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Fortinet FortiADC 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
5.0
Fortinet FortiADC offers reliable web traffic management with strong support, but users find WAF functionality could improve usability.
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.
The alert system is efficient, sending alerts within a fraction of a second if any power issues arise.
Senior Network Engineer at SP SYSNET PTE. LTD.
 

Customer Service

Sentiment score
6.2
Fortinet FortiADC's support experiences vary, with praise for professionalism but issues with response times and license-related impacts.
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.
The support team is knowledgeable and efficiently assists with automation and configuration problems.
Security Network Architect at Inmac
Fortinet technical support is very good, and they provide us with better support.
Team Lead at Adapt Information Technologies (Pvt) Ltd
On a scale from one to ten, the support deserves an eight.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
We have not received technical support from Kemp LoadMaster without a license.
Information Security Engineer at BOK
 

Scalability Issues

Sentiment score
7.4
Fortinet FortiADC is scalable with virtual, cloud, and hardware models, but accurate initial sizing is crucial for expansion.
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.
For those opting for a SaaS or cloud solution, there is scalability and flexibility.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
It is scalable for some versions, however, as components reach their end of support, upgrades are necessary to maintain scalability.
Security Network Architect at Inmac
Kemp LoadMaster is a scalable solution.
Information Security Engineer at BOK
 

Stability Issues

Sentiment score
8.2
Fortinet FortiADC is highly stable and reliable, with responsive support, despite minor bugs occasionally introduced by firmware updates.
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.
We have two applications in two ESXi hosts that I integrated into our ADC, and I created one virtual IP in the virtual server pool.
Team Lead at Adapt Information Technologies (Pvt) Ltd
Overall, it has been good; in the past it was very good, and now it is still performing well.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
The support system is reliable when issues like automation or configuration arise.
Security Network Architect at Inmac
With the license purchase afterwards, if it expires, it begins dropping the HTTP traffic, also the DNS traffic.
Information Security Engineer at BOK
 

Room For Improvement

Fortinet FortiADC users seek better support, documentation, and features, including load-balancing, security, interface, and resource optimization improvements.
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.
Fortinet has been a pioneer for enterprise solutions, such as firewalls, SASE, ZTNA, and SD-WAN solutions, and they are in a leader quadrant.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
The limitation of managing all components and the differing versions pose challenges.
Security Network Architect at Inmac
If I need design help, they do not assist; they say it is a design issue they cannot support, and I must approach the system integrator.
Senior Network Engineer at SP SYSNET PTE. LTD.
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.
Information Security Engineer at BOK
 

Setup Cost

Fortinet FortiADC offers competitive, predictable pricing with flexible licensing options, appealing to both small businesses and large enterprises.
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.
This solution is quite expensive compared to Kemp.
Senior Network Engineer at SP SYSNET PTE. LTD.
 

Valuable Features

Fortinet FortiADC offers features like SSL offloading and load balancing, valued for simplicity, scalability, affordability, and integration.
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.
The implementation process is straightforward, and cluster implementation is also very easy.
Team Lead at Adapt Information Technologies (Pvt) Ltd
When integrated with FortiAnalyzer, it has much more significance.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
I use server load balancing and employ layer seven features, which provide more granular traffic shaping and detailed logs.
Senior Network Engineer at SP SYSNET PTE. LTD.
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.
Information Security Engineer at BOK
 

Mindshare comparison

As of April 2026, in the Application Delivery Controllers (ADC) category, the mindshare of Fortinet FortiADC is 9.7%, down from 9.8% compared to the previous year. The mindshare of Kemp LoadMaster is 6.8%, down from 7.6% compared to the previous year. The mindshare of NetScaler is 12.7%, down from 15.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Delivery Controllers (ADC) Mindshare Distribution
ProductMindshare (%)
NetScaler12.7%
Fortinet FortiADC9.7%
Kemp LoadMaster6.8%
Other70.8%
Application Delivery Controllers (ADC)
 

Featured Reviews

GANESAN K - PeerSpot reviewer
Senior Technical Engineer at Safezone Secure Solutions Private Limited
Has supported load balancing for medical applications and could benefit from more custom configuration options
Some customers need custom management for handling their applications across the servers. Instead of having a predefined solution, if we had space for custom-based algorithms to load balance the traffic, it would be better. We have faced such cases with A10, where we can leverage many custom scripts and do much more. Even though A10 primarily focuses on SMBs, they have also ventured into the enterprise market. Fortinet has been a pioneer for enterprise solutions, such as firewalls, SASE, ZTNA, and SD-WAN solutions, and they are in a leader quadrant. Therefore, they should have more options. From a pricing perspective, it is expensive.
IshtiaqKhalil - PeerSpot reviewer
Information Security Engineer at BOK
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
AR
IT Security Specialist at a educational organization with 201-500 employees
Allows students and lecturers access to necessary software for their courses cost-effectively
I am a consultant and do not recommend specific products. I work with customers, and they decide what they want to buy. I'm a CISO as a service, dealing with security. I'm from an integrator company, and they usually sell a few products. One customer uses NetScaler for a VDI system with Citrix…
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Use our free recommendation engine to learn which Application Delivery Controllers (ADC) solutions are best for your needs.
885,444 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
10%
Financial Services Firm
9%
Government
9%
Energy/Utilities Company
7%
Computer Software Company
11%
Manufacturing Company
9%
Financial Services Firm
7%
Government
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise4
Large Enterprise7
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise13
Large Enterprise16
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise23
Large Enterprise57
 

Questions from the Community

Is Citrix ADC (formerly Netscaler) the best ADC to use and if not why?
For ADC, any ADC can do a good job. But in case if you want to add WAF functionality to the same ADC hardware you hav...
Do you recommend Fortinet FortiADC?
I recommend Fortinet FortiADC. My experience with Fortinet has been very positive. Our company has been using it for ...
What is your experience regarding pricing and costs for Fortinet FortiADC?
Pricing is not considered on our side since we are the implementation team. Our pre-sales team considers the pricing ...
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 is your primary use case for Kemp LoadMaster?
Our primary use case was traffic load balancing and distribution. The solution was essential for managing all inbound...
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

FortiADC Application Delivery Controller, FortiADC
LoadMaster Load Balancer
Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall, NetScaler VPX - Customer Licensed
 

Overview

 

Sample Customers

Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
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 F5, NetScaler, HAProxy and others in Application Delivery Controllers (ADC). Updated: March 2026.
885,444 professionals have used our research since 2012.