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F5 BIG-IP Local Traffic Manager (LTM) vs Kemp LoadMaster vs NetScaler comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
7.1
F5 BIG-IP LTM offers strong ROI with 24/7 availability and security, though some note high costs and variable returns.
Sentiment score
7.4
Kemp LoadMaster is a cost-effective solution that enhances efficiency, security, and offers significant returns quickly in various industries.
Sentiment score
8.1
NetScaler ensures data security and operational efficiency, providing significant cost savings and stability for medium enterprises.
 

Customer Service

Sentiment score
6.7
F5 BIG-IP's customer service is praised for expertise and resources, though some experience delays and regional support issues.
Sentiment score
8.8
Kemp LoadMaster support is highly rated for its knowledgeable, efficient team offering quick issue resolution and comprehensive online resources.
Sentiment score
6.1
Citrix support is responsive and knowledgeable, though some users report delays and prefer direct access to experienced engineers.
I would rate the technical support of F5 BIG-IP Local Traffic Manager (LTM) nine out of ten.
We have not received technical support from Kemp LoadMaster without a license.
 

Scalability Issues

Sentiment score
7.4
F5 BIG-IP LTM is valued for scalability, flexibility, and adaptability, with configuration and licensing considerations for optimal deployment.
Sentiment score
8.2
Kemp LoadMaster is highly scalable, supporting smooth upgrades and adaptable licensing for both small and large enterprises.
Sentiment score
7.8
NetScaler is praised for high scalability and flexibility, despite some challenges with licensing complexity and multi-tenancy support.
 

Stability Issues

Sentiment score
8.0
F5 BIG-IP LTM is valued for stability, handling high loads well despite occasional bugs, making it preferred by organizations.
Sentiment score
8.7
Kemp LoadMaster is praised for its stability, reliability, high availability, and effective server load management with minimal downtime.
Sentiment score
7.6
NetScaler is highly rated for stability and performance, with some recommending regular maintenance for optimal reliability.
With the license purchase afterwards, if it expires, it begins dropping the HTTP traffic, also the DNS traffic.
 

Room For Improvement

F5 BIG-IP LTM is expensive, complex, lacks flexibility, and needs better UI, reporting, support, cloud integration, and pricing.
Kemp LoadMaster needs UI, security, documentation enhancements, improved monitoring, automation, analytics, and better cloud integration.
NetScaler needs improvements in usability, stability, security integration, and support while enhancing documentation, pricing transparency, and deployment processes.
After that, they said if it was good, we could purchase the license, and while we found it very good, the license cost was too high.
 

Setup Cost

F5 BIG-IP LTM pricing is higher with complex licensing, but performance justifies the cost; AWS Marketplace is convenient yet costlier.
Kemp LoadMaster offers flexible, cost-effective licensing and setup with positive user feedback and a 30-day free trial.
NetScaler pricing is high but offers strong features; cost-saving options include alternatives or negotiating multi-year subscriptions.
 

Valuable Features

F5 BIG-IP LTM provides traffic management, security, and customization with iRules, SSL offloading, and an intuitive interface.
Kemp LoadMaster offers ease of use, security features, Azure integration, and cost-effective load balancing for Microsoft applications.
NetScaler provides flexible deployment, security enhancements, and integration with Citrix for efficient application delivery and robust traffic management.
One of the most beneficial features of F5 BIG-IP Local Traffic Manager (LTM) is its ability to identify compromised traffic and its capabilities in authentication.
We had some issues in patching management, so we deployed this product for virtual patching, the IPS rule, and it gives us very good results because we have very critical servers.
 

Mindshare comparison

As of September 2025, in the Application Delivery Controllers (ADC) category, the mindshare of F5 BIG-IP Local Traffic Manager (LTM) is 15.9%, up from 15.3% compared to the previous year. The mindshare of Kemp LoadMaster is 7.1%, down from 7.2% compared to the previous year. The mindshare of NetScaler is 14.3%, down from 16.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Delivery Controllers (ADC) Market Share Distribution
ProductMarket Share (%)
NetScaler14.3%
F5 BIG-IP Local Traffic Manager (LTM)15.9%
Kemp LoadMaster7.1%
Other62.699999999999996%
Application Delivery Controllers (ADC)
 

