⚡ 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 9.9% of websites from the United States.

Statistics based on 654K+ 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 22.6%, followed by Google Cloud Load Balancing with 20.2% and AWS Elastic Load Balancer with 15.3%.

Varnish 22.6%
Google Cloud Load Balancing 20.2%
AWS Elastic Load Balancer 15.3%
Sucuri CloudProxy 14.8%
Application Request Routing 7.9%
F5 BIG-IP 7.3%
Azure Front Door 6.6%
Envoy 4.4%
Caddy 2.8%
Azure Application Gateway 2.5%
Ivanti vADC 1.6%
Google Front End 1.3%
Istio 0.7%
HAProxy 0.6%
Apache Traffic Server 0.3%

🚀 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.

4. Sucuri CloudProxy ^(-4)
7. Azure Front Door ^(-2)
11. Ivanti vADC ^(-2)
14. HAProxy ^(-1)
16. Barracuda Load Balancer ADC ^(-1)
18. Ngrok ^(-1)
19. NetScaler ^(-1)

✨ Best Load Balancers

Below is a more detailed list of 22 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 HTTP accelerator and reverse caching proxy that caches content from web servers to reduce load times, and supports native TLS termination and Kubernetes deployments. FreeOpen source$$$	22.6%
2	Google Cloud Load Balancing Mountain View, California, United States A managed load balancing service that distributes application traffic across virtual machines and containers on Google Cloud. $0.025+/unit/hour	20.2%
3	AWS Elastic Load Balancer Seattle, Washington, United States AWS Elastic Load Balancer automatically distributes incoming traffic across multiple targets, such as EC2 instances, containers, and IP addresses. Free$$$	15.3%
4	Sucuri CloudProxy Tempe, Arizona, United States A website application firewall that stops bad actors, speeds up load times, and increases website availability.	14.8%
5	Application Request Routing Redmond, Washington, United States A module for Internet Information Server that can load-balance between multiple servers in a server farm.	7.9%
6	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	7.3%
7	Azure Front Door Redmond, Washington, United States A cloud content delivery network service that offers Layer 7 load-balancing capabilities. $35+/month	6.6%
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	4.4%
9	Caddy Vienna, Austria An open-source multi-platform web server written in Go with built-in support for automatic HTTPS and modern web protocols. FreeOpen source	2.8%
10	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	2.5%
11	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. $$$	1.6%
12	Google Front End Mountain View, California, United States Google's globally distributed reverse proxy that accepts client connections at the network edge and routes requests to Google services. $$$	1.3%
13	Istio San Francisco, California, United States An open-source service mesh that secures, connects, and monitors services in Kubernetes, virtual machines, and multi-cloud environments. FreeOpen source	0.7%
14	HAProxy Newton, Massachusetts, United States An open-source load balancer and reverse proxy for TCP and HTTP-based applications. FreeOpen source$$$	0.6%
15	Apache Traffic Server Wilmington, Delaware, United States An open-source high-performance HTTP caching proxy server that serves cached content at the network edge to reduce origin load and improve response times. FreeOpen source	0.3%
16	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	0.2%
17	Heroku Vegur San Francisco, California, United States Open-source proxy and load balancing software. FreeOpen source	0.2%
18	Ngrok San Francisco, California, United States A globally distributed reverse proxy platform that creates encrypted tunnels and consolidates load balancing, API gateway, and firewall capabilities for applications, APIs, and network services. Free$10+/month	0.2%
19	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	0.1%
20	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%
21	Squid Westminster, Colorado, United States An open-source caching proxy server that is most commonly used as a forward proxy to cache outbound internet requests, reduce bandwidth, and improve access times. FreeOpen source	0.03%
⏳	Sōzu Nantes, France An HTTP reverse proxy with runtime configurability and hot upgrades, built in Rust and used by Clever Cloud. FreeOpen source	0.003%

👉 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 654,147 websites from the United States.
We currently track the presence of 23 load balancers across the web.
Of these, 22 were detected on websites from the United States.
Statistics were last calculated on September 19, 2026.
For more details, see our methodology and disclaimer.