Kemp LoadMaster

Kemp LoadMaster

Score 9.4 out of 10
Kemp LoadMaster


What is Kemp LoadMaster?

LoadMaster from Kemp Technologies in New York is an application delivery controller.
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Recent Reviews

Great On-Premises Load Balancer

9 out of 10
October 18, 2021
We are using Kemp LoadMaster across our entire organization. We have an LB pair in our DMZ as well as a pair internal. We primarily use …
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Kemp 2021 Review

10 out of 10
September 24, 2021
It, Kemp LoadMaster, is being used to load balance the data across our network to increase capacity (concurrent users) and reliability of …
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On Premise
per year



On Premise
perpetual license



On Premise
per year

Entry-level set up fee?

  • No setup fee


  • Free Trial
  • Free/Freemium Version
  • Premium Consulting / Integration Services
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Product Details

What is Kemp LoadMaster?

Kemp hyper-performance load balancers are built to power the always-on application experience [AX] that organizations needs to succeed. Kemp boasts redefining the load balancer by providing more simplified deployments, more flexible licensing options, more throughput per $, and direct access technical support.

Kemp LoadMaster Features

  • Supported: L4-7 virtual ADC and Reverse Proxy
  • Supported: Fully-featured Web Application Firewall
  • Supported: Global DNS & Traffic Management Services
  • Supported: SSO & Secure Application Access

Kemp LoadMaster Technical Details

Deployment TypesOn-premise
Operating SystemsWindows
Mobile ApplicationNo

Frequently Asked Questions

LoadMaster from Kemp Technologies in New York is an application delivery controller.

NGINX, NetScaler ADC, and F5 BIG-IP Local Traffic Manager (LTM) are common alternatives for Kemp LoadMaster.

Reviewers rate Support Rating highest, with a score of 9.9.

The most common users of Kemp LoadMaster are from Mid-sized Companies (51-1,000 employees).
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(1-25 of 63)
Companies can't remove reviews or game the system. Here's why
Maxim Rubis | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Initially we purchased the Loadmaster to support the needs of the marketing website (performance and stability issues). But now it supports the whole organization to properly route requests to different systems for different groups of people. Loadmaster was instrumental in launching of the latest website iteration supporting the partial roll out alongside the mix of multiple systems. Content switching and header modification rules helped us overcome various challenges that we encountered. Powerful API lets us easily integration Loadmaster into our continuous delivery pipeline.
  • Performance
  • Powerful API
  • Variety of options
  • UI needs a refreshed modern look and feel
Loadmaster is very powerful and flexible load balancer. Variety of options allows to create a complex network of rules and routes. During our website rollout Loadmaster allowed us to run multiple generations of the website simultaneously and seamlessly by doing the content switching on the fly. Powerful API allows easy integration into any development lifecycle.
Kemp Support is exceptional. They are always ready to assist you no matter how urgent or NOT urgent your request. They are happy to assist with any configuration question (or puzzle as I call them)
Score 9 out of 10
Vetted Review
Verified User
It is currently used to load the balance of all of our Alarm infrastructure creating redundancy to critical systems. This enables us to patch and perform maintenance at any time we wish. The support is also very fast under 1 hour for most issues which is critical to us for supporting the infrastructure for issues.
  • Load balance
  • Redundancy
  • Support service
  • Less technical
  • More presets
  • Template for certain types of services
Definitely well suited in a high availability environment such as ours which supports alarms and CCTV infrastructure, without it we would really struggle to keep our environment patched and up to date for security. So any similar environment would also benefit from [Kemp LoadMaster]. It would be ideal for any sort of RDS farm or anything that needs load balancing such as websites, App servers, or file servers. Also ideal for internal load balancing. A less appropriate scenario is hard because if you don't need to load balance, then you don't need it, lol. So if there's a cheaper alternative to [Kemp LoadMaster] then that's your solution.
Score 10 out of 10
Vetted Review
Verified User
We needed a solution to load balance Exchange 2016 in a remote office in the event of a loss of connectivity to the main office. This site would have no onsite staff from the Exchange team so the solution needed to be reliable and easy to configure/monitor remotely. The site currently has 700 users and is growing. This, Kemp LoadMaster, was very easy to install and configure, and definitely exceeds expectations. The few times I have called support for configuration questions they were knowledgeable and responsive.
  • Easy to configure
  • Templates for many integrations
  • Great technical support
  • Not intuitive on how to fail over the active HA node.
  • Nothing else comes to mind.
Perfect for a remote office in a large organization. The available Exchange templates had the product up and running in just a few hours.
Score 10 out of 10
Vetted Review
Verified User
Kemp [LoadMaster] is used as our load balancer for internet-facing web servers. It balances loads across all servers and also sends traffic based on the target URL. Their support has been extremely helpful with any issues we have faced so far and I have been able to solve all problems over a single call.
  • [It is] easy to set up virtual servers.
  • It is extremely stable and efficient.
  • Support is readily available and helpful.
  • [The] renewal process can be better/automated.
Kemp [LoadMaster] is an affordable solution for enterprise needs and can handle a large volume of sessions. Deployment is easy and stable and if any help is needed, support is extremely helpful and friendly. I have not had any issues with this product or after [purchase] so far.
October 20, 2021

