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

backbone.co.tz · 41.221.32.218:443

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=TZ ST=Dar es Salaam L=Dar es Salaam O=SimbaNET Ltd OU=NOC CN=cacti.backbone.co.tz emailAddress=noc@simbanet.net
Issuer
C=TZ ST=Dar es Salaam L=Dar es Salaam O=SimbaNET Ltd OU=NOC CN=cacti.backbone.co.tz emailAddress=noc@simbanet.net
Valid from
2014-03-26T02:21:49+00:00
Expires
2015-03-26T02:21:49+00:00
Days remaining
-4211
Serial (hex)
B7E62023CDD99A16
Signature
RSA-SHA1
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

95:D7:B2:30:3C:54:0F:2A:AC:EF:7C:F0:99:03:B0:D0:11:46:BC:11:64:99:D6:B5:35:98:76:FC:BF:4A:7D:A9
Certificate extensions & PEM
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-10-04T15:54:14+00:00

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

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