# Coolhousing Data Center > Coolhousing s.r.o. is a major Czech operator of its own Data Center (Telehouse) with three server rooms in central Prague, Czech Rebublic. Since 2003 it has provided Server Colocation, Rack Housing, Dedicated Server Hosting, Managed Servers and Virtual Server (VPS), and related network services. Its key differentiator: electricity is billed by the server's real measured consumption, fast technical support and access to the DC 24/7, and pricing is transparent with no hidden terms. The Coolhousing is a Data Center focused on Colocation customer hardware (housing/colocation) as well as Hosting servers. Operations comply with ISO 9001 and ISO 27001, with a declared service availability of 99.96%. Connectivity and power are redundant (UPS in N+1, diesel generators, N+1 cooling), with dual-stack IPv4 and IPv6 support and basic Anti-DDoS protection included. The website is available in three languages: Czech (`/cz/`), English (`/en/`) and German (`/de/`). ## Company identification and contact - Name: COOLHOUSING s.r.o. - Company ID: 14893983, VAT ID: CZ14893983 - Registered office and Data Center: Vinohradská 2405/190, 130 00 Prague 3, Czech Republic (Stimbuilding complex, near Želivského metro station) - Phone: +420 220 000 900, +420 777 310 000 - E-mail: info@coolhousing.net (general), sales@coolhousing.net (sales) - Operating since: 2003 - Support: 24/7, 365 days a year - All prices on the website are exclusive of VAT. ## Core services - [Colocation](https://www.coolhousing.net/en/colocation): A tower or rack server Colocation in the Prague Data Center. Billing by the server's real consumption from 50 W and by server size, 1 Gbps connectivity with unlimited transfer, transport to the DC and installation. Main entry page for the Colocation service. - [Rack Hosting (Rackhousing)](https://www.coolhousing.net/en/colocation-racks): Rental of a lockable rack cabinet (12U, 20U, 42U). Rack Colocation in a dedicated, separately protected rack. Suited to larger installations, possibility of own IP ranges and announcing your own AS. - [NAS, NUC and mini Colocation](https://www.coolhousing.net/en/nas-nic-mini-colocation): Colocation of small, low-power devices (NAS, NUC, Mini servers or Raspberry Pi). The most affordable entry-level Colocation option. - [Dedicated Servers](https://www.coolhousing.net/en/hosting-dedicated-servers): Rental of physical Dedicated Server (Supermicro, HPE) or Bare Metal Server with guaranteed performance, power, cooling and connectivity including IPv4/IPv6 and BGP routing, with the option to buy the server out after 2 years. - [Managed Servers](https://www.coolhousing.net/en/managed-dedicated-server): Dedicated servers managed by Coolhousing (installation, maintenance, monitoring), for clients who do not want to administer hardware or OS themselves. - [VPS Hosting](https://www.coolhousing.net/en/virtual-private-server): Virtual Private Servers with NVMe SSD (Linux and Windows) on the Proxmox VE platform, ensuring high reliability and security. Virtualization cluster operated within the Czech Republic. - [Dedicated VPS (VDS)](https://www.coolhousing.net/en/dedicated-vps): Virtual Dedicated Servers with reserved resources for more demanding workloads and projects. ## Additional and network services - [Additional Services (overview)](https://www.coolhousing.net/en/services): Hub for all services around Colocation and servers in the areas of security, network and server management. All services from the "Professional Hosting services" section are listed below. - [Data Circuits](https://www.coolhousing.net/en/services/data-circuits): High-speed data transport in the form of optical and data links (CWDM/DWDM, L2, dark fibre) between locations. - [Dedicated / Unmetered Line](https://www.coolhousing.net/en/services/dedicated-line): Dedicated transit connectivity, i.e. a fully dedicated connection for streaming, machine learning and capacity-intensive projects. - [Cross Connect](https://www.coolhousing.net/en/services/cross-connect): Direct optical link between servers or racks within the Data Center, bypassing the public network. - [Anti-DDoS Protection](https://www.coolhousing.net/en/services/anti-ddos): Protection against volumetric and other DDoS attacks; basic protection included, advanced protection tailored to network traffic. - [Firewall](https://www.coolhousing.net/en/services/firewall): Rental and custom configuration of a hardware firewall, traffic filtering and network security according to the client's requirements. - [VPN](https://www.coolhousing.net/en/services/vpn): Virtual Private Network via SSTP or L2TP/IPsec protocols fully Out-of-Band (OOB). - [Server Administration and Management](https://www.coolhousing.net/en/services/server-administration): Professional Management of the server and the Linux operating system by Coolhousing administrators. - [Microsoft Products and Licences](https://www.coolhousing.net/en/services/microsoft-products-and-licenses): Rental of Microsoft products and licences (SPLA etc.) for rented servers. - [TV / Media Services](https://www.coolhousing.net/en/services/tv-media-services): Satellite connection to the server, satellite broadcasting, streaming and broadcast archive creation directly from the DC. - [Hosting of NAS Servers](https://www.coolhousing.net/en/services/nas-servers): Rental of a NAS