Go4server" as a specific cloud server provider in my training data, which covers information up until September 2021. It's possible that "go4server" is a relatively new company or a regional/cloud provider that is not widely known.

However, as a general concept, cloud server providers offer virtualized servers and other cloud computing resources to individuals and businesses. These providers typically manage the hardware, networking, and infrastructure required to run and maintain the servers. Customers can then rent or lease these virtual servers, accessing them remotely over the internet.

If "go4server" is a real cloud server provider, I recommend visiting their official website or contacting their customer support to get accurate and up-to-date information about their services, pricing, and features.