Load Balancer

A load balancer is a software used in computer networks and server infrastructures to evenly distribute workload among multiple servers or resources.
Load balancer

What is a load balancer?

Load balancing is a crucial strategy for improving the performance and reliability of information systems, especially in the context of websites, applications, and networks. It plays a key role in evenly distributing user requests among servers or resources, preventing server overload and ensuring smooth and reliable service operation.


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Types of load balancing

Load balancing methods:

Round Robin

This simple and effective method distributes requests among servers in the order of their availability. Each new request is sent to the next available server in the list. It is effective when servers have similar performance.

Least Connections (with the least number of connections)

Requests are routed to the server with the fewest active connections. This balances the load on servers with different performance levels. If multiple servers have the same load, requests are distributed evenly among them.

Source IP

This method uses a hash function to map a client's IP address to a specific server. Requests from the same source are directed to the same server. This is useful for maintaining session persistence or establishing a continuous connection between the client and server.

Which server load balancer to choose?

When choosing a load balancer service, consider your expected server load and assess your current and future needs. Select a method known for its reliability and fault tolerance, and pay attention to data transmission security.

How does a load balancer work?

Load balancing web services use algorithms that analyze the current resource load and determine the server where to route the next request. There are several approaches to load balancing as a service:
  • Application load balancing: This method operates at the application level, analyzing request characteristics and distributing them among servers based on their attributes.
  • Server load balancing: This approach evenly distributes requests among multiple servers to ensure a balanced load and prevent overloads.
  • Global load balancing: In this case, the load balancer analyzes clients' location and directs them to the nearest server.
How work load balancer

Load Balancer on Fotbo's VPS Servers

Private server equipment

We don't rent server equipment from other providers. This ensures our clients receive exceptional services while maintaining complete independence from other suppliers. Moreover, we use our own IP addresses.

Cutting-Edge Equipment

To ensure maximum speed and fault tolerance, we exclusively employ top-of-the-line, market-leading hardware, including: - HPE G10 servers equipped with powerful Intel Xeon GOLD processors; - DDR4 RAM with fast NVMe drives.

OpenStack Software

Allows creating virtual machines with maximum fault tolerance. OpenStack is the best choice for cloud orchestration and deployment due to its programmability, automation, and flexibility.

Reliable European data centers

We exclusively use trustworthy European data centers, opting for those with TIER III + certification, extensive experience, a substantial client base, and exceptional levels of reliability and fault tolerance.

Benefits of a cloud load balancer

Enhanced Performance

Load balancing systems allow for the efficient utilization of available resources, maximizing performance potential.

High Responsiveness

Load balancing servers reduce response time for user requests. This is crucial for websites and applications where response speed directly impacts user satisfaction.

Greater Reliability

Load balancing minimizes system vulnerabilities, making it less susceptible to failures. Even if one server malfunctions, others continue to process requests.

Load Balancing Servers

Load balancer services efficiently distribute requests and tasks among multiple servers and resources, preventing overloads and ensuring uninterrupted system operation.

Flexible Scalability

Cloud load balancing services offer easy system scalability to match demand. New servers can be added without disrupting system operations, making the infrastructure more adaptable to growing needs.

Fault Minimization

Load balancer server act as a barrier against various types of failures. They monitor server conditions and redirect requests to healthy servers, ensuring system stability and availability of infrastructure and applications.


A load balancer is a network device or service that distributes network traffic among multiple servers or resources to ensure high availability, improve performance, and provide resilience to your infrastructure.

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