL+
qoCUtgYIFPgcg350QMUIWgxPXNGEncT921ne7nluI02V8pLUmClqXOsCwULw+PVO
ZCB7qOMxxMBoCUeL2Ll4oMpOSr5pJCpLN3tRA2s6P1KLs9TSrVhOk+7LX28NMUlI
usQ/nxLJID0RhAeFtPjyOCOscQBA53+NRjSCak7P4A5jX7ppmkcJECL+S0i3kXVU
y5Me5BbrU8973jZNv/ax6+ZK6TM8jWmimL6of6OrX7ZU6E2WqazzsFrLG3o2kySb
zlhSgJ81Cl4tv3SbYiYXnJExKQvzf83DYotox3f0fwv7xln1A2ZLplCb0O+l/AK0
YE0DS2FPxSAHi0iwMfW2nNHJrXcY3LLHD77gRgje4Eveubi2xxa+Nmk/hmhLdIET
iVDFanoCrMVIpQ59XWHkzdFmoHXHBV7oibVjGSO7ULSQ7MJ1Nz51phuDJSgAIU7A
0zrLnOrAj/dfrlEWRhCvAgbuwLZX1A2sjNjXoPOHbsPiy+lO1KF8/XY7
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Internet Security Research Group CN=ISRG Root X1
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2015-06-04T11:04:38+00:00
Expires
2035-06-04T11:04:38+00:00
Days remaining
3133
Serial (hex)
8210CFB0D240E3594463E0BB63828B00
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

96:BC:EC:06:26:49:76:F3:74:60:77:9A:CF:28:C5:A7:CF:E8:A3:C0:AA:E1:1A:8F:FC:EE:05:C0:BD:DF:08:C6
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
-----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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