The data centres in Frankfurt am Main have also been successfully certified by TÜV as a "TÜV tested datacenter level 3". In addition to the availability of information technology infrastructures, the focus of the certification is on compliance with the laws on data protection and basic IT protection. The different levels for evaluation provide information about accessibility, with level 3 representing a "highly available data centre 24×7". In terms of infrastructures, the TÜV certification provides information about the energy supply of the data centre and risk minimisation through supporting technical equipment as well as through connection to a highly efficient and reliable data network. Additionally, TÜV examined the operational management with regard to maintenance, fault clearance and servicing processes, which are responsible for the unrestricted operation based on the technical infrastructure. Last but not least, IT security is also checked against the requirements of ISO/IEC 27001, which ensure continuous compliance and further development of the information security management system throughout firstcolo's value chain. The validity of the certification can be checked online for the respective locations FRA1 (firstcolo data centre AOC) and FRA4 (firstcolo data centre Werkhaus).