SSL Report: mail.vgok.ru (217.114.28.234)
Due to a recently discovered bug in Apple's code, your browser is exposed to MITM attacks. Click here for more information.

Please wait... 84% complete
Testing CVE-2016-2107

Certificate #1: RSA 2048 bits (SHA1withRSA)
Server Key and Certificate #1
Subject mail1.vgok.ru
Fingerprint SHA256: f1f620110bca9fa28b652211b7280aad2fbad0a7202bf1e8850328d925b2138e
Pin SHA256: pUbX7Qt0vSDFYBETHo8C1WwA2523Ht2hjWlxH6w4Gz0=
Common names mail1.vgok.ru
Alternative names mail1.vgok.ru mail.vgok.ru ex2016.vgok.ru vgok.ru
Serial Number 5b26027300000000016e
Valid from Fri, 25 Oct 2024 11:25:20 UTC
Valid until Sun, 25 Oct 2026 11:25:20 UTC (expires in 11 months and 6 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer vgok-DC01-CA
AIA: ldap:///CN=vgok-DC01-CA,CN=AIA,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=vgok,DC=ru?cACertificate?base?objectClass=certificationAuthority
Signature algorithm SHA1withRSA   INSECURE
Extended Validation No
Revocation information None
DNS CAA No (more info)
Trusted No   NOT TRUSTED (Why?)
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 1 (1450 bytes)
Chain issues Incomplete


Certification Paths
No trust paths available
Issuer unknown, or intermediate certificate(s) missing.
No trust paths available
Issuer unknown, or intermediate certificate(s) missing.
No trust paths available
Issuer unknown, or intermediate certificate(s) missing.
No trust paths available
Issuer unknown, or intermediate certificate(s) missing.
No trust paths available
Issuer unknown, or intermediate certificate(s) missing.

Click here to expand

Why is my certificate not trusted?

There are many reasons why a certificate may not be trusted. The exact problem is indicated on the report card in bright red. The problems fall into three categories:

  1. Invalid certificate
  2. Invalid configuration
  3. Unknown Certificate Authority

1. Invalid certificate

A certificate is invalid if:

2. Invalid configuration

In some cases, the certificate chain does not contain all the necessary certificates to connect the web server certificate to one of the root certificates in our trust store. Less commonly, one of the certificates in the chain (other than the web server certificate) will have expired, and that invalidates the entire chain.

3. Unknown Certificate Authority

In order for trust to be established, we must have the root certificate of the signing Certificate Authority in our trust store. SSL Labs does not maintain its own trust store; instead we use the store maintained by Mozilla.

If we mark a web site as not trusted, that means that the average web user's browser will not trust it either. For certain special groups of users, such web sites can still be secure. For example, if you can securely verify that a self-signed web site is operated by a person you trust, then you can trust that self-signed web site too. Or, if you work for an organisation that manages its own trust, and you have their own root certificate already embedded in your browser. Such special cases do not work for the general public, however, and this is what we indicate on our report card.

4. Interoperability issues

In some rare cases trust cannot be established because of interoperability issues between our code and the code or configuration running on the server. We manually review such cases, but if you encounter such an issue please feel free to contact us. Such problems are very difficult to troubleshoot and you may be able to provide us with information that might help us determine the root cause.

SSL Report v2.4.1