Kemp Review 2021

Score 10 out of 10
Vetted Review
Verified User
We are using Kemp LoadMaster across the whole organization. We use to load balance several VMs for business applications.
  • Exchange servers
  • Student information servers
  • DNS servers
  • Refresh page is too quick on view/modify services
Global balancing is great for full redundancy in the event of disaster and recovery.
Score 10 out of 10
Vetted Review
Verified User
Our company has used Kemp LoadMasters for several years now for load balancing our Exchange servers and a couple of web applications. They run very smoothly, with no issues at all. Their support is great, which we only occasionally have recurred to for migrating web apps from other appliances to the Kemps. They are very knowledgeable and have been very helpful in completing our project goals. Would definitely recommend Kemp products.
  • Load balancing
  • Reliability
  • Robust support
  • GUI could use some improvement
Any scenario that requires load balancing heavy traffic services, such as publicly accessible websites, email servers, FTP servers, databases, or even any internal services that might require a high availability setup.
Score 9 out of 10
Vetted Review
Verified User
We are using Kemp LoadMaster across our entire organization. We have an LB pair in our DMZ as well as a pair internal. We primarily use Kemp LoadMaster to load balance our ERP system and our DMZ-hosted websites. We've been happy with Kemp LoadMaster for 5+ years. The customer support, manuals, and appliance UI are outstanding.
  • The appliances are extremely stable.
  • The UI is easy to use.
  • Support is great, especially for someone just starting out.
  • Remembering to save certain individual pieces of the configuration while on the same configuration page can be confusing.
Great for internal and external load balancers and a good price.
October 11, 2021

Kemp LoadMaster

Score 8 out of 10
Vetted Review
We have implemented these for a few clients. They are quick and easy to get going and haven't failed us or our clients yet.
  • Manages the incoming web traffic for various applications.
  • Allows multiple connection to spread the incoming load in an efficient manner.
  • Extremely easy to implement and manage.
  • HA Setup and configuration
  • Lack of notification why you can't manage certain aspects if HA is misconfigured
If a client has a need for multiple servers behind a single FQDN, then Kemp LoadMaster is an option. Additionally, if an RDS Gateway Farm is behind it, connections still reach the valid destination and stay connected over time.
Score 9 out of 10
Vetted Review
Verified User
Kemp LoadMaster is being used as an on-premises load balancer and SSL termination. The product is easy to use in the browser interface. The API/CLI could use some more features to bring it on parity with the GUI. Overall it provides the needed features with ease of use and great support for our needs so far.
  • On-premises load balancing
  • SSL termination
  • Web GUI
  • API
  • CLI
Well suited for on-premises load balancer and SSL termination; less appropriate for cloud based tasks. WUI is functional but API/CLI is lacking. If API/CLI were more secure/robust, it would be easier to use.
Score 10 out of 10
Vetted Review
Verified User
We are using Kemp LoadMaster as a proxy between exchange servers, web applications, and external users to protect/balance the internal resource from the outside world. The product has been deployed in our environment for more than 5 years. We are moving more and more web applications behind this appliance to save static IP addresses and reduce the configuration between different web platforms. The load balance function also helps us continuously provide service while we are doing regular maintenance at the back-end server farm.
  • SSL offloading, SSL ciphers option
  • Load balance for the back-end server farm
  • Product support
  • Template for different web application
  • Quite a lot of different options to configure popular web applications such as Exchange OWA
  • The template could be more user-friendly. Kemp could provide more examples of how to customize settings instead of just giving the package.
  • The configuration GUI could be better by providing a guide or more options to choose from instead of typing in.
If you have a variety of web applications on different web platforms, Kemp LoadMaster is a one-time stop piece for you to force the SSL/TLS strong encryption. It handles the security traffic between the end-user and the web application. You don't need to worry about different configurations from different web servers because Kemp does it all. For network load balance, Kemp is also well suited at balancing the traffic load between multiple internal servers, so you can add/remove servers much easier, plus you can easily upgrade/maintain the internal server without interrupting the service.
September 25, 2021

