⚡ Load Balancers in Spain

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.

Spain is a Southern European country with a population of around 48 million people.

According to our statistics, load balancers are detected on 3.9% of websites from Spain.

Statistics based on 101K+ analyzed websites. About this data

⭐ Most Popular in 2026

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

The most popular is Varnish with a share of 29.7%, followed by Google Cloud Load Balancing with 18.7% and AWS Elastic Load Balancer with 16.5%.

Varnish 29.7%
Google Cloud Load Balancing 18.7%
AWS Elastic Load Balancer 16.5%
F5 BIG-IP 11%
Envoy 10.1%
Azure Application Gateway 5.5%
Application Request Routing 5.2%
Azure Front Door 4.5%
Istio 3.4%
Sucuri CloudProxy 2.7%
Google Front End 2.7%
HAProxy 0.6%
Heroku Vegur 0.3%
Kong Gateway 0.2%
Ivanti vADC 0.2%

🚀 Highlights

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

5. Envoy ^(-1)
6. Azure Application Gateway ^(-3)
9. Istio ^(-2)
12. HAProxy ^(-2)
13. Heroku Vegur ^(-2)
14. Kong Gateway ^(-3)
16. Ngrok ^(-2)
17. Squid ^(-3)
18. Oracle Traffic Director ^(-3)

✨ Best Load Balancers

Below is a more detailed list of 20 load balancers used on sites from Spain, 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$$$	29.7%
2	Google Cloud Load Balancing Mountain View, California, United States A managed load balancing service that distributes application traffic across virtual machines and containers on Google Cloud. $0.025+/unit/hour	18.7%
3	AWS Elastic Load Balancer Seattle, Washington, United States AWS Elastic Load Balancer automatically distributes incoming traffic across multiple targets, such as EC2 instances, containers, and IP addresses. Free$$$	16.5%
4	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	11%
5	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	10.1%
6	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	5.5%
7	Application Request Routing Redmond, Washington, United States A module for Internet Information Server that can load-balance between multiple servers in a server farm.	5.2%
8	Azure Front Door Redmond, Washington, United States A cloud content delivery network service that offers Layer 7 load-balancing capabilities. $35+/month	4.5%
9	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	3.4%
10	Sucuri CloudProxy Tempe, Arizona, United States A website application firewall that stops bad actors, speeds up load times, and increases website availability.	2.7%
11	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. $$$	2.7%
12	HAProxy Newton, Massachusetts, United States An open-source load balancer and reverse proxy for TCP and HTTP-based applications. FreeOpen source$$$	0.6%
13	Heroku Vegur San Francisco, California, United States Open-source proxy and load balancing software. FreeOpen source	0.3%
14	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	0.2%
15	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. $$$	0.2%
16	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	0.1%
17	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	0.1%
18	Oracle Traffic Director Austin, Texas, United States A high-throughput, low-latency layer-7 software load balancer for load balancing HTTP/S and TCP traffic to the application tier.	0.05%
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	0.03%
20	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	0.03%

👉 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 101,428 websites from Spain.
We currently track the presence of 23 load balancers across the web.
Of these, 20 were detected on websites from Spain.
Statistics were last calculated on September 18, 2026.
For more details, see our methodology and disclaimer.