THE CERTIFICATE BEHIND THE CONNECTION

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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

ns1.simbanetwork.com · 116.203.121.168:443

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: C=US O=Unspecified CN=ns-de.simbanet.co.tz emailAddress=root@ns-de.simbanet.co.tz
Issuer: C=US O=Unspecified OU=ca-7856610273697874787 CN=ns-de.simbanet.co.tz emailAddress=root@ns-de.simbanet.co.tz
Valid from: 2022-12-28T04:46:49+00:00
Expires: 2023-12-28T04:46:49+00:00
Days remaining: -1010
Serial (hex): 17D9BEC5D3AA13FC
Signature: RSA-SHA256
Public key: RSA 2048

Subject alternative names (SAN)

DNS:ns-de.simbanet.co.tz

SHA-256 fingerprint

D4:4B:12:59:E7:41:66:C6:FA:F5:A4:CD:12:7A:03:6C:E5:CC:DE:53:03:D4:6F:1C:01:12:EE:38:67:55:54:1B

Certificate extensions & PEM

keyUsage: Digital Signature, Key Encipherment
extendedKeyUsage: TLS Web Server Authentication
basicConstraints: CA:FALSE
subjectAltName: DNS:ns-de.simbanet.co.tz
authorityKeyIdentifier: 15:29:20:EB:5B:14:E1:E2:78:8B:9F:53:B5:23:BB:B8:07:84:B0:05

-----BEGIN CERTIFICATE-----
MIIE8DCCAtigAwIBAgIIF9m+xdOqE/wwDQYJKoZIhvcNAQELBQAwgY0xCzAJBgNV
BAYTAlVTMRQwEgYDVQQKDAtVbnNwZWNpZmllZDEfMB0GA1UECwwWY2EtNzg1NjYx
MDI3MzY5Nzg3NDc4NzEdMBsGA1UEAwwUbnMtZGUuc2ltYmFuZXQuY28udHoxKDAm
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c6endXXI4+Rv5aQQRqwuw9b19rkBjoZsAqBgy27dxH79D29JCj2O0y5C2a5VoEf3
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BgNVHQ8BAf8EBAMCBaAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwCQYDVR0TBAIwADAf
BgNVHREEGDAWghRucy1kZS5zaW1iYW5ldC5jby50ejAfBgNVHSMEGDAWgBQVKSDr
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huF0u9qFdJEsKO5GNn/OafxTaGZLuny5Q5QQCykjXHLc4mDgNcmKuw6VSS5rJ7KM
tQiX10qdJY3LJ0tRipx9S3/HxEx9YIJTPPeCEPg5EOGUE2eYMFALxq6meflyJbVW
5SNXbi3SeM47F3AbYjvTjrCVvmg9MCIzM2pWVB+uHTx/kYHFA9CE2BGrIUUmsSK4
dTnzCkBqKvJ3RxLgbjlGprPghPs=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-02T15:31:13+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject: C=US O=Unspecified OU=ca-7856610273697874787 CN=ns-de.simbanet.co.tz emailAddress=root@ns-de.simbanet.co.tz
Issuer: C=US O=Unspecified OU=ca-7856610273697874787 CN=ns-de.simbanet.co.tz emailAddress=root@ns-de.simbanet.co.tz
Valid from: 2022-12-28T04:46:49+00:00
Expires: 2023-12-28T04:46:49+00:00
Days remaining: -1010
Serial (hex): 6D08496AF6724363
Signature: RSA-SHA256
Public key: RSA 4096

Subject alternative names (SAN)

DNS:ns-de.simbanet.co.tz

SHA-256 fingerprint

63:C4:23:FE:DE:AF:08:74:39:DE:4A:18:C2:4F:ED:F9:E8:9C:3F:8D:8D:CD:B8:87:EB:55:19:1D:2E:65:41:17

Certificate extensions & PEM

keyUsage: Digital Signature, Key Encipherment, Certificate Sign
basicConstraints: CA:TRUE
nameConstraints: Permitted: DNS:ns-de.simbanet.co.tz
subjectAltName: DNS:ns-de.simbanet.co.tz
subjectKeyIdentifier: 15:29:20:EB:5B:14:E1:E2:78:8B:9F:53:B5:23:BB:B8:07:84:B0:05

-----BEGIN CERTIFICATE-----
MIIGJTCCBA2gAwIBAgIIbQhJavZyQ2MwDQYJKoZIhvcNAQELBQAwgY0xCzAJBgNV
BAYTAlVTMRQwEgYDVQQKDAtVbnNwZWNpZmllZDEfMB0GA1UECwwWY2EtNzg1NjYx
MDI3MzY5Nzg3NDc4NzEdMBsGA1UEAwwUbnMtZGUuc2ltYmFuZXQuY28udHoxKDAm
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MDQ0NjQ5WhcNMjMxMjI4MDQ0NjQ5WjCBjTELMAkGA1UEBhMCVVMxFDASBgNVBAoM
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OX5QzQrXYk0PYSqdKi9UHLYs79nqtP3G1J7/S8NGDV8wef4vzpV4/Ih0arOad7nz
7SDCkCw6wJcinZsIc9kSEQLr3ccpaD+J00u/OwIWfA4/0CH6nBjSvfw=
-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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