Great Product

Score 10 out of 10
Vetted Review
Verified User
The whole organization uses it [Kemp LoadMaster] today. We use it to load balance Exchange servers, virtual desktop environments, and multiple in-house apps. It allows us to provide system redundancy across multiple apps and systems that keeps our uptime number high.
  • Support is great.
  • Ease of use and configuration
  • The templates that come with the system make it easy.
  • The interface could be more intuitive during setup.
If you do not need a lot of fancy features that come with the big players like F5, then this is good for you. Review what features you need and then see if Kemp LoadMaster gives you what you need. In most cases they will give you what you need and will save you a lot of money.
Praveen Krishnan | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Kemp LoadMaster is generally used for our clients and internally. This is to help load balance Exchange HTTP and HTTPS traffic coming into the Exchange server. We also widely use this to have SMTP and SMTPS traffic load balanced as well. This way we have managed to control the kind of high load that is hitting the exchange server and have it at a much more managed level, routing it through Kemp LoadMaster.
  • It is easy to set up the virtual services with templates that are readily available.
  • Once the setup of the virtual services is complete, getting the service to work is also, most of the time, pretty seamless.
  • When all else fails and doesn't work, the support team is usually just a call away, and I've almost always had a good experience calling them for support.
  • The wait time on the calls can sometimes be quite disappointing. I have waited on calls for over 30 minutes in the past before an agent answers the call.
  • For some weird reason, every time a support agent starts a remote session, our call gets disconnected. And it can sometimes be a bit of a pain to call back and speak to the same agent, as sometimes we haven't been given a ticket number as well and will have to explain the issue over again to the new agent who picks up the call. This issue happened on this call as well. Maybe it'd be good to provide ticket numbers at the start of the call?
  • Maybe it is the type of microphones the agents use or because everyone is working at home currently (mostly), but the voice clarity of the call could be improved, as sometimes its difficult to hear what the agent is saying.
September 24, 2021

Kemp 2021 Review

Score 10 out of 10
Vetted Review
Verified User
It, Kemp LoadMaster, is being used to load balance the data across our network to increase capacity (concurrent users) and reliability of applications. It is also used to provide an extra layer of protection of our data on our network to minimize access to bad actors trying to access our environment for exploitation.
  • Keeps data flow leveled throughout our network.
  • Helps us monitor stress on our network with data and apps.
  • Support is superb when needing help with technical issues.
  • Having dashboard will show which system is acting as Master or Secondary.
  • Have report format clearer to isolate data.
  • Kemp LoadMaster allows the option to pause renewal emails when an order is in process of renewal.
Our Kemp LoadMaster helps us evaluate how, and if the load of data is flowing evenly, and if resources are adequately allocated to critical network servers.
September 20, 2021