Featured Reviews

Bonieber  Orofeo - PeerSpot reviewer
Identifying compromised traffic and securing data has been a significant advantage
One of the most beneficial features of F5 BIG-IP Local Traffic Manager (LTM) is its ability to identify compromised traffic and its capabilities in authentication. Additionally, the security aspect of it provides a significant advantage as it helps us secure our data, which is a major investment and benefit for us. Before using this system, we had difficulties in storing our data and managing the traffic that comes in and out.
IshtiaqKhalil - PeerSpot reviewer
Displays flexible, user-friendly interface with minor licensing challenges
The product could be improved with a more intuitive interface for complex configurations and more advanced analytics. Additionally, enhanced security features, like a more robust Web Application Firewall, and stronger APIs for better automation would be beneficial. Overall, the main areas for improvement are in strengthening the advanced features to better meet the demands of large-scale enterprise environments. key features for the next release should focus on three areas. First, an enhanced, next-generation security suite with a more powerful Web Application Firewall (WAF) and integrated bot protection. Second, more advanced and customizable analytics dashboards to provide deeper insights into application performance. Finally, greater support for modern, cloud-native environments, including better APIs for automation and seamless hybrid-cloud traffic management
DEMİRHAN ÇAVUŞOĞLU - PeerSpot reviewer
A tool for centralized management including inventory and sales tracking
Citrix ADM has the ability to implement policies to tighten security. For instance, you can restrict access to your network from outsiders or lack necessary security measures such as antivirus programs. Additionally, there's the Delivery Controller, which allows for comprehensive monitoring and management tasks such as remote restarts, maintenance, and registration. Another essential component is the Director, which provides detailed insights into sessions, including identifying session failures, connection issues, user lockouts, etc. It presents a list of problems to address, enabling you to click on them and resolve them efficiently.
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Top Industries

By visitors reading reviews
Financial Services Firm
16%
Computer Software Company
12%
Government
8%
Manufacturing Company
7%
Computer Software Company
15%
Manufacturing Company
8%
Government
7%
Financial Services Firm
7%
Computer Software Company
15%
Financial Services Firm
10%
Government
9%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise31
Large Enterprise84
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise13
Large Enterprise16
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise23
Large Enterprise57
 

Questions from the Community

What needs improvement with F5 BIG-IP?
The GUI of F5 BIG-IP Local Traffic Manager (LTM) could be improved. It's not something regarding how it processes or ...
What is your primary use case for F5 BIG-IP?
F5 BIG-IP Local Traffic Manager (LTM) is a perfect product for load balancing and WAF, and I would recommend it far m...
What do you like most about Kemp LoadMaster?
Scalability-wise, I rate the solution a ten out of ten...I rate the technical support a ten out of ten...The initial ...
What is your experience regarding pricing and costs for Kemp LoadMaster?
My primary advice is to carefully analyze your total cost of ownership (TCO) rather than just the initial purchase pr...
What needs improvement with Kemp LoadMaster?
The product could be improved with a more intuitive interface for complex configurations and more advanced analytics....
What do you like most about Citrix ADC?
The most valuable feature for us is the application firewalling in Citrix NetScaler, ensuring only valid traffic ente...
What is your experience regarding pricing and costs for Citrix ADC?
After deployment, Citrix Netscaler shifted to a subscription-based license scheme for support, which is slightly more...
What needs improvement with Citrix ADC?
Citrix NetScaler is a robust product, but mastering it requires significant learning and training due to its complexi...
 

Also Known As

F5 BIG-IP, BIG-IP LTM, F5 ASM, Viprion, F5 BIG-IP Virtual Edition , Crescendo Networks Application Delivery Controller, BIG IP
LoadMaster Load Balancer
Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall, NetScaler VPX - Customer Licensed
 

Overview

 

Sample Customers

Riken, TransUnion, Tepco Systems Administration, Daejeon University, G&T Bank, Danamon, CyberAgent Inc.
Kent County Council, KEMP, SMA Solar Technology AG, RT€ Player , Victrix (Quebec, Canada), Texas A&M, Macmillan Cancer Support, Cisco, Austin Bank
ABB Schweiz, Aer Lingus, AIDS Healthcare Foundation, Amnet Technology Solutions, Aramex International, Ascenty, Atos, Autodesk
Find out what your peers are saying about NetScaler, F5, HAProxy and others in Application Delivery Controllers (ADC). Updated: August 2025.
867,497 professionals have used our research since 2012.