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Load Balancer

Updated on 10 September, 2025

Distribute traffic across multiple servers with Vultrs Load Balancer to improve application reliability, performance, and scalability.


A guide explaining how to set up and configure a Vultr Load Balancer for distributing traffic across multiple servers.
A guide explaining how to configure and manage geographic regions for Vultrs Global Load Balancer service
Frequently asked questions and answers about Vultrs products, services, and platform features.

Support Documents

Is DDoS Protection Included with Vultr Load Balancers?

Load Balancers rely on network-edge DDoS protection with optional enhanced protection available for high-risk workloads.

What Is the Impact of Using Vultr Load Balancers on Edge Latency in Multi-Region Deployments?

Load Balancers optimize edge latency in multi-region deployments by intelligently routing traffic to the nearest healthy backend servers based on geographic proximity and server health.

Are Health Checks Included with Vultr Load Balancers?

Load Balancers include configurable health checks that automatically monitor instance status and remove failing servers from rotation.

How to Troubleshoot Vultr Load Balancer Health Check Issues?

A guide for diagnosing and resolving health check failures in Vultr Load Balancers to ensure proper traffic routing to backend servers.

What Is the Maximum Number of Forwarding Rules I Can Create?

Each Vultr Load Balancer supports a maximum of 15 forwarding rules for directing incoming traffic to backend instances.

Why Can't I Reach an Attached Instance Through My Vultr Load Balancer?

Troubleshooting guide for connectivity issues between Vultr Load Balancers and backend instances, covering common network configuration problems and instance health issues.

Is Vultr’s Load Balancer Managed?

Load Balancers are a fully managed service where Vultr handles all infrastructure provisioning, operations, and maintenance without requiring customer configuration of the underlying software stack.

How Can Vultr Load Balancers Optimize Performance for Microservices-Based Architectures?

Load Balancers optimize microservices architectures by intelligently distributing traffic across multiple backend instances, ensuring high availability and performance while enabling seamless scaling.

How Can I Use VPC Network with My Vultr Load Balancer?

Guide to configuring Vultr Load Balancers to route traffic through VPC networks for improved security and reduced bandwidth costs

Can I Use My Load Balancer in One Region With Instances in a Different Region?

Load Balancers can only distribute traffic to instances within the same region to ensure optimal performance and reliable health checks.

What Are Restrictions on Ports When Configuring Firewall Rules?

Explains port restrictions when setting up Vultr firewall rules, noting specific reserved port ranges for internal Load Balancer operations

How Does a Load Balancer Improve Uptime?

Load balancers enhance system reliability by monitoring server health and automatically redirecting traffic away from failing instances to operational ones.

Does Vultr Load Balancer Support Automatic Failover?

Load Balancers provide automatic failover through continuous health checks on attached instances to ensure high availability.

Can I Configure Firewall Rules on a Vultr Load Balancer?

Load Balancers include configurable firewall rules to restrict inbound traffic based on IP addresses, subnets, or ranges for enhanced security.

Can I Scale My Application Using a Vultr Load Balancer?

Load Balancers enable horizontal scaling by distributing traffic across multiple backend instances to handle increased demand efficiently.

Can I Use Vultr Load Balancers With Any Application?

Load Balancers work with any application using TCP, HTTP, or HTTPS protocols, supporting diverse workloads from web apps to game servers.

Can Vultr Load Balancers Be Used to Implement Blue-Green or Canary Deployments?

Load Balancers support advanced deployment strategies like blue-green and canary releases through selective traffic routing and backend pool management.

How Do Vultr Load Balancers Integrate with Infrastructure-as-Code (IaC) Tools?

Load Balancers seamlessly integrate with Infrastructure-as-Code tools through Terraform providers, Ansible modules, and the Vultr API for automated deployment and management.

How Do Forwarding Rules Work on Vultr Load Balancer?

Forwarding rules that define how incoming traffic on specific ports is directed to backend instance ports on Vultr Load Balancers.

What Is the Default Interval Between Health Checks and How Can It Be Changed?

The default health check interval for Vultr Load Balancers is 10 seconds and can be modified through configuration settings.

How Is Bandwidth Charged for Vultr Load Balancers?

Load Balancers are bandwidth neutral with traffic charges applied to the attached instances rather than the load balancer itself.

Is SSL Termination Supported with Vultr Load Balancers?

Load Balancers support SSL termination, handling TLS handshakes and decrypting HTTPS traffic before forwarding to backend servers.

What Is Vultr Load Balancer and How Does It Simplify Traffic Management?

A fully managed service that distributes network traffic across multiple servers to ensure high availability and optimize resource utilization.

What Protocols Do Vultr Load Balancers Support?

Load Balancers support TCP, HTTP, and HTTPS protocols for distributing traffic across multiple servers.

What Type of Load Balancing Does Vultr Offer?

offers both Layer 4 (Transport) and Layer 7 (Application) load balancing to distribute traffic across backend instances.

What Type of Load Balancing Algorithms Are Available?

Overview of traffic distribution algorithms supported by Vultr Load Balancers for optimizing request handling across backend servers

What Regions Are Supported for Vultr Load Balancers?

Load Balancers are available in all Vultr datacenter regions for distributing traffic across compute instances.

Why Did My Backend Instances Become Unhealthy When Enabling PROXY Protocol?

Explains why backend instances may become unhealthy when enabling PROXY Protocol on Vultr Load Balancers without proper backend configuration

Why Does My Vultr Load Balancer Respond With a 504 Gateway Timeout Error?

Explains why Vultr Load Balancers return 504 Gateway Timeout errors and their relationship to backend server response times.

Why Does My Vultr Load Balancer Respond With an HTTP 503 Error?

A 503 error from Vultr Load Balancer occurs when no healthy backend instances are available to handle requests.

Why Should I Use a Load Balancer?

Load balancers improve application reliability and performance by distributing client traffic across multiple backend instances to prevent overload and ensure high availability.