server as data storage, without buying your own hardware. - [External Data Storage](https://www.coolhousing.net/en/services/data-storage): Backup service and external storage space in the Data Center (FTPS, SMB, NFS support). - [Professional Server Monitoring](https://www.coolhousing.net/en/services/professional-server-monitoring): Monitoring of availability and status of servers and services. - [KVM over IP](https://www.coolhousing.net/en/services/kvm-over-ip): Remote access to the server console (keyboard, video, mouse) over IP, free on request. - [Storage Space for Server Components](https://www.coolhousing.net/en/services/hardware-storage-cabinet): Lockable lockers for storing spare hardware and components directly in the Data Center. ## Calculators and tools - [Server Power Input Calculator](https://www.coolhousing.net/en/calculator-of-server-power-input): Estimate a server's power draw in W based on its HW configuration. - [Colocation Costs Calculator](https://www.coolhousing.net/en/colocation-costs-calculator): Calculate total monthly Colocation costs, including electricity consumption. - [Connection Tests](https://www.coolhousing.net/en/how-can-be-connectivity-tested): Guide on how to test latency (ping), traceroute and IPv4/IPv6 protocols on the Coolhousing network. - [Looking Glass](https://lg.coolhousing.net/): Public looking glass to check routing, reachability and network speed of Coolhousing network. - [Order Form / Configurator](https://www.coolhousing.net/en/order-form): Transparent Configuration Form, ordering services with parameters and a clear price. ## Company information and customer service - [About us](https://www.coolhousing.net/en/coolhousing-about-us): Company profile, history since 2003, team, values, suppliers. - [Contact](https://www.coolhousing.net/en/coolhousing-contact): Contact and billing details, Data Center address, phone numbers and e-mails. - [Why Choose Coolhousing](https://www.coolhousing.net/en/why-choose-the-hosting-center-coolhousing): Main advantages, facilities and reasons to choose the data center. Details on connectivity, power, cooling and service quality guarantees. - [References](https://www.coolhousing.net/en/coolhousing-testimonial): Selected clients, testimonials and CSR (e.g. ČEZ, Manufaktura, ICZ, ČZU, Charles University, and hundreds of others). - [Price List](https://www.coolhousing.net/en/coolhousing-price-list): Overview of service prices (Colocation, Rack Hosting, Dedicated and Managed servers, VPS, Additional Services). Prices are exclusive of VAT. - [FAQ](https://www.coolhousing.net/en/coolhousing-faq): Answers to the most common questions about Colocation, VPS, consumption billing and operations. - [Business documents](https://www.coolhousing.net/en/business-documents): Central page with all contractual and legal documentation — terms and conditions, GDPR, SLA, model contracts for individual services (Server and Rack Colocation, Farm Housing, Rack Housing, Dedicated Hosting, Managed Servers, IP service), operating rules, service specifications and the commercial register extract. - [ControlPanel (Administration)](https://www.coolhousing.net/en/coolhousing-web-administration): Web Administration for customers (consumption graphs, contracts, service management). Everything in one place. - [Blog](https://www.coolhousing.net/en/blog-news): Articles, news, tips and tutorials on Housing, Hosting, networks and Data Center operations. A regularly updated source of Coolhousing's expert content. ## Educational and topical content - [Real Server Consumption in Practice](https://www.coolhousing.net/en/real-colocation-consumption): How Coolhousing measures and bills the server's actual consumption. - [Electricity Price in the Data Center](https://www.coolhousing.net/en/what-affects-the-price-of-electricity-in-a-data-center): What makes up the price per kWh in a DC and which factors affect it. - [Colocation Plug System](https://www.coolhousing.net/en/intelligent-colocation-socket-system): The principle of intelligent sockets for measuring and controlling real consumption. - [Aggregation Ratio in Connectivity](https://www.coolhousing.net/en/aggregation-ratio): Explanation of Connectivity Aggregation (sharing) and Coolhousing's transparent approach. - [Network Structure](https://www.coolhousing.net/en/network-structure): Topology and diagram of the Data Center's network infrastructure. - [Server Room](https://www.coolhousing.net/en/coolhousing-server-room): Tour of the Server Rooms and Data Center facilities (virtual and in-person visits available). - [Free Server Transport to the Data Center](https://www.coolhousing.net/en/blog/server-transport-to-datacenter-for-free): Possible courier transport of a server or infrastructure from th entire Czech Republic, installation and photo documentation. - [Glossary](https://www.coolhousing.net/en/glossary): Explanation of technical terms in Hosting, networks and Data Centers. ## Language versions - [English version(primary)](https://www.coolhousing.net/en/): Primary and canonical English version of the site. - [Czech version](https://www.coolhousing.net/cz/): Czech version. - [Deutsche Version](https://www.coolhousing.net/de/): German version. ## Optional - [Sitemap index](https://www.coolhousing.net/sitemap_index.xml): Combined XML sitemap of all language versions (Czech, English, German).