dipesge.dvb.corpinter.net isn't a typical consumer website. It's a certificate management portal, likely part of a larger corporate network. The page you land on asks for a client certificate and provides installation instructions for Windows and browsers. That's a strong clue this is for internal use only.
For an internal tool, the security setup is good: the connection is encrypted, the hosting is on Microsoft's reliable infrastructure, and there are no blacklist or malware flags. The lack of a privacy policy or contact page is completely normal here — you wouldn't post those on an employee-only system.
If you're asking whether dipesge.dvb.corpinter.net is a scam, the evidence points the other way. It's not trying to sell anything or collect outside data. The biggest thing to watch for is whether you're supposed to be accessing it at all — if you're not an employee of the organization that runs it, the error page you see is the intended behavior. For authorized staff, it's a legitimate tool.