100% Tier-1 Gogent
Link: https://billing.chicagovps.net/ , which linked directly from CVPS homepage under Client Area.
Unable to complete secure transaction You tried to access the address https://billing.chicagovps.net/, which is currently unavailable. Please make sure that the web address (URL) is correctly spelled and punctuated, then try reloading the page. Secure connection: fatal error (44) https://billing.chicagovps.net/ The certificate has been revoked by its issuer. It is no longer valid. In the worst case it may be used by criminals for fraudulent purposes. The website owner must immediately replace the certificate. The certificate was revoked because a newer certificate has been issued.