DNS
SSL certificate
TLSv1.2mail.northnet.ru · 91.219.25.12:443
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
Certificate verification failed
- Subject
- O=CommuniGate Systems Customer OU=Trial/Testing CN=mail.northnet.ru emailAddress=postmaster@mail.northnet.ru
- Issuer
- O=CommuniGate Systems, Inc. C=US ST=CA L=Mill Valley OU=CommuniGate Pro CN=communigate.com emailAddress=support@communigate.com
- Valid from
- 1998-02-02T00:00:00+00:00
- Expires
- 2028-02-02T00:00:00+00:00
- Days remaining
- 464
- Serial (hex)
- 1E61
- Signature
- RSA-SHA1
- Public key
- RSA 512
Subject alternative names (SAN)
No SAN extension was presented.
SHA-256 fingerprint
DF:43:F9:B0:24:91:F3:9D:BA:17:E7:7B:59:AA:3F:E4:FE:8F:DB:14:16:53:A8:4E:2D:FC:A6:A3:09:4B:F1:14
Certificate extensions & PEM
-----BEGIN CERTIFICATE----- MIICIzCCAc0CAh5hMA0GCSqGSIb3DQEBBQUAMIGwMSIwIAYDVQQKExlDb21tdW5p R2F0ZSBTeXN0ZW1zLCBJbmMuMQswCQYDVQQGEwJVUzELMAkGA1UECBMCQ0ExFDAS BgNVBAcTC01pbGwgVmFsbGV5MRgwFgYDVQQLEw9Db21tdW5pR2F0ZSBQcm8xGDAW BgNVBAMTD2NvbW11bmlnYXRlLmNvbTEmMCQGCSqGSIb3DQEJARYXc3VwcG9ydEBj b21tdW5pZ2F0ZS5jb20wHhcNOTgwMjAyMDAwMDAwWhcNMjgwMjAyMDAwMDAwWjCB hjElMCMGA1UEChMcQ29tbXVuaUdhdGUgU3lzdGVtcyBDdXN0b21lcjEWMBQGA1UE CxMNVHJpYWwvVGVzdGluZzEZMBcGA1UEAxMQbWFpbC5ub3J0aG5ldC5ydTEqMCgG CSqGSIb3DQEJARYbcG9zdG1hc3RlckBtYWlsLm5vcnRobmV0LnJ1MFwwDQYJKoZI hvcNAQEBBQADSwAwSAJBAL7+aty3S1iBA/+yxjxv4q1MUTd1kjNwL4lYKbpzzlmC 5beaQXeQ2RmGMTXU+mDvuqItjVHOK3DvPK7lTcSGftUCAwEAATANBgkqhkiG9w0B AQUFAANBACo+Qm8CWXzmo76qjqUyA0XOQpOnRgSDBH+/yCWksVPsm70DNRLDmvfJ E4G5z36P9wytnau23Bp1vYxm3bTJau4= -----END CERTIFICATE-----
Cipher: AES128-SHA · Checked 2026-10-25T21:24:59+00:00
One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.