⚡ Load Balancers in the United States

Load balancers are software components or network devices that distribute incoming traffic across multiple backend servers, improving application availability, scalability, and fault tolerance by preventing any single server from becoming a bottleneck.

The United States of America (USA) is a North American country with a population of over 341 million people.

According to our statistics, load balancers are detected on 9.1% of websites from the United States.

Statistics based on 579K+ analyzed websites. About this data

⭐ Most Popular in 2026

The following chart shows the top load balancers in the United States in 2026, based on market share.

The most popular is Varnish with a share of 27.8%, followed by AWS Elastic Load Balancer with 16.4% and Sucuri CloudProxy with 14.9%.

🚀 Highlights

Here is a list of the top load balancers that are more popular in the United States than worldwide.
Differences between global and country rankings are shown in parentheses.

2. AWS Elastic Load Balancer ^(-1)
3. Sucuri CloudProxy ^(-4)
7. Azure Front Door ^(-1)
10. Ivanti vADC ^(-1)
12. HAProxy ^(-1)

✨ Best Load Balancers

Below is a more detailed list of 17 load balancers used on sites from the United States, ranked by their market share.

Rank	Name	Market share
1	Varnish Stockholm, Sweden An open-source web application accelerator, also known as a caching HTTP reverse proxy. FreeOpen source$1,500+/year	27.8%
2	AWS Elastic Load Balancer Seattle, Washington, United States Automatically distributes incoming traffic across multiple targets, such as EC2 instances, containers, and IP addresses. Free$$$	16.4%
3	Sucuri CloudProxy Tempe, Arizona, United States A website application firewall that stops bad actors, speeds up load times, and increases website availability.	14.9%
4	Google Cloud Load Balancer Mountain View, California, United States Distributes user traffic across virtual machine instances in the same region.	14.3%
5	F5 BIG-IP Seattle, Washington, United States An enterprise-grade application delivery controller and full reverse proxy platform for managing, securing, and optimizing web and API traffic. $3,200+/year	9%
6	Application Request Routing Redmond, Washington, United States A module for Internet Information Server that can load-balance between multiple servers in a server farm.	8.6%
7	Azure Front Door Redmond, Washington, United States A cloud content delivery network service that offers Layer 7 load-balancing capabilities. $35+/month	5.5%
8	Envoy San Francisco, California, United States A high-performance, open source edge and service proxy designed for cloud-native applications and large microservice "service mesh" architectures. FreeOpen source	4.8%
9	Azure Application Gateway Redmond, Washington, United States A managed web traffic load balancer and full reverse proxy that enables scalable, highly available, and secure web application delivery on Azure. $0.0255+/hour	2.9%
10	Ivanti vADC South Jordan, Utah, United States A software-based application delivery controller solution that delivers applications with predictable performance and strong multi-layered security and includes Virtual Traffic Manager, Services Director and Web Application Firewall. $$$	2.6%
11	Heroku Vegur San Francisco, California, United States Open-source proxy and load balancing software. FreeOpen source	0.8%
12	HAProxy Newton, Massachusetts, United States A high-performance reverse proxy and load balancer for TCP- and HTTP-based applications. FreeOpen source$$$	0.7%
13	Apache Traffic Server Wilmington, Delaware, United States A fast, scalable, and extensible web proxy cache that improves performance by caching frequently accessed information at the edge of the network. FreeOpen source	0.4%
14	Barracuda Load Balancer ADC Campbell, California, United States A unified high-performance platform that helps organizations achieve their availability, acceleration, application control, and application security objectives. $7,000+/year	0.3%
15	NetScaler Fort Lauderdale, Florida, United States An application delivery and security platform that provides high-performance load balancing, application delivery, and security solutions. $11,000+/year	0.2%
16	Kong Gateway San Francisco, California, United States An API gateway that manages, secures, and routes API traffic using a cloud-native, platform-agnostic architecture. FreeOpen source$105+/month	0.1%
17	Squid Westminster, Colorado, United States A caching proxy for the web that supports HTTP, HTTPS, FTP, and more. FreeOpen source	0.05%

👉 See Also

🌎 Load Balancers in other countries

🗃️ About This Data

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 579,597 websites from the United States.
We currently track the presence of 18 load balancers across the web.
Of these, 17 were detected on websites from the United States.
Statistics were last calculated on May 6, 2026.
For more details, see our methodology and disclaimer.