Kemp Experience

Score 8 out of 10
Vetted Review
Verified User
Kemp LoadMaster hosts virtual services/applications and balances the traffic from users.
  • Host Virtual services/applications
  • WAF acts as a firewall/layer of security
  • Pricing
  • Better GUI can be more informative in terms of graphs/traffic/setting up new services
  • WAF can be more informative
Kemp [LoadMaster] is well suited to monitor the traffic. WAF features act as a layer of security for applications where the traffic is passed through [a] tunnel of rules and bad ones are blocked.
Score 10 out of 10
Vetted Review
Verified User
We have two Kemp LB's across our two DC's. They balance the incoming requests between the server infrastructure that we have clustered.
  • Reliability
  • Load balancing
  • Great support
  • Not as many bells and whistles as the competitors.
  • Cheaper than some competitors, but not super cheap.
  • Depending on your needs there are some free options out there.
It is well suited for most load-balancing needs and works great for on-premise SfB deployments with load-balancing edge server traffic. As they are a reliable product, I would recommend them where a HA pair is required. Depending on the size of the deployment you could look at some free options that would meet the requirements.
Janne Mikola | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
We are using Kemp LoadMaster within our organization in different departments for different products running highly available infrastructure and requiring significant scaling. We moved from a well-known but smaller and free open-source project to something more enterprise-grade, professional, and potentially even more reliable. We are happy with Kemp LoadMaster's deployment process that felt logical and didn't have any surprises. We were able to create a HA configuration with the tool without any help, consultation, or even manuals, which always tells a great story about a good UI.
  • Installation procedure
  • Creating the configuration for HA
  • Being stable and efficient
  • Documentation should be more concise and to the point.
  • There should be an LTE type of release train available.
  • Use in Linux environments should be supported better.
In Windows application environments for enterprise-grade, highly available applications demanding serious scaling, Kemp LoadMaster is a great choice. It has easy installation and good default settings. In Linux application environments Kemp LoadMaster doesn't shine, though. Kemp LoadMaster can be deployed in a virtual infrastructure including VMware vcloud / ESXi but should be deployable elsewhere as well.
September 14, 2021

Kemp LoadMaster RULEZ

Score 10 out of 10
Vetted Review
Verified User
It is used as a network load balancer throughout the organization. This ensures uninterrupted access to the business critical process.
  • Load distribution between terminal servers
  • Providing fault-tolerant access to S4B
  • Balancing access to web resources
  • Maybe trouble shooting I don't have any specific wishes yet
It is very good at using both a network load balancer and a gateway for connecting to web resources. Good technical support, good instructions, allow you to master this product from scratch on your own.
Score 10 out of 10
Vetted Review
Verified User
We use Kemp LoadMaster to load-balance two mail servers. Kemp software manages the virtual IP that clients point to.
  • Simple, reliable, no frills load-balancer.
  • Easy to set up and use.
  • Great technical support.
  • Menu choices could be a little less confusing.
  • I cannot think of anything I dislike about the product.
  • I haven't encountered any weaknesses.
[Kemp LoadMaster] is a simple, reliable, no-frills load balancer that does exactly what it's intended to do. It manages virtual IPs and allows working on the passive node without any downtime. Additionally, it is perfectly suited for any application that requires high availability based on IP. Also, it doesn't require a hardware appliance, so it can be installed on a Windows Server VM.
Score 10 out of 10
Vetted Review
Verified User
Our Kemp LoadMasters are being used as a High Availability Active/Active Cluster on two sites to load balance and provide security on all inbound traffic.
It's used for all our web servers.
It addresses the business problems of:
1. Having a single point of failure for email ingress.
2. Providing a simple, robust load balancing.
3. Securing inbound traffic.
  • Easy to deploy
  • Stability
  • Good Support
  • Well priced
  • Lack of documentation
Firstly, Kemp LoadMaster's pricing makes this product much more affordable than other options on the market. With Kemp's software, you can solve a huge number of different tasks.
September 02, 2021

Kemp is a good partner?

Score 9 out of 10
Vetted Review
Verified User
Our organization has services at a country level, which implies multiple connections to web services exposed to the public, balanced through a Kemp asset.
  • Support
  • Load balancing
  • Virtual services
  • Log off button on the GUI
  • Improve the graphical interface
  • Kemp LoadMaster is much better for medium or large-scale environments
  • Not as appropriate for organizations without qualified personnel
August 31, 2021

Value for money!

