Lookup of 5.78.91.67
IP address: 5.78.91.67
Address type: IPv4
Host or reverse DNS (rDNS): static.67.91.78.5.clients.your-server.de
Country: 
United States
5.78.91.67 does NOT belong to a private IP address block.
5.78.91.67 does NOT belong to a reserved IP address block.