Score 10 out of 10
Vetted Review
Verified User
We use Kemp LoadMaster across multiple organizations to load balance mail servers, web servers, and mobile applications. It addresses the problem of speed, reliability, load balancing, sandboxing, and no-downtime servicing. The product itself is self managed and quite robust. The VM version of the product consumes the bare minimum of CPU and memory, without even blinking with 2,000 concurrent connections at the same time (as an example). The product has enabled us to innovate and enhance our current technological landscape without worrying about adding a new infrastructure to support these innovative measures.
  • Load balancing
  • SSL offloading
  • Web application firewall
  • Balance throughput
  • User Interface could be a bit more modern.
  • Additional templates for other types of operating environments can be added.
Web servers, mobile apps, mail servers, and mission-critical customer-facing web applications
Score 10 out of 10
Vetted Review
Verified User
Our primary requirement is load balance and protect the exchange active sync and OWA requests. We were using Microsoft TMG server previously for proxy server to protect our exchange server. We recently decided to upgrade exchange server, but MS TMG server support has expired. I was looking for a solution that can provide similar solution as TMG server. While I was talking to a consultant, they recommended Kemp load balancer. On top of proxy server, I also configured Exchange with DAG, so we needed load balancing as well. We are using it for whole corporation, and it provides the business continuity.
  • Installation & configuration is really easy. The web portal is self explanatory.
  • The load balancing by Kemp for our exchange server is doing excellent job.
  • The tech support is par excellence.
  • The backup/restore feature is so simple. In case of failure, you can bring back Kemp in a short time.
  • I enjoyed the live logs and reporting in TMG server, which i miss it here.
  • The license file is locked with the MAC address. In case of restoring it on a different VM would cause issue.
  • The Web portal is sometimes looks more complex and confusing. It can be more simplified.
When it comes to load balancing the requests, Kemp is doing an excellent job. The intrusion prevention and web application firewall is another excellent feature. If your organization needs all these great features but in cost crunch, Kemp is the solution.
If tech support is more important, Kemp is the solution. I have had fewer conversations with their tech support, and they impress me every time.
If you need more detailed live reporting then Kemp is lagging there. If you are using virtual server then the restore is easy except the license is locked with MAC so changing licenses might be an additional headache. I just tried to transfer my VM from one host to another host, but it locked it due to MAC restriction. I called support, installed new VM and restored my configuration. I was up in no time.
We have 24/7 support with Kemp. I have used them on numerous occasion (day time, night time, weekend etc.) and they are always available and very knowledgeable. They are always willing to help with patience.
Score 10 out of 10
Vetted Review
Verified User
We have three LoadMaster instances. They are used to load balance connections across redundant front end web servers. This gives us added stability and scalability for critical business functions.
  • Increased scalability.
  • Added redundancy.
  • Easy to use.
  • Firmware updates could come from the cloud. Add update notifications.
  • Pull templates from the cloud directly from the GUI.
It is very cost effective and easy to use. We haven't had any scalability issues. The software is very stable as well.
Score 10 out of 10
Vetted Review
The Kemp LoadMaster is used for many purposes. As DNS load balancer, as WAF, as Web Application Proxy, and as Exchange security. It is used mainly in the hosting environment for our company and our customers.
It addresses security and redundancy problems. We are using a cluster of Azure Kemp LBs for DNS load balancing for a redundant data center connected with the internet. The LoadMaster is checking the ports and will just give an IP for an FQDN if the service behind this IP is online. We also use Kemp LoadMaster as a security gateway for our exchange servers, to reduce security breaches like the one in March 2021. And last but not least, we use it as a content switching instance, so we can use one web server for many websites or avoid folders behind the FQDN.
  • Reliable: We had no downtimes in the last 3 years.
  • Great support: Everything you need to accomplish is just a call away.
  • Easy to implement. There are templates for all used virtualization environment.
  • Easy to adapt to your needs: There are many templates for the normal use cases.
  • Help in other languages.
+ Web application firewall
+ Web application proxy
+ Load balancing & redundancy
+ Folder redirection
+ Security upgrade for web servers

- VoIP gateway (for Internet communication with the telephone server).
- Exchange communication with O365.
Andrew Mervis | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
We use Kemp [LoadMaster] to balance our Exchange servers and VMware Horizon connection servers. Kemp [LoadMaster] enables us to disengage a server from the available server pool so that we can do maintenance on individual servers while maintaining services to our users. Not having to schedule a maintenance window has really helped our flexibility with patching during the recent zero-day Exchange vulnerabilities this year.
  • Easy to setup
  • Easy to manage
  • Responsive support teams
  • More templates
[Kemp LoadMaster is well suited for] load balancing systems that need always-up service (email, VDI)
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